Instruction/ maintenance manual of the product WEATHERMAKER 48/50AJ Carrier
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Manufacturer reserves the right to disco ntinue, or change at any time, specifications or de signs without notice and without inc urring obligations. Catalog No . 04-53480077-0 1 Printed in U. S.A. F orm 48/50A-9T Pg 1 6-10 Replaces: 48/50A-7T Controls , Star t-Up , Oper ation, Ser vice and T roub leshooting CONTENT S Page SAFETY CONSIDERA TIONS .
2 CONTENTS (cont) Page Indoor Air Quality Control . . . . . . . . . . . . . . . . . . . . . . . . . . 67 •O P E R A T I O N • SETTING UP THE SYSTEM • PRE-OCCUP A NCY PURGE Dehumidification and Reheat . . . . . . . . . . . . . . . . . . . . . . 69 • SETTING UP THE SYSTEM •O P E R A T I O N T emperature Comp ensated Start .
3 GENERAL This book contains Start-Up, Controls Operation, T rouble- shooting and Service information for the 48/50A Series rooftop units. See T able 1. These units are equipped with Comfort Link™ controls. Use this guide in conjunction with the separate installation instructions packaged with the unit.
4 System diagnostics are enhanced by the use of multiple external sensors for air temperatures, air pressures, refrigerant temperatures, and refrigerant pressures.
5 Items in the Configuration and Service T est modes are password protected. The display will flash P ASS and WORD when required. Use the and arrow keys to enter the four digits of the password.
6 Table 2 — Scrolling Marquee Menu Display Structure ( Comfort Link™ Displa y Modes) RUN ST A TUS SER VICE TEST TEMPERA TURES PRESSURES SETPOINTS INPUTS OUTPUTS CONFIGURA TION TIME CLOCK OPERA TIN.
7 ST ART -UP Unit Preparation — Check that unit has been installed in accordance with the installation instructions and applicable codes. Unit Setup — Make sure that the economizer hoods have been installed and that the outdoor filters are properly installed.
8 Table 3 — Fan Performance — 48AJ,A K020,025 an d 48A2,A3020 Uni ts Table 4 — Fan Performance — 48 AJ,AK027,030 and 48A2,A302 5-030 Units LEGEND Bhp — Brake Horsepo wer edb — Entering Dry Bulb ewb — Entering Wet Bulb NO TES: 1. F an performance is based on w et coils, economiz er, roof curb, cabinet losses, an d clean 2-in.
9 Table 5 — Fan Performa nce — 48AJ,AK,A2,A3035 Units Table 6 — Fan Performance — 48AJ,AK036 Units LEGEND Bhp — Brake Horsepower edb — Entering Dry Bulb ewb — Entering Wet Bulb NOTES: 1. F an performance is based on wet coils , economizer , roof curb , cabinet losses, and clea n 2-in.
10 Table 7 — Fan Performa nce — 48AJ,AK,A2,A3040 Units Table 8 — Fan Performance — 48AJ,AK0 41 Units AIRFLO W (Cfm) A V AILABLE EXTERNAL ST A TIC PRESSURE (in. wg) 0 . 20 . 40 . 60 . 81 . 01 . 21 . 41 . 61 . 82 . 0 R p mB h pR p mB h pR p mB h pR p mB h pR p mB h pR p mB h pR p mB h pR p mB h pR p mB h pR p mB h p 8,000 502 2.
11 Table 9 — Fan Performa nce — 48AJ,AK,A2,A3050 Units Table 10 — Fan Performanc e — 48AJ,AK051 Units LEGEND Bhp — Brake Horsepower edb — Entering Dry Bulb ewb — Entering Wet Bulb NOTES: 1. F an performance is based on wet coi l s, economiz er, roof curb , cabinet losses, and clean 2-in.
12 Table 11 — Fan Performan ce — 48AJ,AK,A2,A3060 Units Table 12 — Fan Perfo rmance — 50A J,AK020,0 25 and 50A2 ,A3020 U nits LEGEND Bhp — Brake Horsepo wer edb — Entering Dry Bulb ewb — Entering Wet Bulb NO TES: 1. F an performance is based on w et coils, economiz er, roof curb, cabinet losses, an d clean 2-in.
13 Table 13 — Fan Perfor mance — 50AJ,AK027,0 30 and 50A2,A3025-030 Units Table 14 — Fan Performanc e — 50AJ,AKA2,A3035 Units LEGEND Bhp — Brake Horsepo wer edb — Entering Dry Bulb ewb — Entering Wet Bulb NO TES: 1. F an performance is based on w et coils, economiz er, roof curb, cabinet losses, an d clean 2-in.
14 Table 15 — Fan Performanc e — 50AJ,AK036 Units Table 16 — Fan Performan ce — 50AJ,AK,A2,A3040 Units LEGEND Bhp — Brake Horsepower edb — Entering Dry Bulb ewb — Entering Wet Bulb NOTES: 1. F an performance is based on wet coils, economiz er, roof cu rb, cabinet losses , and clean 2-in.
15 Table 17 — Fan Performanc e — 50AJ,AK041 Units Table 18 — Fan Performan ce — 50AJ,AK,A2,A3050 Units AIRFLO W (Cfm) A V AILABLE EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 8,000 475 2.69 523 3 .
16 Table 19 — Fan Performanc e — 50AJ,AK051 Units Table 20 — Fan Performan ce — 50AJ,AK,A2,A3060 Units AIRFLO W (Cfm) A V AILABLE EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 10,000 397 2.69 461 3.
17 Table 21 — Fan Performanc e — 48AW,AY020,025 and 48A4,A5020 Units Table 22 — Fan Performance — 48AW,AY027,030 and 48A4,A5025-030 Units LEGEND Bhp — Brake Horsepo wer edb — Entering Dry Bulb ewb — Entering Wet Bulb NO TES: 1. F an performance is based on w et coils, economiz er, roof curb, cabinet losses, an d clean 2-in.
18 Table 23 — Fan Performanc e — 48AW,AY,A4,A5035 Units Table 24 — Fan Performance — 48AW,AY0 36 Units See legend on page 17. AIRFLO W (Cfm) A V AILABLE EXTERNAL ST A TIC PRESSURE (in.
19 Table 25 — Fan Performanc e — 48AW,AY,A4,A5040 Units Table 26 — Fan Performance — 48AW,AY0 41 Units See legend on page 17. AIRFLO W (Cfm) A V AILABLE EXTERNAL ST A TIC PRESSURE (in. wg) 0 . 20 . 40 . 60 . 81 . 01 . 21 . 41 . 61 . 82 . 0 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 8,000 526 3.
20 Table 27 — Fan Performanc e — 48AW,AY,A4,A5050 Units Table 28 — Fan Performance — 48AW,AY0 51 Units AIRFLO W (Cfm) A V AILABLE EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 1.2 1. 4 1.6 1.8 2.0 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 8,000 536 3.
21 Table 29 — Fan Performanc e — 48AW,AY,A4,A5060 Units Table 30 — Fan Performanc e — 50AW,AY020,025 and 50A4,A5020 Units LEGEND Bhp — Brake Horsepo wer edb — Entering Dry Bulb ewb — Entering Wet Bulb NO TES: 1. F an performance is based on w et coils, economiz er, roof curb, cabinet losses, an d clean 2-in.
22 Table 31 — Fan Performance — 50AW,AY027,030 and 50A4,A5025-030 Units Table 32 — Fan Performanc e — 50AW,AY,A4,A5035 Units LEGEND Bhp — Brake Horsepo wer edb — Entering Dry Bulb ewb — Entering Wet Bulb NO TES: 1. F an performance is based on w et coils, economiz er, roof curb, cabinet losses, an d clean 2-in.
23 Table 33 — Fan Performance — 50AW,AY0 36 Units Table 34 — Fan Performanc e — 50AW,AY,A4,A5040 Units LEGEND Bhp — Brake Horsepower edb — Entering Dry Bulb ewb — Entering Wet Bulb NOTES: 1. F an performance is based on wet coils , economizer , roof curb , cabinet losses, and clea n 2-in.
24 Table 35 — Fan Performance — 50AW,AY0 41 Units Table 36 — Fan Performanc e — 50AW,AY,A4,A5050 Units LEGEND Bhp — Brake Horsepower edb — Entering Dry Bulb ewb — Entering Wet Bulb NOTES: 1. F an performance is based on wet coi l s, economiz er, roof curb , cabinet losses, and clean 2-in.
25 Table 37 — Fan Performance — 50AW,AY0 51 Units Table 38 — Fan Performanc e — 50AW,AY,A4,A5060 Units AIRFLOW (Cfm) A V AILABLE EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 10,000 429 2.98 488 3.
26 Table 39 — Motor Limitati ons LEGEND NO TES: 1. Extensiv e motor and electrical testin g on the Carrier units has ensur ed that the full horsepo wer range o f the motor can be utilized with confiden c e.
27 Table 40B — Air Quantity Limits (50AJ,AK,AW,AY,A2,A3,A4,A5) *Operation at th ese lev els may be limited b y entering ev aporator air wet b ulb temperatures. CONTROLS Q UICK ST ART The following section will provide a quick user guide to set- ting up and configuring the A Series units with Comfort Link™ controls.
28 V ariable Air V olume Units Using Return Air Sensor or Space T emperature Sensor — T o con- figure the unit, perform the following: 1. The type of control is configured under Configuration UNIT C.TYP . Set C.TYP to 1 (V A V -RA T) for return air sensor .
29 Indoor Air Quality (IA Q) Options DEMAND CONTROLLED VENTILA TIO N — Un der Configuration IAQ DCV .C , the following configuration parameters should be set to establish the minimum and maxi- mum points for outdoor air damper position during demand controlled ventilation (DCV): EC.
30 However , it is important to note that the user can leave a Service T est mode to view any of the local display modes and the control will remain in the Service T est mode. Independent Outputs — Th e INDP sub-mode items can be turned on and off regardless of the other category states.
31 THIRD P ARTY CONTROL Thermostat — The method of control would be through the thermostat inputs: Y1 = first stage cooling Y1 and Y2 = first and second stage cooling W1 = first stage heating W1 and.
32 IQ.I.C = 2 (IAQ Discrete Override) — If the user sets IQ.I.C to 2 (IAQ Discrete Override), and Configuration SW .LG IAQ.L is set to OPEN, then an open switch reads low and a closed switch reads high. If the switch reads low , no action will be taken.
33 Table 42 — Operat ing Modes Displa y Table Supply Air Reset ( SA.R ) — This variable displays if the sup- ply air reset is currently active. This applies to cooling only . Demand Limit in Effect ( DMD.L ) — This variable displays if the mechanical cooling capacity is currently being limited or reduced by an outside third party .
34 S y s tem Mode = OFF? Inp u t s -> FIRE - > F S D in a l a rm? HV AC Mode = OFF (Fire S h u tdown) HVAC Mode = OFF (Di sab led) Unit not in f a ctory te s t AN D fire- s moke control mode i s.
35 HV AC Mode — TEMPERING HICOOL (12) — The econ- omizer is at minimum vent position but the combination of the outside-air temperature and the economizer position has dropped the supply-air temperature below the tempering cool set point. Staged gas heat is used to temper the ventilation air .
36 Compensated Start section for more information. A setting of 0 minutes indicates T emperature Compensated S tart in Cooling is not permitted. T e mperature Compensate d Start Heating Factor ( TCS.H ) — This factor is used in the equation of the T emperature Compen- sated Start T ime Bias for hea ting.
37 Reset MA T T able Entries? ( MA T .R ) — This configuration allows the user to reset the in ternally stored MA T learned con- figuration data back to the default values. The defaults are set to a linear relationship betwee n the economizer damper posi- tion and OA T and RA T in the calculation of MA T .
38 out a LOW COOL or a HIGH COOL mode and m aintain a low or high cool supply air set point. • C.TYP = 6 (SPT -2 STG) This configuration will force the control to monitor the space temperature sensor to make a determinatio n of mode and allow two stages of cooling.
39 Table 47 — Cooling Configuration Capacity Threshol d Adjust ( Z.GN ) — This configuration is used for units using the “SumZ” algorithm for cooling capacity control ( Configuration UNIT C.
40 temperature (OA T) rises above 75 F or the highest active cir- cuit saturated condensing temper ature (SCT) rises above the HPSP and remains on until the c ondition is repaired regardless of the OA T and SCT values. Any time the alert occurs, a strike is called out on the affect- ed compressor .
41 The advantage of this offset technique is that the control can safely enforce a vent mode without worrying about crossing set points. Even more importantly , under CCN linkage, the occupied heating.
42 Table 48 — Cool/Heat Set Point O ffsets Configurat ion T imeguar ds — In addition to the set points and offsets which determine the trip points for bringing on and bringing off cool modes there is a timeguard of 8 minutes which enforces a time delay between the transitioning from a low cool to a high cool mode.
43 then Lo Cool Mode mechanical stages = 2 and Hi Cool Mode mechanical st ages = 2. 5. If the economizer position is greater than Configuration ECON EC.MX – 5% for more than 8 minutes but less than 1 1.5 minutes and m echanical cooling has started then: Lo Cool Mode mechanical stages = 2 Hi Cool Mode mechanical stages = 3 6.
44 Table 52 — Staging Sequence wi th Hot Gas Bypass — 48/50AK,AY020-027 and Multi-Stage 48 /50AJ,AW020-027 *With Minimum Load V alv e ON. Table 53 — Staging Sequence without Hot Gas Bypass — 4.
45 Table 57 — Staging Seque nce without Hot Gas Bypass — 48/50A3,A5 020-027 and Multi -Stage 48/50A2,A4020-0 27 Table 58 — Staging Sequenc e with Hot Gas Bypass — 48/50A3,A5 020-027 and Multi -Stage 48/50A2,A4020-0 27 *With Minimum Load V alv e ON.
46 COOLING MODE DIAGNOSTIC HELP — T o qui ckl y de- termine the current trip points for the cooling modes, the Run Status sub-menu at the local display allows the user to view the calculated start and stop points for both the cooling and heating trip points.
47 Table 62 — Run Stat us Cool Display Slow Change Ca p Override ( SLOW ) — W ith a rooftop unit, the design rise at 100% total un it capacity is generally around 30 F . For a unit with 4 stages, each stage represents about 7.5 F of change to EDT .
48 MA T Calc Config ( MA T .S ) — This con figuration gives the user two options in the processing of the mixed-air temperature (MA T) calculation: • MA T .S = 0 There will be no MA T calculation. • MA T .S = 1 The control will attempt to learn MA T over time.
49 Table 63 — Deman d Limit Configuration The relevant configurations for this type of demand limiting are: Loadshed Group Number ( SH.NM ) — CCN Loadshed Group number Loadshed Demand Delta ( SH.DL ) — CCN Loa dsh ed Demand Delta Maximum Loadshed T ime ( SH.
50 Table 64 — Condenser Fan Staging * F or size 60 ton units with MCHX condensers, MBB – Rela y 6 drives OFC4 and compressor contactor B1 or B2 auxiliar y contacts dr ive OFC1. For 060 size units with MCHX condensers, there are four outdoor fans, two for each independent refrigerant circuit.
51 Table 65 — Heating Configur ation *Some defaults are model number dependent. Occupied Heating Enable ( OC.EN ) — This configuration only applies when the unit’ s control type ( Configuration UNIT C.TYP ) is configured for 1 (V A V -RA T) or 2 (V A V - SPT).
52 TEMPERA TURE DRIVEN HEA T MODE EV ALUA TION — This section discusses the cont rol method for selecting a heat- ing mode based on temperature. Regardless of whether the unit is configured for return air or space temperature, the logic is ex- actly the same.
53 Table 67 — Mode Trip Helper Table If the HV AC mode is HIGH HEA T : • If Electric Heat is config ured, then the control will request the supply fan ON • If Gas Heat is configured , then the I.
54 Table 68 — Stag ed Gas Configur ation *Some configurations are model number dependent. Staged Gas Heat S taging — Differen t unit sizes will control heat stages differently based on the amount of heating capacity included. These staging patterns are selected based on the mod- el number .
55 Table 69B — Staged Gas Heat — 48A2,A3,A4,A5 Units Table 70 — Staged Gas He at Control Steps ( Configuration HEA T SG.CF HT .ST = 1) Table 71 — Staged Ga s Heat Control Steps ( Configur ation HEA T SG.CT HT .ST = 2) Table 72 — Staged Ga s Heat Control Steps ( Configur ation HEA T SG.
56 Table 73 — Staged Ga s Heat Control Steps ( Configur ation HEA T SG.CT HT .ST = 4) RELOCA TE SA T (Supply Air T emperature) SENSOR FOR HEA TING IN LINKA GE APPLICA TIONS — On C CN i.
57 HV AC mode = “T empering LoCool” HV AC mode = “T empering HiCool” The decision making/selection process for the tempering trip set point is as follows: • If an HV AC cool mode is in effect, then the vent trip point is T. C L . • If in a pre-occupied purge mode ( Operating Modes MODE IAQ.
58 Static Pressure Set Point ( SP .SP ) — This is the static pres- sure control point. It is the point against which the Comfort Link controls compare the actual measured supply duct pressure for determination of the error that is used for PID control.
59 Therefore, the amount to add to the economizer ’ s ECONOMIN configuration is: (0.5/0.75) x (50-20) = 20%. In effect, for the positioning of the economizer , ECONOMIN would now be replaced by ECONOMIN + 10%.
60 Table 76 — Static Pressure Res et Related Points Table 77 — Fan Status Monitoring Configu ration Fan Stat Monitoring T ype ( SFS.M ) — This configuration se- lects the type of fan status monitoring to be perform ed.
61 modulate to the same control point (Sum Z) that is used to control capacity staging. The advantage is lower compressor cycling coupled with tighter temperature control. Setting this option to No will cause the economizer , if it is able to provide free cooling, to open to the Economizer Max.
62 Table 79 — Economizer Configur ation Table Custom Psyc hrometric Curv es — Refer to the psychrometric chart and the standard Honeywell A-D curves in Fig. 10. The curves start from the bottom and rise vertically , angle to the left and then fold over .
63 Unoccupied Economizer Fr ee Cooling Outside Lockout T emperature ( FC.LO ) — This configuration option allows the user to select an outside-a ir temperature below which unoc- cupied free cooling is not allowe d. This is further explained in the logic section.
64 Table 80 — Economizer Run Status Table Building Pressure Config ( BP .CF ) — This configuration se- lects the type of building pressure control. • BP .CF = 0, No build ing pressure control • BP .CF = 1 , constant volume two-stage power exh aust based on economizer position • BP .
65 CONST A NT VOLUME 2-ST AGE CONTROL ( BP .CF = 1 ) OPE RA TI ON — T wo exhaust fan relays will be turned on and off based on economizer position. The two trip set points are BP .P1 and BP .P2 . If the economizer is greater than or equal to BP . P1 , then power exhaust stage 1 is requested and a 60-second timer is initialized.
66 Table 83 — Power Exhaust Sta g ing ( BP.CF = 2) • If building pressure ( Pr essures AIR.P BP ) is less than the building pr essure set point ( Configuration BP BPSP ) minus the building pressure lo w threshold level ( Configuration BP B.
67 RELEV ANT ITEMS The economizer ’ s commanded output can be found in Outputs ECON ECN.C . The configurable fire speed override for supply fan VFD is in Configuration SP SP .FS . The supply fan relay’ s commanded output can be found in Outputs FA N S S.
68 • IQ.A.C = 4 (10K potentiometer minimum p osition) — W ith a 10K linear potentiometer connected to T B 5- 6 a n d 7 , the economizer minimum position will be scaled linearly from 0% (0 kilo-ohms) to EC. MX (10 kilo-ohm s). IAQ Analog Fan Config ( Configuration IAQ AQ.
69 IAQ Econo Override Pos ( Configuration IAQ AQ.SP IQ.O.P ) — This configuration is the position that the econo- mizer goes to when override is in effect. Diff. Air Quality Lo Limit ( Configuration IAQ AQ.SP DAQ.L ) — This is the dif ferential CO 2 level at which IAQ control of the dampers will be initiated.
70 Table 84 — Indoor Air Quality Configuration Table 85 — De humidification Configuration V ent Reheat Set Point Select ( D.V .CF ) — This configuration determines how the vent reheat set point is selected. • D.V .CF = 0 — Reheat follows an offset subtracted from return air temperature ( D.
71 maintain diagnostics, althoug h the end user will see a Dehumidification mode at the display . In additio n, for multi-stage cooling units the cooling cont rol point wil l be set to Configuration DEHU D.
72 Table 86 — CCN Configuration * F or units equipped with optional UPC, the CCN Baud Rate must be set to 3. Accept Global Holidays? ( HOL.T ) — If a device is broad- casting the time on the bus, it is possible to accept the time yet not accept the global holiday from the broadcast message.
73 then Alert 309 will occur . The unit will continue to run and the alert will automatically reset. Supply Duct Pressure Low Alert Limit ( SP .L ) — If the unit is a V A V unit with a supply duct pressure sensor and the mea- sured supply duct static pressure is below the configurable SP Low Alert Limit ( DP .
74 Discharge Pressure Circuit A T rim ( DP .A.T ) — This vari- able is used to adjust the disc harge pressure sensor reading for circuit A. The sensor reading can be adjusted ± 50 psi g to match the actual measured pressure. Used on 48/ 50A2,A3,A4,A5 units only .
75 Table 89 — Switch Logic Configuration Table 90 — Di splay Configuration Table 91 — Remote Switch Configuration Remote Switch Logic Configuration ( Configuration SW .LG RMI.L ) — The control allows for the configuration of a normally open/closed status of the remote input switch via RMI.
76 Table 92 — Re mote Switch Logic Configuration Monday In Period ( PER.X DA YS MON ) — This vari- able is used to include or remove Monday from the schedule. Each period is assigned an occupied on and off time. If this variable is set to YES, then Monday will be included in that peri- od’ s occupied time schedul e.
77 Table 93 — Time Clock Configuration TROUBLESHOO TING The scrolling marquee display shows the actual operating conditions of the unit while it is running. If there are alarms or there have been alarms, they will be displayed in either the cur- rent alarm list or the history alarm list.
78 T ransducer T roub leshooting — On 48/50AJ,AK, A W ,A Y units, the electronic control uses 2 suction pressure transducers to measure the suction pressure of circuits A an d B. The pressure/voltage ch aracteristics of thes e transducers are in shown in T ables 101 and 102.
79 Table 94 — Cooling Se rvice Analysis (cont) LEGEND PROBLEM SOLUTION COMPRESSOR RUNNING B UT COOLING INSUFFICIENT Suction Pressure Low 1. Refrigerant charge low . 1. Add refrige rant. 2. Head pressure low . 2. Check refrigerant ch arge. 3. Air filters dirty .
80 Table 95 — Gas Heating Service Analysis Table 96 — Electric H eat Service Analysis PROBLEM CA USE REMED Y Burners Will Not Ignite. Active alarm. Chec k active alarms using Comfort Link™ scrolling marquee. No power to unit. Chec k power supply , fuses, wiring, and circuit breakers.
81 Fig. 14 — IGC Service Analysis Logic LEGEND NO TE: Ther mostat Fan Switch in the “A UTO” position. IDM — Induced-Draft Motor IGC — Integrated Gas Unit Controller A48-5656.
82 Table 97 — 5K Thermistor Temperatu re vs. Resistance (SCT Sensors) (English) TEMP (F) V O LTA G E DROP (V) RESIST ANCE (Ohms) –25 3.699 98,010 –24 3.689 94,707 –23 3.679 91,522 –22 3.668 88,449 –21 3.658 85,486 –20 3.647 82,627 –19 3.
83 Table 98 — 5K Thermistor Tempera ture vs. Resistance (SCT Sensors) (SI) TEMP (C) V O LTA G E DROP (V) RESIST ANCE (Ohms) –32 3.705 100 ,260 –31 3.687 94,1 65 –30 3.668 88,4 80 –29 3.649 83,1 70 –28 3.629 78,1 25 –27 3.608 73,5 80 –26 3.
84 Table 99 — 10K Thermi stor vs. Resistan ce (T55, T56, OAT, RAT, EDT, LAT Sensors) (Englis h) TEMP (F) V O LTA G E DROP (V) RESIST ANCE (Ohms) –25 4.758 196,4 53 –24 4.750 189,6 92 –23 4.741 183,3 00 –22 4.733 177,0 00 –21 4.724 171,0 79 –20 4.
85 Table 100 — 10K Thermistor vs. Resistance (T55, T56, OAT, RAT, EDT, LAT Sensors) (SI) Table 101 — Suc tion Pressure Tran sducer Press ure (PSIG) vs.
86 Table 102 — Suctio n Pressure Trans ducer Pressure (PSIG) v s. Voltage (SP-A, SP-B, SP.X R = 1, 48/50AJ,AK,A W,AY Units Only ) PRESSURE (PSIG) V O LTA G E DROP (V) PRESSURE (PSIG) V O LTA G E DROP (V) PRESSURE (PSIG) VO LT AG E DROP (V) PRE SSURE (PSIG) V O LTA G E DRO P (V) 0 0.
87 Table 103 — Suctio n Pressure Transducer (PSIG) vs. Volt age (SP-A, SP-B, 48/50A2,A3,A4, A5 Units Only) PRESSURE (PSIG) VO L T AG E DROP (V) PRESSURE (PSIG) VO L TA G E DROP (V) PRESSURE (PSIG) VO LT A G E DROP (V) PRESSURE (PSIG) VO L TA G E DROP (V) 0 0.
88 Table 104 — Discharge Pres sure Transduc er (PSIG) vs. Voltage (DP -A, DP-B, 48/50A2,A3,A 4,A5 Units Onl y) PRESSURE (PSIG) V O LTA G E DRO P (V) PRESSURE (PSIG) V O LTA G E DROP (V) PRESSURE (PSIG) V O LTA G E DROP (V) PRESSURE (PSIG) VO LT AG E DROP (V) 14.
89 Table 104 — Discharge Pressu re Transduc er (PSIG) vs. Voltage (DP-A, DP-B, 48/50A2,A3, A4,A5 Units Only) (cont) PRESSURE (PSIG) V O LTA G E DRO P (V) PRESSURE (PSIG) V O LTA G E DROP (V) PRESSURE (PSIG) V O LTA G E DROP (V) PRESSURE (PSIG) VO LT AG E DROP (V) 338 2.
90 For cing Inputs and Outputs — Many v ariables may be forced both from the CCN and directly at the local display . This can be useful during dia gnostic testing and also during operation, typically as part of an advanced third party control scheme.
91 Cap Threshold Subtracting ( Z.MIN ) — This parameter is used in the calculation of SMZ and is calculat ed as follows: Z.MIN = Configuration COOL Z.GN * (–10 + (4* ( – SUB.R ))) * 0.6 Cap Threshold Adding ( Z.PLU ) — This parameter is used in the calculation of SMZ and is calculated as follows: Z.
92 Table 107 — Cooling Info rmation Display Table Table 108 — Mode Trip Helper Display Table Table 109 — CCN/Linkage Dis play Table Table 110 — Compress or Run Hours Display Table Table 111 — Compres sor Starts Display Table ITEM EXP ANSION RANGE UNITS POINT WRITE ST A TUS COOL COOLING INFORMA TION C.
93 Table 112 — Time Guard Displa y Table Table 113 — Softwa re Version Numbers Display Table Alarms and Aler ts — There are a variety of different alerts and alarms in the system. • P — Pre-Alert: Part of the unit is temporarily down. The alarm is not broadcast on the CCN network.
94 Table 114 — Aler t and Alarm Codes ALARM OR ALERT NUMBER DESCRIPTION ACTION T AKEN BY CONTROL RESET METHOD PROB ABLE CAUSE A051 Circuit A, Compressor 1 Stuc k On F ailure T urn off all compressor.
95 Table 114 — Alert and Alarm Codes (cont ) LEG END For 48/50A2,A3,A4,A5 units: • Compressor internal overload protector is open. Internal overload protectors are used in the Copeland compressors in all units except size 60 ton units with voltages of 208/230-v , 380-v , and 575-v .
96 A051 (Circuit A, Compressor 1 S tuck On Failure) A052 (Circuit A, Compressor 2 S tuck On Failure) A055 (Circuit B, Compressor 1 S tuck On Failure) A056 (Circuit B, Compressor 2 S tuck On Failure) — Alarm codes 051, 052, 055, and 056 are for compressors A1, A2, B1, B2 respectively .
97 any elements of the control which requires its use including economizer differential enthal py control. The RA.RH sensor is located in the return air section near the auxiliary control box. The sensor is a loop powered 4 to 20 mA sensor . This alert resets automatically .
98 compressor is brought on and 5 s econds afterwards. The rate of suction pressure change from 5 seconds before the compressor is brought on to when the compressor is brought on is calculat- ed. Then the rate of suction pressure change from when the compressor is brought on to 5 se conds afterwards is calculated.
99 T301 (Space T emperature Above Limit) — If the space tem- perature is above the c onfigurable SPT High Alert Limits (occupied [ Configuration ALLM SP .H.O ] for 5 minutes or unoccupied [ Configuration ALLM SP .H.U ] for 10 minutes), then an alert will be broadcast.
100 Because the Dirty Air Filter switch can be configured nor- mally opened or closed, the switch might be open or closed. The configuration for this switch input can be found at variable Configuration SW .LG SFS.L . V e rify that the configura- tion is set correctly .
101 T705 (Limit Switch Thermistor Failure) — A failure (the sen- sor is outside the range of –40 F to 240 F) of this thermistor ( Te m p e r a t u r e s AIR.T S.G .LM ) will cause an alert to occur and a disabling of the limit switch monitoring function for the staged gas control board (SCB).
102 RED JUMPER WIRE MUST BE ADDED BETWEEN R AND W1 FOR UNITS EQUIPPED WITH HEA T IN NON-THERMOST AT APPLICA TIONS ~ ~ ~ ~ ~ ~ ~~ TO NEXT PA G E Fig. 15 — T ypical Main Control Bo x Wiring Schematic .
103 ~ ~ ~~~ ~ ~ ~ Fig. 15 — T ypical Main Contr ol Box Wiring Sc hematic (48/50AJ,AK,A W ,A Y Units) (cont) a48-8355.
104 Fig. 16 — T y pical Main Contr ol Box Wiring Schemati c (48/50A2,A3 , A4,A5 Units) a48-8355.
105 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ TO NEX T PA G E Fig. 17 — T ypical Auxiliary Contr ol Box Wiring Schematic A48-7294.
106 ~ ~~ ~ ~ ~ ~~ ~ ~ ~ ~ ~ ~ Fig. 17 — T ypical A uxiliary Control Bo x Wiring Schematic (cont) a48-8356.
107 Fig. 18 — T ypi cal 2 Stage Gas Heat Wiring Sche matic (Size 051 and 060 Units Sho wn) a48--8357.
108 ~ ~ TO NEXT PA G E Fig. 19 — T ypica l Staged Gas Heat Wiring Schematic (Si z e 051 and 060 Units Sho w n) A48-7296.
109 ~ ~ Fig. 19 — T ypical Stag ed Gas H eat Wiring Schematic (Size 051 and 060 Units Shown) (cont) A48-8358.
110 Fig. 20 — Typical Electric Heat Control Schema tic — (50 Series Size 051 and 060 Units Sho wn) a50-8228.
111 TO NEXT PA G E Fig. 21 — T ypi cal Po wer Schematic (48/50 AJ,AK,A W ,A Y051 and 060 Units Sho w n) A48-7298.
112 FROM PREVIOUS PA G E Fig. 21 — T ypi cal Po wer Schematic (48/50 AJ,AK,A W ,A Y051 and 060 Units Show n) (cont) a48-8360.
113 Fig. 22 — T ypica l P ower Schema tic (48/50A2, A 3,A4,A5060 Unit Sho wn).
114 SW1 SW2 OR DEHUMIDIFY SWITCH Fig. 23 — T ypical Contr ols Option Wiring Schematic a48-8361.
115 Fig. 24 — T ypical Small Chassis Component Loc ation (Size 020-035 Units) a48-8362.
116 Fig. 25 — T ypical Lar ge Chassis Component Locations (Size 036-060 Units) A48-7302.
117 LEGEND AND NO TES FOR FIG. 15-25 LEGEND NO TES: 1. F actor y wiring is in accordance with the National Electr ical Codes. Any field modifications or additions must be in compli- ance with all applicable codes. 2. Use 75° C min wire for field po wer supply , use copper wires f or all units.
118 Table 115 — Main Control Board (MBB) Inputs and Out puts Y AC — Gas Heat Unit POINT NAME POINT DESCRIPTION I/O POINT NAME PLUG AND PIN REFERENCE SIGNAL PIN(S) PORT ST A TE INPUTS GASF AN Y AC .
119 Table 116 — Economizer Cont rol Board (ECB1) Inputs and Outputs POINT NAME POINT DESCRIPTION I/O POINT NAME PLUG AND PIN REFERENCE SIGNAL PIN(S) PORT ST A TE INPUTS RMTIN Remote occupancy DI1 J4.
120 Table 117 — VAV Control Board (ECB2) Inputs an d Outputs POINT NAME POINT DESCRIPTION I/O POINT NAME PLUG AND PIN REFERENCE SIGNAL PIN(S) PORT ST A TE INPUTS DI1 J4, 1-2 2 24V A C = 1, 0V AC = 0.
121 Table 118 — Staged Gas Cont rol Board (SCB ) Inputs and Ou tputs POINT NAME POINT DESCRIPTION I/O POINT NAME PLUG AND PIN REFERENCE SIGNAL PIN(S) PORT ST A TE INPUTS AN1 J5, 1-3 1=5v , 2=Vin, 3=.
122 Table 119 — Controls Expansion Board (CEM) Inputs Table 120 — IGC Board Inputs and Outputs SC R O L LI N G M A R Q UE E — This device is the keypad in- terface used to access the control information, read sensor values, and test the unit.
123 Table 121 — VFD Terminal Designations POWER EXHAUST — Th e un it s ca n be eq uip pe d wi th an optional power exhaust system. The power exhaust fans are forward-curved fans with direct-drive motors. The motors are controlled directly by the Comfort Link™ controls through the ECB1 board.
124 BOARD ADDRESSES — Eac h b oar d i n t he sy st em h as a n address. The MBB has a defau lt address of 1 but it does have an instance jumper that should be set to 1 as shown in Fig. 26. For the other boards in the system there is a 4-dip switch head- er on each board that should be set as shown below .
125 Table 122 — Field Conne ction Terminal Strips TERMINAL BO ARD TERMINAL NO . DESC RIPTION TYPE TB-1 - PO WER CONNECTION OR DISCONNECT (in Ma in Control Bo x) TB1 11 L1 power sup ply 208-230/4 60/.
126 Green LED — The boards also have a green LED, which is the indicator of the operation of the LEN communications, which is used for communications between the boards. On the MBB board the Local Equipment Network (LEN) LED should always be blinking whenever power is on.
127 T o connect the unit to the network: 1. T urn off power to the control box. 2. Cut the CCN wire and strip the ends of the red (+), white (ground), and black (–) conduc tors.
128 SER VICE Service Access — All unit components can be reached through clearly labelled hinged access doors. These doors are not equipped with tiebacks, so if heavy duty servicing is need- ed, either remove them or prop them open to prevent accidental closure.
129 COMBUSTION-AIR BLOWER — Cl ea n pe ri od ic all y t o as - sure proper airflow and heating efficiency . Inspect blower wheel every fall and periodically during heating season. For the first heating season, inspect blower wheel bi-monthly to deter - mine proper cleaning frequency .
130 1 1. Ensure surfaces are not allowed to dry before rinsing. Reapplying cleaner as needed to ensure 10-minute satura- tion is achieved. 12. Thoroughly rinse all surfaces with low velocity clean wa- ter using downward rinsing mo tion of water spray nozzle.
131 7. Outside of the unit, assemble the flex members to the cen- ter drive shaft with 4 bolts and nuts. The flex members have collars that need to be inserted into the smaller hole of the drive shaft flange. 8. Assemble the fle x member /dri ve shaft assembly to one of the shaft flanges, using 2 bolt s and nuts.
132 Condenser -F an Adjustment NOTE: Condenser fans on size 060 MCHX units are not adjustable. 1. T urn off unit p ower supply . 2. Remove fan guard. 3. Loosen fan hub setscrews. 4. Adjust fan height on shaft using a straightedge placed across venturi and measure per Fig.
133 20 T on M CHX CIRCUIT A Ch a rgi ng Ch a rt All C o mp r e ss or s on a Ci rc u it M us t b e O p er a ting All O u tdoor F a n s M us t b e O p er a ting 70 75 8 0 8 5 90 95 100 105 110 115 120 1.
134 Fig. 45 — Char ging Char t — 48/50A2,A3,A4,A5025 and 027 with R-410A Refrigerant LEGEND MCHX — Microchannel Heat Exchanger SST — Saturated Suction T emperature 25 a nd 2 7 T on M CHX CIRCU.
135 3 0 T o n M CHX CIRCUIT A Ch a rging Ch a rt A ll Compre ss or s on a Ci r c u it M us t b e O p er a ting Al l O u tdoor F a n s M us t b e O p er a ti n g 70 75 8 0 8 5 90 95 100 105 110 115 120.
136 3 5 T o n M CHX CIRCUIT A Ch a r ging Ch a rt A ll C om pre ss or s on a Ci rc u it M us t b e O per a ting A ll O u tdoor F a n s M us t b e Op er a ting 8 5 90 95 100 105 110 115 120 125 1 3 0 1.
137 40 T on M CHX Ch a rgi ng Ch a rt Al l C o m p r e ss or s on a Cir c u it M us t b e O p er a ting A ll O u tdoor F a n s M us t b e O per a ting 70 75 8 0 8 5 90 95 100 105 110 115 120 125 1 3 0.
138 60 T o n M CHX CIRCUIT A Ch a rging Ch a rt A ll Com pr e ss or s on a Ci r c u it M us t b e O p er a ting Al l O u tdoor F a n s M us t b e O p er a ti n g 70 75 8 0 8 5 90 95 100 105 110 115 12.
139 Main Burners — For all application s, main burners are factory set and should require no adjustment. MAIN BURNER REMOV AL (Fig. 52) 1. Shut off (field-supplied) manual main gas valve. 2. Shut off power supply to unit. 3. Remove heating access panel.
140 APPENDIX A — LOCAL DISPLAY TABLES MODE — RUN ST A TUS ITEM EXP ANSION RANGE UNITS CCN POINT WRIT E ST A TUS P A GE NO. VIEW A UTO VIEW OF R UN ST A TUS HV A C ascii string spelling out the.
141 APPENDIX A — LOCAL DISPLAY TABLES (cont) MODE — R UN ST A TUS (cont) MODE — SER VICE TEST MODE — TEMPERA TURES ITEM EXP ANSION RANGE UNITS CCN POINT WRITE ST A TUS P A GE NO. TMGD TIMEGU ARDS TG.A1 Compressor A1 Timeguard CMP A1_TG 93 TG.
142 APPENDIX A — LOCAL DISPLAY TABLES (cont) MODE — PRESSURES MODE — SET POINTS MODE — INPUTS *The display te xt changes depending on the remote switch configuration ( Configuration UNIT RM.CF ). If RM.CF is set to 0 (No Remote Switch), then the display te xt will be “On” or “Off.
143 APPENDIX A — LOCAL DISPLAY TABLES (cont) MODE — INPUTS (cont) *The display te xt changes depending on the remote switch configuration ( Configuration UNIT RM.CF ). If RM.CF is set to 0 (No Remote Switch), then the display te xt will be “On” or “Off.
144 APPENDIX A — LOCAL DISPLAY TABLES (cont) MODE — CONFIGURA TION (cont) ITEM EXP ANSION RANGE UNITS C CN POINT DEF A UL T P A GE NO. COOL COOLING CONFIGURA TION Z.GN Capacity T hreshold Adjst –10 - 10 Z_GAIN 1 39 ,46,91 MC.LO Compressor Lo ck o ut T emp –20 - 55 dF OA TLCOMP 40 39,4 8 C.
145 APPENDIX A — LOCAL DISPLAY TABLES (cont) MODE — CONFIGURA TION (cont) ITEM EXP ANSION RANGE UNITS CCN POINT DEF A UL T P A GE NO . BP BUILDING PRESS. CONFIG BP .CF Building Press. Config 0-3 BLDG_CFG 0 29 ,64,65 BP .RT Bldg.Pres .PID Run Rate 5-120 sec BPIDRA TE 10 64,65 BP .
146 APPENDIX A — LOCAL DISPLAY TABLES (cont) MODE — CONFIGURA TION (cont) ITEM EXP ANSION RANGE UNITS CCN POINT DEF A UL T P A GE NO. CCN CCN CONFIGURA TION CCNA CCN Address 1 - 239 CCNADD 1 7.
147 APPENDIX A — LOCAL DISPLAY TABLES (cont) MODE — TIME CLOCK MODE — OPERA TING MODES MODE — ALARMS ITEM EXP ANSION RANGE UNITS CCN POINT DEF A UL T P A GE NO .
148 APPENDIX B — CCN T ABLES All A Series units with Comfort Link™ controls have a port for interface with the Carrier Comfort Network ® (CCN) system. On TB3 there is a J1 1 jack which can be used for temporary connection to the CCN network or to computers equipped with CCN software like the Service T ool.
149 APPENDIX B — CCN T ABLES (cont) STATUS DISPLAY TABLES (cont) T ABLE DISPLA Y NAME RANGE UNITS POINT NAME WRITE ST A TUS GENERA L Occupied ? Y es/No OCCUPIED forcib le Static Pressure "H2O SP Building Pressure "H2O BP Outside Air Rel.Humidity % OARH f o rcible Return Air Rel.
150 APPENDIX B — CCN T ABLES (cont) STATUS DISPLAY TABLES (cont) T ABLE DISPLA Y NAME RANGE UNITS POINT NAME WRITE ST A TUS TEMPS Air T emp Lvg Supply F an dF SA T Return Air T emperature dF RA T fo.
151 APPENDIX B — CCN T ABLES (cont) SET POINT TABLE CONFIG TABLES T A BLE NAME RANGE UNITS POINT N AME DEF A UL T SET_PNT Occupied Heat Setpoint 40-99 dF OHSP 68 Occupied Cool Setpoint 40-99 dF OCSP 75 Unoccupied Heat Setpoint 40-99 dF UHSP 55 Unoccupied Cool Setpoint 40-99 dF UCSP 90 Heat-Cool Setpoint Gap 2-10 ^F HCSP_GAP 5 V A V Occ.
152 APPENDIX B — CCN T ABLES (cont) CONFIG TABLES (cont) SERVICE-CONFIG TABLES T ABLE NAME RANGE UNITS POIN T NAME DEF A UL T SCHEDO VR Schedule Number 0-99 SCHEDNUM 0 Accept Global Holidays? Y es/N.
153 APPENDIX B — CCN T ABLES (cont) SERVICE-CONFIG TABLES (cont) T ABLE NAME RANGE UNITS POI NT NAME DEF A UL T COOL Capacity Threshold Adjust –10 -> 10 Z_GAIN 1 Compressor Lock out T emp –20.
154 APPENDIX B — CCN T ABLES (cont) SERVICE-CONFIG TABLES (cont) T ABLE NAME RANGE UNITS POIN T NAME DEF A UL T HEA T Heating Control T ype 0 - 4 HEA TTYPE 0 Heating Supply Air Setpt 80-120 dF SASPH.
155 APPENDIX B — CCN T ABLES (cont) SERVICE-CONFIG TABLES (cont) T ABLE NAME RANGE UNITS POI NT NAME DEF A UL T SWLG Filter Status Inpt-Clean Open/Close FL T SLOGC Open IGC F eedback - Off Open/Close GASF ANLG Open RemSw Off-Unoc-Str t-NoOv Open/Close RMTINLOG Open Economizer Switch - No Open/Close ECOSWLOG Open F an Status Sw .
156 APPENDIX B — CCN T ABLES (cont) MAINTENANCE DISPLAY TABLES T AB LE DISPL A Y NAME RANGE UNIT S POINT NAME WRITE ST A TUS ALARMS01 Activ e Alar m ascii ALARM_ 01 ------------- ----------- asci i .
157 APPENDIX B — CCN T ABLES (cont) MAINTENANCE DISPLAY TABLES (cont) T AB LE DISPL A Y NAME RANGE UNIT S POINT NAME WRITE ST A TUS ECON_MIN Econo Damper Command P o s % ECONOCMD f orcible Econo Damper Current P os % ECONOPOS Econo Current Min. P os.
158 APPENDIX B — CCN T ABLES (cont) MAINTENANCE DISPLAY TABLES (cont) T AB LE DISPL A Y NAME RANGE UNIT S POINT NAME WRITE ST A TUS ENTHALPY Outdoor Air Enthalpy OAE Outside Air T emperature dF OA T forcible Outside Air Rel.
159 APPENDIX B — CCN T ABLES (cont) MAINTENANCE DISPLAY TABLES (cont) T AB LE DISPL A Y NAME RANGE UNIT S POINT NAME WRITE ST A TUS PRESBLDG Building Pressure "H2O BP Econo Damper Current P os .
160 APPENDIX B — CCN T ABLES (cont) MAINTENANCE DISPLAY TABLES (cont) TIME SCHEDULE CONFIG TABLE Allowable Entries: Da y not se lected = 0 Day selected = 1 T AB LE DISPL A Y NAME RANGE UNIT S POINT NAME WRITE ST A TUS TESTCOOL Compressor A1 Relay ON/OFF CMP A1T ST test Compressor A2 Relay ON/OFF CMP A2T ST test Min.
161 APPENDIX C — VFD INFORMA TION On variable air volume un its with optional VFD , the supply fan speed is controlled by a 3-phase VFD. The VFD is located in the supply fan section b ehind a removable panel. The VFD speed is controlled directly by the Comfort Link™ controls through a 4 to 20 mA si gnal based on a supply duc t pressure sensor .
162 APPENDIX C — VFD INFORMA TION (cont) Table B — VFD Configurations VFD Operation — The VFD keypad is shown in Fig. B. The function of SOFT KEYS 1 and 2 change depending on what is displayed on the screen. The function of SOFT KEY 1 matches the word in the lower left-hand box on the display screen.
163 APPENDIX C — VFD INFORMA TION (cont) 4. Use the UP or DOWN keys to highlight the desired parameter and press EDIT (SOFT KEY 2). 5. Use the UP or DOWN keys to change the value of the parameter . 6. Press SA VE (SOFT KEY 2) to store the modified value.
164 APPENDIX C — VFD INFORMA TION (cont) CHANGED P ARAMETERS MODE — The Ch ange d P ar am - eters mode is used to view and edit recently changed parameters on the drive. T o view the changed parameters, perform the following procedure: 1. Select MENU (SOFT KEY 2).
165 APPENDIX C — VFD INFORMA TION (cont) 7. Use the UP or DOWN keys to high light DA TE FOR- MA T and press SEL (SOFT KEY 2). Use the UP or DOWN keys to change the parameter setting. Press OK (SOFT KEY 2) to save the configuration and return to the Clock Set menu.
166 APPENDIX C — VFD INFORMA TION (cont) Table C — Fault Codes FAU LT CODE F A UL T NAME IN P ANEL DESCRIPTION AND RECOMME NDED CORRECTIVE A C TION 1 O VERCURRENT Output current is excessive .
167 APPENDIX C — VFD INFORMA TION (cont) Table D — Alarm Codes *This alar m is not indicated by a relay output, e ven when the re lay output is configured to indi cate alarm conditions, paramete r 1401 RELA Y OUT - PUT = 5 (ALARM) or 16 (FL T/ALARM).
168 APPENDIX C — VFD INFORMA TION (cont) MA I N F AN R E PL A C EM E N T — The main coo ling fan of the VFD has a life span of about 60,000 op erating hours at maximum rated operating temperature and drive load.
169 APPENDIX C — VFD INFORMA TION (cont) Fig. F — Internal Enclosure Fan Replacement A48-7716.
170 APPENDIX D — MODE SELECTION PROCESS The following section is to be used in conjunction with Fig. 4 on page 34. T o help determine why the unit controls are in a certain mode, the programming logic is provided below . The software will proceed, step by step, until a mode is reached.
171 APPENDIX E — UPC OPEN CONTROLLER The following section is used to configure the UPC Open. The UPC Open controller is mounted in a separate enclosure below the main control box. T o Address the UPC Open Contr oller — The user must give th e UPC Open controller an address that i s unique on the BACnet* network.
172 APPENDIX E — UPC OPEN CONTROLLER (cont) Configuring the B AS P or t for B A Cnet MS/ TP — Use the same baud rate and communication settings for all controllers on the network segment. The UPC Open controller is fixed at 8 data bits, No Parity , and 1 S top bit for this protocol's communications.
173 APPENDIX E — UPC OPEN CONTROLLER (cont) T o install a BT485 terminator , push the BT485 terminator , on to the BT485 connector located near the BACnet connector . NOTE: The BT485 terminator has no polarity associated with it. T o order a BT485 terminato r , consult Commercial Products i-V u ® Open Control System Master Prices .
174 APPENDIX E — UPC OPEN CONTROLLER (cont) Table D — Open System Wiring Specification s and Recommended Vendors LEGEND Local access to the UPC Open — T he user can use a BACview 6 handheld keypad display unit or the V irtual BACview software as a local user interface to an Open control- ler .
175 APPENDIX E — UPC OPEN CONTROLLER (cont) Configuring the UPC Open Contr oller's Prop- erties — The UPC Open device and Comfort Link™ con- trols must be set to the same CCN Address (Element) number and CCN Bus number . The factory default settings for CCN Element and CCN Bus number are 1 and 0 respectively .
176 APPENDIX E — UPC OPEN CONTROLLER (cont) NETWORK POINTS LIST See legend on page 182. BA CNET OBJECT ID POINT NAME READ ONL Y UNITS DEF A UL T VA L U E RANGE BA CNET OBJECT NAME UNIT POINT AV : 9 .
177 APPENDIX E — UPC OPEN CONTROLLER (cont) NETWORK POINTS LIST (cont) See legend on page 182. BACN E T OBJECT ID POINT NAME READ ONL Y UNITS DEF A UL T VA L U E RANGE BA CNET OBJECT NAME UNIT POINT AV : 6 1 Dmd Level(+) Hi Cool ON W °^F 0.5 0.5-20 dmdhcon_1 DMDHCON AV : 6 2 Dmd L e vel(+) Hi Heat ON W °^F 0.
178 APPENDIX E — UPC OPEN CONTROLLER (cont) NETWORK POINTS LIST (cont) See legend on page 182. BACN E T OBJECT ID POINT NA ME READ ONL Y UNITS DEF A UL T VA L U E RANGE BA CNET OBJECT NAME UNIT POIN.
179 APPENDIX E — UPC OPEN CONTROLLER (cont) NETWORK POINTS LIST (cont) See legend on page 182. BA CNET OBJECT ID POINT NA ME READ ONL Y UNITS DEF A UL T VA L U E RANGE BA CNET OBJECT NAME UNIT POINT.
180 APPENDIX E — UPC OPEN CONTROLLER (cont) NETWORK POINTS LIST (cont) See legend on page 182. BA CNET OBJECT ID POINT NAME READ ONL Y UNITS DEF AUL T VA L U E RANGE BAC N E T OBJECT NAME UNIT POINT.
181 APPENDIX E — UPC OPEN CONTROLLER (cont) NETWORK POINTS LIST (cont) See legend on page 182. BACN E T OBJECT ID POINT NAME READ ONL Y UNITS DEF A UL T VA L U E RANGE BAC N E T OBJECT NAME UNIT POI.
182 APPENDIX E — UPC OPEN CONTROLLER (cont) NETWORK POINTS LIST (cont) LEGEND BA CNET OBJECT ID POINT NAME READ ONL Y UNITS DEF A UL T VA L U E RANGE BA CNET OBJECT NAME UNIT POINT BV :1052 F ilter .
183 INDEX Accessory control components 124 Accessory installation 7 Accessory Navigator™ display 4, 124 Airflow control during fire-smoke modes 66 Alarm output 31 Alarms and alerts 93 Alert limit co.
Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No .
Manufacturer reserves the right to disco ntinue, or change at any time, specifications or de signs without notice and without inc urring obligations. Catalog No .
CL-2 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -.
CL-3 ITEM EXP ANSION RANGE D EF A UL T ENTR Y BP BUILDING PRESS. CONFIG BP .CF Building Press. Config 0 -2 0 BP .RT Bldg.Pres .PID Run Rate 5-120 sec 10 BP .P Bldg. Press. Prop . Gain 0-5 0.5 BP .I Bldg.Press.Integ.Gain 0-2 0.5 BP .
CL-4 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -.
CL-5 ITEM EXP ANSION RANGE D EF A UL T ENTR Y SW .LG SWITCH LOGIC: NO / NC FTS.L Filter Status Inpt-Clean Open/Close Open IGC.L IGC Feedbac k - Off Open/Close Open RMI.L RemSw Off-Unoc-Str t-NoOv Open/Close Open ECS.L Economizer Switch - No Open/Close Open SFS.
Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No .
An important point after buying a device Carrier WEATHERMAKER 48/50AJ (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Carrier WEATHERMAKER 48/50AJ yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Carrier WEATHERMAKER 48/50AJ - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier WEATHERMAKER 48/50AJ you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier WEATHERMAKER 48/50AJ will certainly help you make a decision on the purchase.
If you already are a holder of Carrier WEATHERMAKER 48/50AJ, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Carrier WEATHERMAKER 48/50AJ.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier WEATHERMAKER 48/50AJ. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier WEATHERMAKER 48/50AJ along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
