Instruction/ maintenance manual of the product 50RTG Carrier
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Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificati ons or des igns without notice an d withou t inc ur ring obligations.
2 Follow all safet y codes. W ea r safety glasses and w ork gloves. Use quenching cloth for brazing opera t i ons . Have fire extinguisher available. Read these instruct ions thoroughly and follow all warnings or cautions attached to the uni t.
3 IN SP EC T U NI T — T o prepare the unit for inst allation, com- plete the pr ocedures list ed below: 1. Compare the electrical data on the unit nameplate with ordering and shipping information to verify that the correct unit has been shipped. 2. V eri fy that the unit is t he correct model for the e ntering water tem perature of t he job.
4 A C D B RETURN AIR SUPPL Y AIR AIR FLOW SUPPL Y AIR RETURN AIR TOP VIEW FRONT VIEW SIDE VIEW CONDENSA TE DRAIN 1" FPT 5-13/16 9-13/16 E F ELECTRICAL & PIPE CHASE OUTSIDE AIR OPENING OUTSIDE AIR 50RTG UNITS DIMENSIONS (in.) ABCDE F Outs ide Air Opening Siz e Wat e r In/Out (FPT) 03/04 39.
5 C A B 14.00 (REF) 14.00 (REF) STRUCTURAL SUPPOR T CURB WALL ROOF DECK/ROOFING BASE P AN OF UNIT FLASHING 3-7/8" (TYP) REQUIREMENTS BY CONTRACTOR'S HEIGHT DETERMINED (TYP) G H K J E F (FIELD SUPPLIED) TRANSITION DET AIL 14-15/16 23.000 2.00 TYP .
6 Step 4 — Mounti ng the Unit — For proper opera- tion, units must be mounted on a roof curb as shown in Fig. 3. Follow these guidelines when installing the roof curb: 1. Set unit on curb. 2. Align unit so that its return a nd supply air direct ion match the return and supply air opening in the roof curb frame.
7 Step 7 — Ele ctrical Wiring All field installed wiring, including the electrical ground, MUST co mply w ith the Natio nal E lectri cal C ode (N EC) as well as appl icable local codes. In addition, all fi eld wiring must conform to the Class II temperature limitations described in the NEC.
8 SEE NOTE 5 SEE NOTE 6 NOTE 4 SEE Not Used R Status RV AL2 AL1 Relay Alarm A C JW1 LED Control Logic Microprocessor C G DC CO EH2 EH1 CO 24V P3 FP2 FP1 BRG T est Pins C P1 R O G W Y Y BR Not Used Dip.
9 Table 3 — 50RTG Elect rical Data LEGEND NO TE : Contact f ac tor y f or ov ersize blo wer motor electrical data. Table 4 — 50RT G03 Blowe r Performance LEGEND NO TES: 1. F an BHP includes drive losses. 2. Region “A” is s tandard dr ive pac ka ge.
10 Table 5 — 50RT G04 Blower P erformance LEGEND NO TES: 1. F an BHP includes drive losses. 2. Region “A” is s tandard dr ive pac ka ge. 3. Regions “B” and “C” require optional drive pac kages. 4. Region “D” represents ov ers ized motor and special shea ves.
11 Table 7 — 50RT G07 Blowe r Performance LEGEND NO TES: 1. F an BHP includes drive losses. 2. Region “A” is s tandard dr ive pac ka ge. 3. Regions “B” and “C” require optional drive pac kages. 4. Region “D” represents ov ers ized motor and special shea ves.
12 Table 9 — 50RTG10 Blower Performance LEGEND NOTES: 1. F an BHP includes drive losses. 2. Region “A” is standard drive pac kage. 3. Regions “B” and “C” require optional driv e packages. 4. Region “D” represents ov ersized motor and special sheav es.
13 Table 11 — 50RTG15 Blower Perf ormance LEGEND NO TES: 1. F an BHP includes drive losses. 2. Region “A” is s tandard dr ive pac ka ge. 3. Regions “B” and “C” require optional drive pac kages. 4. Region “D” represents ov ers ized motor and special shea ves.
14 Step 8 — Lo w V olta g e Wiring THERMOST A T CONNECTIONS — The thermostat should be wired directly to the Aquazone ™ control board. See Fig. 4 and 5. W A TER FREEZE PRO TECTION — The Aquazone control allows the field selection of source fluid freeze protection points through jumpers.
15 10. Syste m Controls: T o ensure that no catastrophic system failures occur, verify that system controls are funct ioning and that the sequencing is corr ect. 11 . Freeze Protection for W ate r System : V erify that f reeze protection is provided for the building loop water system when outdoor design conditions require it.
16 Boilerless Changeov er T emperature — Switch 8 on S1 pro- vides selection of boilerless changeover temperature set point. Select OFF for set point of 50 F or select ON for set point of 40 F . If switch 8 is set for 50 F , then the c ompressor will be used for heating as long as the FP1 is a bove 50 F .
17 NOTE: Three factors determine th e operating limits of a unit: (1) entering air temperature, (2) water t emperature and (3) ambient temper ature. Whenever any of these factors are at a minimum or maximum level, the other two factors must be at a normal level to ensure proper uni t operation.
18 6. Open the return valve to send a pressure surge through the loop to purge any air pockets in the piping system. 7. A noticeable drop in fluid level will be seen in the flush cart tank. This is t he only indication of air in the loop. NOTE: If air is purged from the system while using a 10 in.
19 OPERA TION P ower Up Mode — The unit will not operate until all the inputs, terminals and safety controls are ch ecked for normal operation. NOTE: The c ompressor will have a 5-minute an ti-short cycl e upon power up.
20 Table 19 — C Control Current LED St atus and Alarm Relay Operations LEGEND NO TES: 1. Slow flash i s 1 flash ev er y 2 seco nds. 2. F ast flash i s 2 flash es ev er y 1 second. 3. EXAMPLE: “ Flashi ng Code 2 ” is rep resent ed b y 2 f ast fl ashes f oll ow ed by a 10-sec ond pause.
21 Table 21 — Aquazone D Control Current LED Status and Alarm Relay Operations LEGEND NO TES: 1. If there is no f ault in memory , the F ault LED will flash code 1. 2. Codes will be displ ay ed with a 10-second F ault LED pause. 3. Slow flash is 1 flash e ver y 2 seconds.
22 Chec king System Charge — Units are shipped with full operating charge. If recharging is necessary: 1. Insert thermometer bulb in insulating rubber sleeve on liquid line near filter dri er . Use a digital t hermometer for all temperat ure measurement s.
23 SUCTION COMPRESSOR DISCHARGE COAX EXP ANSION VA LV E FP2 FP1 LIQUID LINE W A TER IN WA TER OUT CONDENSA TE OVERFLOW (CO) AIR COIL FREEZE PROTECTION W A TER COIL PROTECTION THERMISTOR ° F ° F AIR COIL LEGEND Fig.
24 Table 22 — Troubleshooting LEGEND RV — Rev ersing V alv e F A UL T HEA TING COOLING P OSSIBLE CA USE SOLUTION Mai n Po wer Proble ms X X Green Status LED Of f C hec k line voltage circuit bre aker and disc onnect. Check fo r line voltage betwee n L1 and L2 on the contacto r.
25 Table 22 — Troubleshooting (cont) LEGEND RV — Rev ersing V alve F A UL T HEA TING COOLING POSSIBLE CA USE SOLUTION Only Compr essor Runs X X T hermostat wiring Check G wiring at hea t pump. J umper G and R for f an operati on. X X F an motor relay J umper G a nd R f or f an operatio n.
Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificati ons or des igns without notice an d withou t inc ur ring obligations.
CL-1 50R TG ST ART -UP CHECKLIST CUSTOMER: ___________________________ JOB NA ME: _______________________________ ________ MODEL NO.:___________________________ SERIAL NO.
Manufacturer reser ves the right to dis continue , or chang e at any time, spec ifications or des igns witho ut not ice and withou t inc urrin g obligations.
An important point after buying a device Carrier 50RTG (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 50RTG 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 50RTG - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 50RTG you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 50RTG will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 50RTG, 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 50RTG.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 50RTG. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 50RTG 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
