Instruction/ maintenance manual of the product 50VQP084-300 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 . 04-53 500080-01 Printed in U .S .A. Form 50VQP-C1SI Pg 1 11-10 Replaces: New Installation, Star t-Up , and Ser vice Instructions CONTENTS Page SAFETY CONSIDERA T IONS .
2 Follow all safety codes. W e ar safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and the National Electrical Code (NEC, U.
3 Table 1 — 50VQP Unit Physical Data LEGEND NO TES: 1. All units hav e grommet and spring compressor mou ntings, and 2.2 cm and 3.5 cm electrical knockouts .
4 Fig. 2 — 50VQP084-150 Un it Dimensi ons CONNECTIONS 50VQP084-12 0 50VQP150 W ater Inlet (See Note 7) 1 1 / 2 in. FPT 2 in. FPT W ater Outlet (See Note 7) 1 1 / 2 in. FPT 2 in. FPT Condensate D rain (See Note 8) 1 in. FPT 1 in. FPT High V oltage Access (See Note 9) 1 3 / 8 in.
5 Fig. 3 — 50VQP168-300 Unit Dimensions CONNECTIONS 50VQP168- 240 50VQP30 0 W ater Inlet (See Note 7) 2 in. FPT 2 1 / 2 in. FPT W ater Outlet (See Note 7) 2 in. FPT 2 1 / 2 in. FPT Condensate Drain (See Note 8) 1 in. FPT 1 in. FPT High V oltage Access (See Note 9) 1 3 / 8 in.
6 PR O T EC T I O N — Once the units are properly positioned on the jobsite, they must be covered with either a shipping carton, vinyl film, or an equivalent protective covering.
7 4. Remove 4 bolts and take blower glides out. See Fig. 7. 5. Attach blower glides to blower bottom load brackets as shown in Fig. 8. Use bottom set of holes on blower bot- tom load brackets. The blower shaft should be sitting di- rectly on top of the blower glides.
8 12. Reattach blockoff air handler as shown in Fig . 15. 13. Put 3 panels back onto unit. See Fig. 16. Sound minimization is achieved by enclosing the unit with- in a small mechanical room or a closet. The following are addi- tional measures for sound control.
9 4. Loosen belt tension and take belt of f. See Fig. 20. 5. Remove bolt-belt adjustment assembly . See Fig. 20. 6. Move bolt-belt adjustment as sembly to opposite side and reattach. See Fig. 21. 7. Put belt back on and tighten. Put control box cover and motor cover on return side.
10 Each unit must be installed with its own individual trap, vent and means to flush or blow out the condensate drain line. Do not install units with a common trap or vent. See Fig. 25. Consider the following: • Units are typically installe d directly above each other on successive floors with condensat e drains located near the units.
11 • Boiler drains and oth er valves should be connected using a “T” connector to allow acid flushing for the heat exchanger . • Do not overtighten connections. • Route piping to avoid serv ice access areas to unit. • Use PVC SCH80 or copper piping material.
12 Table 2 — Water Quality Guideline s LEGEND *Heat e xchan ger materials co nsidered are copper , cupronic kel, 304 SS (stain - less stee l), 316 SS , titaniu m. †Closed recircul ating system is id entified by a closed pressu rized piping syst em.
13 Fig. 27 — 50VQP0 84-168 Unit with Complete C Control (Typical) a50-8438 NO TES: 1. Compressor and blow er motor thermally protected inter nally . 2. All wiring to the unit must comply with N EC (N ational Electr ical Code, U .S.A.) and local codes.
14 NO T ES: 1. Compressor and blower motor thermally protected internally . 2. All wiring to the unit must comply with NEC (National Electr ical Code) and local codes. 3. 380/420-v transf ormers will be connected fo r 380-v operation. F or 420-v operation, dis- connect VIO lead at L1, and attach BRN lead to L1.
15 Y W O G R C AL1 AL2 A CR CMP1 FA N PWR HS1/EXH/RVS PREMIER LINK CR COMPLETE C CONTROL J4 J6 J5 J8 J1 PWR S P S A L W CMPSAFE T T T Y1 G R C AL1 CMP1 FA N PWR PREMIER LINK DELUXE D CONTROL J4 J8 J1 PWR CMPSAFE HS2 HS1 CMP2 Y2 W1 O/W2 J6 J5 S P T S A T L W T LEGEND NO TE: Rev ersing valve is on in Cooling mode.
16 Table 3 — 50VQP Unit Electrical Data — Standa rd Unit LEGEND NO TES: 1. HACR circuit break er in U .S.A. only . 2. All fuses Class RK-5. Table 4 — 50VQP Unit Electrical Data — Dual Poi nt Power Unit LEGEND NO TES: 1. HACR circuit break er in U .
17 Step 9 — Field Contr ol Wiring TH E R M OS T A T C O N N EC T I O NS — The thermostat should be wired directly to the Aquazone™ control board. See Fig. 27-31. W A TE R FREEZE PROTECTION — The Aquazone control allows the field selection of source fluid freeze protection points through jumpers.
18 9. Condensate line is ope n and correctly pitched. 10. T ransformer switched to lowe r voltage tap if necessary . 1 1. B lower rotates freely — shipping support is removed. 12. Blower speed is on correct setting. 13. Air filter is clean and in position.
19 Table 5 — 50VQP084 Blowe r Performance Data LEGEND NO TES: 1. Unit is factory shippe d with standard stat ic sheave and drive at 2.5 turns open. Other speeds require fi eld selection. 2. For applications requiring higher stat ic pressures, contact your local Carrier rep- resentative.
20 Table 6 — 50VQP096 Blow er Performance Data LEGEND NO TES: 1. Unit is f actor y shipped with standard sta tic sheav e and drive at 2.5 turns open. Other speeds requ ire field sel ection. 2. F or applications requiring hi gher static pressures , contact you r local Carrier repre- sentativ e.
21 Table 6 — 50VQP096 Blo wer Performanc e Data (cont) LEGEND NO TES: 1. Unit is f actor y shipped with standard stati c sheav e and drive at 2.5 turns open. Other speeds requ ire field sel ection. 2. F or applications requiring hi gher static pressures , contact you r local Carrier repre- sentativ e.
22 Table 7 — 50VQP120 Blow er Performance Data LEGEND NO TES: 1. Unit is factory shippe d with standard stat ic sheave and drive at 2.5 turns open. Other speeds require fi eld selection. 2. For applications requiring higher stat ic pressures, contact your local Carrier rep- resentative.
23 Table 7 — 50VQP120 Blo wer Performanc e Data (cont) LEGEND NO TES: 1. Unit is factory shippe d with standard stat ic sheave and drive at 2.5 turns open. Other speeds require fi eld selection. 2. For applications requiring higher stat ic pressures, contact your local Carrier rep- resentative.
24 Table 8 — 50VQP150 Blow er Performance Data LEGEND NO TES: 1. Unit is factory shippe d with standard stat ic sheave and drive at 2.5 turns open. Other speeds require fi eld selection. 2. For applications requiring higher stat ic pressures, contact your local Carrier rep- resentative.
25 Table 8 — 50VQP150 Blo wer Performanc e Data (cont) LEGEND NO TES: 1. Unit is factory shippe d with standard stat ic sheave and drive at 2.5 turns open. Other speeds require fi eld selection. 2. For applications requiring higher stat ic pressures, contact your local Carrier rep- resentative.
26 Table 9 — 50VQP168 Blow er Performance Data LEGEND NO TES: 1. Unit is factory shippe d with standard stat ic sheave and drive at 2.5 turns open. Other speeds require fi eld selection. 2. For applications requiring higher stat ic pressures, contact your local Carrier rep- resentative.
27 Table 10 — 50VQP1 92 Blower Perfo rmance Data LEGEND NO TES: 1. Unit is f actor y shipped with standard stati c sheav e and drive at 2.5 turns open. Other speeds requ ire field sel ection. 2. F or applications requiring hi gher static pressures , contact you r local Carrier repre- sentativ e.
28 Table 10 — 50VQP192 Blower Performance Data (cont) LEGEND NO TES: 1. Unit is f actor y shipped with standard sta tic sheav e and drive at 2.5 turns open. Other speeds requ ire field sel ection. 2. F or applications requiring hi gher static pressures , contact you r local Carrier repre- sentativ e.
29 Table 11 — 50VQP2 40 Blower Perfo rmance Data LEGEND NO TES: 1. Unit is f actor y shipped with standard stati c sheav e and drive at 2.5 turns open. Other speeds requ ire field sel ection. 2. F or applications requiring hi gher static pressures , contact you r local Carrier repre- sentativ e.
30 Table 11 — 50VQP240 Blower Performance Data (cont) LEGEND NO TES: 1. Unit is f actor y shipped with standard sta tic sheav e and drive at 2.5 turns open. Other speeds requ ire field sel ection. 2. F or applications requiring hi gher static pressures , contact you r local Carrier repre- sentativ e.
31 Table 12 — 50VQP3 00 Blower Perfo rmance Data LEGEND NO TES: 1. Unit is f actor y shipped with standard stati c sheav e and drive at 2.5 turns open. Other speeds requ ire field sel ection. 2. F or applications requiring hi gher static pressures , contact you r local Carrier repre- sentativ e.
32 Table 12 — 50VQP300 Blower Performance Data (cont) LEGEND NOTES: 1. Unit is f actor y shipped with standard sta tic sheav e and drive at 2.5 turns open. Other speeds requ ire field sel ection. 2. F or applications requiring hi gher static pressures , contact you r local Carrier repre- sentativ e.
33 FIELD SELECT ABLE INPUTS Jumpers and DIP (dual in-line package) switches on the control board are used to customize unit operation and can be configured in the field.
34 Auto Dehumidification Mod e or High Fan Mode — Switch 7 provides selection of auto dehu midification fan mode or high fan mode. In auto dehumidification fan mode the fan speed relay will remain off during cooling stage 2 if terminal H is active. In high fan mode, the fan enable and fan speed relays will turn on when terminal H is active.
35 Table 15 — 50VQP Unit Operating Limits LEGEND *Requires optional insulation package when operating below the dew point. †With antifreeze, optional e xtended range insulation and low tem- perature cutout jumper clipped for antifreeze . If the suction pressure does not drop and the dischar ge pressure does not rise to normal levels: 1.
36 Table 17 — Coaxial Water Pressure Drop NOTE: If air is purged from the system while using a 250 mm PVC fl ush tank, only a 2 5 to 50 mm level drop will be noticed since liquids are incompressible. If the level drops more than this, flushin g should continue since air is still being compressed in t he loop.
37 Units with Aquazone™ Complete C Contr ol ST ANDBY — Y and W terminals are not active in Standby mode, however the O and G terminals may be active, de- pending on the application. The compressor w ill be off. COOLING — Y and O terminal s are active in Cooling mode.
38 Table 20 — Complete C Control Current LED Status and Alarm Relay Oper ations LEGEND NO TES: 1. Slow flash is 1 flash e very 2 seconds. 2. F ast flash is 2 flashes every 1 second. 3. EXAMPLE: “Flashing Code 2” is represented b y 2 f ast flashes follo wed by a 10-second pause .
39 Retry Mode — In Retry mode, the st atus LED will start to flash slowly to signal that the control is trying to recover from an input fault. The control will stage of f the outputs and try to again satisfy the thermostat used to terminal Y . Once the ther- mostat input calls are satisfied, the control will continue normal operation.
40 Drain condenser and flush with clean water . Follow acid manufacturer ’ s instructions. Checkin g System Char ge — Units are shipped with full operating charge. If rechar ging is necessary: 1. Insert thermometer bulb in insulating rubber sleeve on liquid line near filter drier .
41 a50-8163 LEGEND Fig. 39 — FP1 and FP2 Thermistor Location CO AX — Coaxial Heat Exchanger Airflow Refrigerant Liquid Line F low S UCTIO N COMPRE SS OR DI S CHARGE COAX EXP AN S ION VA LV E FP 2 .
42 Table 23 — Troubleshooting LEGEND F A UL T HEA TING COOLING P OSSIBLE CA USE SOLUTION Main Power Problems X X Gr een Status LED Off Chec k line voltage circuit breaker and disconne ct. Check for line v oltage bet ween L1 and L2 on th e contacto r .
43 Table 23 — Troubleshooting ( cont) LEGEND F A UL T HEA TING COOLING P OSSIBLE CA USE SOLUTION Only Compressor Runs X X Ther mo stat wir ing Check G wir ing at heat pump. Jumper G and R for fan operation. Check Y and W wiring at hea t pump. J umper Y and R for compressor operatio n in T est mode.
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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. PC 111 Catalog No .
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 50VQP084-300 (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 50VQP084-300 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 50VQP084-300 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 50VQP084-300 you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 50VQP084-300 will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 50VQP084-300, 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 50VQP084-300.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 50VQP084-300. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 50VQP084-300 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
