Carrier 50QQ- Manuals

Page 2 - Table 1—Physical Data and bimensions; Step 2—Mount Unit; Fig. 2—Pad Dimensions; Step 3—Make Ductwork Connections

Table 1—Physical Data and bimensions MODEL 50QQ 018 024 030 036 042 048 060 REFRIGERANT (R-22) Operating Charge (lb) Refrigerant Control 7 lbs 4 oz 6 lbs 8 oz 8 lbs 0 oz 7 lbs 4 oz Piston 8 lbs 2 oz 9 lbs 0 oz 9 lbs 0 oz SHIPPING WEIGHT (lb) 323 1 329 1 346 1 357 | 402 | 445 | 484 DIMENSIONS (in.) A...

Page 3 - Fig. 3—Heat Pump Mounting Frame

I I =\ = = = ^ 305 mm (12") TO 610 mm (24") (4) REQ ^ ----- —--------------------------------------------------------------------- '(411") (2) REQ ' I ---------------1 I 959mm (37|")(2)REQ r 38 mm ( 1 - 5 ) 3 " ^ I--------------- ------- -| 959mm (375 )(l) REQ. gj I I - |-^ 406 m...

Page 4 - Table 2—Accessories; Step 4—Provide for Cooling Cycle condensate Disposal-; Condensate may be drained directly onto gravel apron or; Fig. 4—Typical Installation; CONNECT DRAIN LINE to rubber condensate drain fit; Fig. 5—Condensate Drain and Trap Details

Table 2—Accessories PARAT NO. DESCRIPTION MODEL 50QQ 99TZ900521 Thermostat 1 -stage cooling, automatic changeover Subbase 2-stage heating, Carrier, Honeywell All 99T2900571 Thermostat 2-stage cooling, manual changeover Subbase 2-stage heating, Carrier, Honeywell All 50LQ90002106 Solid-State Time Gua...

Page 5 - step 5—Make Electrical Connections; Fig. 6—Control Section

m step 5—Make Electrical Connections —Install field wiring in compliance with loced and national fire, safety and electri cal codes. Be sure voltage to unit is within ± 10% of volt age indicated on nameplate. Contact local power company for correction of improper line voltage. Operation of unit on...

Page 6 - A CAUTION; Fig. 7—Line Power Connections

Table 4—Air Delivery (Cfm) Performance MODEL 50QQ UNIT VOLTAGE BLOWER MOTOR SPEED COIL EXTERNAL STATIC PRESSURE (in. wc) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Low Dry ___ — ___ ___ — 800 730 640 _ — 018-10 230 Wet — _ — — — 750 680 550 — — — High Dry _ — — — — 820 680 550 — — Wet — — — — 785 6...

Page 7 - Fig. 9—Control Connections

THERMOSTAT 8 SUBBASE (SEE BELOW) 0- & B- 0 - 0 - 0 - UNIT CONTROL WIRING TERMINAL BOARD THERMOSTAT a SUBBASE 0) <g> ^0 - 0 ) COOLING AND ONE-STAGE HEATING (without Electric Heater) UNIT CONTROL WIRING TERMINAL BOARD ODT—Outdoor Thermostat Assose HR —Heater Relay COOLING AND TWO-STAGE HEATI...

Page 9 - Fig. 10—Refrigerant Flow Diagrams; A WARNING

COOLING STRAINERS HEATING COOLING STRAINERS HEATING © INDOORFAN COOLING CYCLE A87291 Fig. 10—Refrigerant Flow Diagrams Table 5—Service Data MODEL 50QQ 018 024 030 036 042 048 060 R-22 CHARGE* (lb) 7 lbs 4 oz 6 lbs 8 oz 8 lbs 0 oz 7 lbs 4 oz 8 lbs 12 oz 9 lbs 0 oz 9 lbs 0 oz Piston Htg/cig. 52/42 61/...

Page 10 - Table 6—Field Charging Table—Fixed Restrictor

Table 6—Field Charging Table—Fixed Restrictor HEATING OPERATING PRESSURES PSIG (Pressures at High and Low Side Service Ports) MODEL INDOOR OUTDOOR TEMPERATURE (F) DRY BULB 50QQ DRY BULB (F) 60 50 40 30 20 10 0 -10 65 High 217 202 189 178 168 157 149 140 Low 77.2 65 53.8 43.7 34.7 26.8 19.7 12.6 018 ...

Page 11 - thermometers. They are not adequate for this type of; Compressor Removal—; Table 7—Compressor Data

2. Start unit and allow to operate until operating condi tions stabilize and pressures level out. 3. Evaluate system performance and refrigerant charge level by determining following conditions: a. High- and low-side pressure gage reading. b. Dry-bulb temperature of inlet air at outdoor coil. c. Dr...

Page 12 - Fig. 12—Compressor Section; Filter Drier—

FLARE NUT STRAINER COIL COOLING PISTON IDENTIFICATION RUBBER 0-RING STAMPED ARROW ON COUPLING BODY TOWARD INDOOR COIL) HEATING FLOW RUBBER 0-RING STRAINER n U t '^^ RETAINER A87292 Fig. 11—Metering Device (Dual-Piston) Components SUCTIONSCHRADERFITTING ACCUMULATOR COMPRESSOR HOLDDOWN BOLT Fig. 12—Co...

Page 13 - Indoor Coil; Condensate Drain—; ORIFICE RING; Outdoor Air Fan—; ime; Fig. 15—Fan and Motor

# FAN MOTOR BEARINGS are prelubricated for 3 years heavy duty or 5 years normal duty. Oiling holes are pro vided at each end of fan motor, remove fan motor and lubri cate motor with 32 drops (16 drops per hole) of SAE 10 nondetergent oil at intervals described below: a. Annually, when environment ...

Page 14 - Outdoor Coil—

Return Air Filter (Field Supplied)— Replace disposable filter 4 times a year, clean permanent filter a minimum of 4 times yearly or as required. Flush permanent filter with hot water, steam or soak in mild solution of soap or detergent and water. Allow filters to dry and replace. Refer to filter man...

Page 16 - Isalsa

TROUBLESHOOTING CHART-HEATING CYCLE POWEfI CinCU SUPPLEMENTAL HEAT RELAY ENERGIZED OR WIRED WRONG COMPRESSOR POWER SUPPn OPEN FAULTY START CAP OR RELAY ISINGLE PHASEl OR PTC INDOOR FANS CYCLING ON OVERLOAD OVERCHARGE OR NONCONDENSABLES IN SYSTEM RESTRICTED OR STUCKMETERING DEVICE LOW LINE VOLTAGE OH...