Carrier 38QF- Manuals

Page 2 - Step 2 — Mount Outdoor Heat Pump; CONCRETE MOUNTING PAD; Fig. 2 — Accessory Mounting Rack

Top Cover Removal — Top cover can be removed for wiring or servicing heat pump. Loosen decorative strip and slide down off screw heads. Remove 3 screws in connector plate and 2 screws on front of unit. Loosen remaining 4 screws. Lift top from unit (see Fig. 1). Step 2 — Mount Outdoor Heat Pump ON T...

Page 3 - Step 3 — Make Piping Connections; Ve

ON THE ROOF; MOUNT UNIT ON A LEVEL PLATFORM OR FRAME: Proper precaution must be taken for support of unit in roof design. Elevate unit for proper clearance as described under ground installation above. Plan roof design and water drainage to prevent unit from setting in water. Flash all roof openings...

Page 5 - Splicii Cfjnnpctions; Fig. 4 — Line Power Connections

Table 4 — Electrical Data (60 Hz) OPER COMPR BRANCH CIRCUIT UNIT 38QF V/PH VOLTAGE* FAN FLA Min Wire Max Wire Min Gnd Max Fuse or HACR Type Ckt Bkr Amps** MCA Max Min LRA RLA (AWG)t (ft) Wire Size$ 018 230/1 50 10.8 14 30 14 25 14.6 024 54 13.0 12 41 12 30 17.3 030 208-230/1 254 197 69 17.7 1.1 10 4...

Page 7 - a l l; Refrigerant Charging; Fig. 6 — 38QF Refrigerant Flow Diagrams

MOUNT OUTDOOR THERMOSTAT on control ring, to the left of the low-voltage control connec tion. See Fig. 1. Attach brackets with short sheet metal screws to avoid contact with coil. Leave capillary tube coiled in control compartment making sure it is clear of all electrical connections and sharp meta...

Page 8 - 8HQ,VQ042 Cooling Cycle Charging Chart

To check and/or adjust charging during cooling season, use correct Cooling Cycle Charging Chart (Fig. 7, 9, 11, 13, 15, 17, 19) and follow Charging Chart Method below. The charging chart may also be used as an alternate method of recharging system. To check system operation during heating cycle, use...

Page 9 - cn; tc; I I 5 F; ui; Cooling Cycle Charging Chart

320 300 280 260 240 in a. lU > % o > □: UJ to o ■D O _l ^ 220 15 cn </) UJ tc Q. 200 180 160 COOLING CYCLE m CFM-860 :WET BULB TEMP AIR ENT INDOOR UNIT :75F 62 f : 67 F 85 F^ 172 F I I 5 F 105 F 95 F: DRY BULB TEMP AIR ENT OUTDOOR UNIT 66 68 70 72 74 76 78 80 82 84 86 88 PRESSURE AT SUCTION...

Page 10 - CO

'®° 70 74 78 82 86 90 PRESSURE AT SUCTION SERVICE VALVE (PSIG) Fig 13 — 38QF036 with 28HQ.VQ042, 40AQ036 or 40QB/QH042 Cooling Cycle Charging Chart Fig. 14 — 38QF036 with 28HQ,VQ042, 40AQ036 or 40QB/QH042 Heating Cycle Operation Check Chart 340 o 320 </) 0. UJ > % UJ o > q : UJ CO ao UJ o: ...

Page 12 - Fig. 21 — Component Location

Compressor Removal — See Table? for com pressor information and Fig. 21 for component location. Shut off power to unit. Remove refrigerant from unit using refrigerant removal methods de scribed in Carrier Standard Service Techniques Manual, Chapter 1, Refrigerants. Be sure system pressure is 0 psi...

Page 14 - result in electric shock or injury from rotating; valve base in wet rag. Heat and apply low-

RETAINER rLARE NUT FLARE CONNECTION Fig. 22 — AccuRater™ (Bypass Type) Components 5. Slide piston out by inserting a small soft wire, with small kinks, thru metering hole. Ensure metering hole, sealing surface around piston cones and fluted portion of piston are not damaged. 6. Clean piston refriger...

Page 15 - Coil Cleaning

COIL REPAIR — A flare-union coupling is used for E-coil repair. A kit is available, with instructions, thru Carrier Service Parts. COMPRESSOR contains factory oil charge. If oil requires replenishment, see Table 7 for oil recharge and Carrier Standard Service Techniques Manual, Chapter 1, Refrigeran...

Page 16 - TROUBLESHOOTING CHART — COOLING CYCLE; ON

Page 17 - TROUBLESHOOTING CHART — HEATING CYCLE

Page 18 - For replacement items use Carrier Specified Parts.

For replacement items use Carrier Specified Parts. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Tab 5a 5a Form 38QF-2SI Supersedes 38QF-1 SIM Printed in U.S.A. 4-83 PC 101 Catalog No. 563-8...