Stimmen - 2, Durchschnittliche Bewertung: 5
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Anleitung Zusammenfassung
Construct platform using drainage and clearance recommendations above. Locate and construct platform to avoid possible transfer of unit vibration to structure. ON THE ROOF: MOUNT OUTDOOR COIL ON A LEVEL PLATFORM OR FRAME. Unit must be elevated for proper clearance as described under ground installation above. Roof design and water drainage must be planned to prevent units from setting in water. Flash all roof openings to prevent leaks. Step 3 — Mount Indoor Compressor Section on a rigid, solid platform or concrete floor. Insert 1/4-in. asphalt impregnated felt pad (factory supplied) between unit basepan and mounting surface to provide full unit support and for vibration attenuation. (Do not use vibration isolator under corners of basepan.) Step 4 — Make Piping Connections — The 38HQ units can be connected to indoor fan coil using Carrier accessory tubing package or field-supplied tubing of refrigerant grade. See Tables 1 and 2 (with notes) for unit piping connection type, size and line size recommendations and Table 4 for accessory tubing sizes. Maximum allowable system liquid line length is 100 feet. Maximum vapor line Table 4 — Accessories PART NO DESCRIPTION 38CQ900081 Honeywell Thermostat and Subbase — Automatic Changeover 38CQ900111 Honeywell Thermostat and Subbase — Manual Changeover 38CQ900211 White Rodgers Thermostat and Subbase — Manual Changeover 38CQ900152 Solid State Time Guard II — 24 v (six 38CQ900141) 38HQ900011 Hot Shot Domestic Water Pre-Heater 38CQ900172 Optimizer Control (six 38CQ900161, ref HH22AQ110) 38RQ900091 Optimizer II Control (use with Outdoor Thermostat HH22AG110) 38RQ900032 Outdoor Thermostat — adjustable control for strip heaters, 48-in long Cap Tube 38HQ900002 Outdoor Thermostat — adjustable control for strip heaters; 36-in long Cap Tube 38RQ900012 Supplemental Heat Relay (six 38RQ900001 ) 38RQ900072 Heat Pump Mounting Stand (six 38RQ900061) 38RQ900081 Biflow Liquid Filter-Drier (six KH45LD077) 28VQ900011 Twelve 3/4- x 1-1/8 in Connection Adapters for 38HQ146 TUBING PACKAGES TUBING LENGTH (ft) LIQUID LINE OD (in.) SUCTION LINE OD (in.) COMPRESSOR SECTION 38HQ 38LS934151 38LS934201 38LS934251 38LS934301 38LS934351 38LS934401 38LS934501 15 20 25 30 35 40 50 3/8 3/4 120, 127, 134 38LS978151 38LS978201 38LS978251 38LS978301 38LS978351 38LS978401 38LS978501 15 20 25 30 35 40 50 ...................... 3/8 7/8*t 140, 146 *Swaged at each end down to 3/4 inch fCapacity reduction may occur when 7/8-in accessory tubing is used on 38HQ146 length from compressor section to indoor coil is 50 feet. Maximum vapor line length from compressor section to outdoor coil is 50 feet. A capacity reduction will result if accessory tubing is used in 38HQ146 systems. For example, when a 25-ft, 7/8-in. accessory tubing package is used, there will be a capacity reduction of 1-1/2%. For maximum capacity, use 1-1/8 in. vapor line as recommended in Tables 1 and 2. When other than 25 ft of interconnecting piping is used, follow special requirements described in Refrigerant Charging. Do not use less than 10 ft of liquid line. Do not cut accessory 7/8-in. vapor line. Bend or coil to fit. Do not use damaged or contaminated tubing. Always evacuate or purge indoor coil, compressor section and tubing system (use field-supplied refrigerant, not unit refrigerant). When making tubing connections, be sure to provide clearance at unit for electrical connections and follow tubing isolation method, Step 1, page 3. 5 REPLACE THE ACCURATER™ REFRIGERANT CONTROL PISTON IN THE INDOOR AND OUTDOOR COIL AS REQUIRED before connecting refrigerant lines. See Table 3 and the notes under the table for the pistons used in the different system combinations. For piston replacement instructions, see AccuRater Servicing on page 16. CONNECT REFRIGERANT LINES to fittings on indoor and outdoor sections, Fig. 1, 2 and 6. Indoor compressor section has 2 Compatible Fitting vapor line connections. Outdoor coils and indoor fan coils have Compatible Fitting vapor line connection and liquid line flare connection. Connect vapor line from outdoor coil to indoor compressor section, and from compressor section to indoor fan coil. Section vapor line as required (Fig. 6). Use correct compressor section vapor line connection to indoor fan coil and outdoor coil. Unit Compatible Fitting(s) permits mechanical or sweat connection as described below. When using 1-1/8 in. field-supplied vapor line (38HQ146 Systems), remove vapor line adapters (4) shipped in compressor section. Sweat connect 1-1/8 in. end of adapter to each end of vapor lines. Connect 3/4-in. end of adapters to vapor line Compatible Fitting(s) on outdoor coil, indoor compressor section and indoor fan coil. When a 7/8-in. field-supplied vapor line is used on 38HQ140, 4 field-supplied 3/4-in. to 7/8-in. vapor line adapters must be provided (not required if 7/8-in. 38CQ accessory tubing is used). Flare and connect liqu...