Page 2 - AC
2 DIMENSIONS -- INDOOR NOTES: 1. Dimensions in [ ] are in millimeters.2. Direction of airflow. 3. Standard unit clearances are as follows: • 0 in. on top and rear • 3 in. on left side • 12 in. on right side • 36 in.on bottom (When facing unit discharge.) A08580 UNIT SIZE WEIGHT (lb) A B E F G Coolin...
Page 7 - Parts List; Indoor Unit; The following items are included with the indoor unit:; Table 1 – Installation Materials; Outdoor Unit; The following items are included with the outdoor unit:; Table 2 – Matched Systems; SYSTEM REQUIREMENTS; Clearances; Allow sufficient space around the indoor and outdoor unit for; Piping Lengths; Table 3 – Maximum Refrigerant Line Lengths; Pipe Sizes; Refer to table 4 for pipe sizes.; Table 4 – Pipe Sizes
7 These installation instructions cover the installation of the matchedsystems listed in table 2. Parts List Indoor Unit The following items are included with the indoor unit: Table 1 – Installation Materials Part No. Name of Part Qty. 1 Side Panels 2 2 Hex Head Bolts 4 3 Mounting Bracket 2 4 Piston...
Page 8 - Refrigerant Charge; Table 5 – Additional Charge; Metering Device; Table 6 – Accurator Sizes; Power and Connecting Cables -- Field Supplied; Control Wiring; User Interface -- Finished Goods Accessory; Table 7 – 38HDR / QRR Electrical Requirements
8 Refrigerant Charge The 38HDR and 38QRR units can be matched with multiple outdoor units and thus additional charge might be required whenmatched with the 40QAC or 40QAQ units. Table 5 – Additional Charge Additional Charge lb. (kg.) Unit Size 38HDR 38QRR 018 0.7 (0.32) 0.7 (0.32) 024 1.3 (0.59) 0.8...
Page 9 - INSTALLATION
9 Operating Range Ensure that the system operates within the application guidelinesshown in the following tables. Cooling operating range: Maximum Minimum DB _ F ( _ C) WB _ F ( _ C) DB _ F ( _ C) WB _ F ( _ C) Outdoor Unit 125 (51.7) --- 55 (12.8) --- Indoor Unit 95 (35) 71 (21.7) 67 (19.4) 57 (13....
Page 10 - NOTE; clearance is required in back of unit.
10 3. Mount Unit -- the installation location should have already been identified taking into account the piping length, wiring and piping,connections, and clearances. a. Use mounting template, included inside box, to locate mounting bolt holes, piping holes, electrical connec- tions, and accessory ...
Page 11 - INSTALL OUTDOOR UNIT; Mounting on Ground; CAUTION; Mounting Unit on Wall
11 When mounting brackets, select the proper type of hardware fromthe guidelines below. See Fig. 14 PERSONAL INJURY AND/OR EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in personal injury and / or equipment damage. Solid structure in ceiling MUST be used due to weight of the unit...
Page 12 - Connection at Outdoor Unit; Complete Outdoor Power and Control Wiring; WARNING
12 Complete Outdoor Refrigerant Piping Connec- tions Follow the following general guidelines: 1. Use refrigerant grade field – supplied tubing. Refer to Table 4 for the correct line sizes. 2. Do not use less than 10 ft (93.05 m) of interconnecting tubing. CAUTION ! UNIT DAMAGE HAZARD Failure to foll...
Page 13 - ELECTRICAL SHOCK HAZARD; Power Wiring
13 ! WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death.Before performing service or maintenance, be sure indoor unit main power switch is turned OFF and indoor blower has stopped.Lock out and tag switch with suitable warning label. Power Wiring 1...
Page 14 - ELECTRICAL DATA; Table 10 – 38HDR Electrical Data
14 ELECTRICAL DATA Table 10 – 38HDR Electrical Data 38HDR UNIT SIZE V --- PH --- Hz VOLTAGE RANGE* COMPRESSOR OUTDOOR FAN MOTOR MIN CKT AMPS FUSE/HACR BKR AMPS Min Max RLA LRA FLA NEC Hp kW Out 018 208/230 --- 1 --- 60 187 253 9.0 48.0 0.8 0.125 0.09 12.1 20 024 208/230 --- 1 --- 60 187 253 13.5 58....
Page 17 - Complete Indoor Piping; Connect Condensate Drain Line
17 Complete Indoor Piping The piping to the indoor unit can be routed from the back, side andtop. If the unit is being piped from the top or the side see note below. 1. On heat 40QAQ024 – 048, the cooling piston (indoor) is shipped in the factory installed metering device with the in-door unit. Use ...
Page 18 - Install Thermostat
18 Complete Control Wiring 1. Run the control wiring close to the terminal block on the indoor unit. 2. Connect the wires as shown in Fig 18 and Fig. 20 for 38HDR units, and Fig. 19 and Fig. 21 for 38QRR units. Complete Power Connection To Indoor Unit Be sure field wiring complies with local buildin...
Page 19 - Reassemble Indoor Unit; UNIT DAMAGE HAZARD; Service Valve
19 HP ONLY COOLING ONLY A09545 Fig. 25 -- Thermostat Wire Connection for 40QAC Heating Only Fig. 26 -- Thermostat Wire Connection for 40QAQ Reassemble Indoor Unit 1. Reinstall filters and inlet grilles2. Reinstall the side panels START--UP Preliminary Checks 1. Check condensate drainage system; on t...
Page 20 - Deep Vacuum Method; MINUTES; MI; Triple Evacuation Method
20 Manifold Gage 500 microns Low side valve High side valve Charge hose Charge hose Vacuum pump Low side valve A07361 Fig. 29 -- Manifold Deep Vacuum Method The deep vacuum method requires a vacuum pump capable ofpulling a vacuum of 500 microns and a vacuum gage capable of accurately measuring this ...
Page 21 - AIR FILTERS
21 OPERATING SEQUENCE Ceiling--suspended fan coil units have a relay board which controlssystem operation in response to a room thermostat. The user may manually select any one of 3 fan speeds for unit operation. Thedischarge louvers on the unit can be stationary or swing continuously. A switch loca...
Page 22 - To clean the outdoor coil:; SERVICE
22 Table 13 – Cleaning and Maintenance Schedule TASK MONTHLY QUARTERLY YEARLY INDOOR UNIT Clean Air Filters X Clean Drain Pipe X Clean Condensate Drain Pan X Clean Indoor Coil X Clean Indoor Unit Front Panel X OUTDOOR UNIT Clean the Fins From Outside X Open the Unit and Clean Fins Inside X Remove Du...
Page 23 - Before Calling for Service; FRESH AIR INSTALLATION OPTION; TROUBLESHOOTING; Table 14 – Troubleshooting
23 Before Calling for Service Save the cost of a service call by doing the following: 1. Be sure main power to system is turned on.2. Press Mode button until OFF is displayed. Wait 5 minutes.3. Press Mode button until either COOL or HEAT is displayed (as desired). 4. Adjust thermostat set point to d...