Minimum Clearances
| TO |
|
|
| POWER | THERMOSTAT |
|
| SUPPLY |
|
|
48" OVERHEAD | WEATHERPROOF | TO |
|
DISCONNECT | INDOOR |
| |
CLEARANCE |
| ||
SWITCH | UNIT |
| |
|
| ||
| NEC CLASS 1 |
|
|
| WIRING |
|
|
12" CLEARANCE |
|
|
|
|
| NEC CLASS 2 | TO |
|
| EVAPORATOR | |
|
| WIRING | |
|
| COIL | |
|
|
|
NAMEPLATE | 24" SERVICE |
| |
LOCATION |
| ||
ACCESS CLEARANCE | SEAL OPENING(S) | ||
| |||
| 12" CLEARANCE | WITH PERMAGUM | |
| BOTH SIDES | ||
| OR EQUIVALENT | ||
|
| ||
| NOTE: ALL OUTDOOR WIRING |
| |
| MUST BE WEATHERPROOF |
|
Figure 1
Refrigerant Piping Connections
Check the indoor piston orifice to see if it matches the required piston for the indoor and outdoor combina- tion being installed. Refer to the refrigerant charge label located on the inside of the outdoor unit access panel for the correct piston orifice size requirements. Replace the piston orifice with the correct size if this size is not already installed in the indoor coil.
For optimum system performance, indoor coils should be washed with a suitable detergent to remove any residue from the coil manufacturing processes.
Refer to the following instructions when making the refrigerant piping connections:
1.The unit has been factory charged with refrigerant (R22) suitable for a matched indoor coil and 20 feet of properly sized refrigerant tubing. Refer to the unit rating plate for the exact amount of this factory charge.
2.Refer to the refrigerant charge label located on the inside surface of the outdoor unit access panel. Locate the outdoor and indoor models being installed and note any refrigerant adjustments that must be made to the system. Adjustments to the system charge must also be made if an interconnecting line set other than 20 feet is installed.
3.Route tubing to fittings on the outdoor unit vapor and liquid service valves using properly sized refrigerant grade tubing. Run the refrigerant tubing in as direct a path as possible avoiding unnecessary turns and bends.
4.Ensure that the vapor line is insulated properly and that both vapor and liquid lines are not in direct contact with floors, walls, ductwork, floor joists or other piping.
5.After wrapping the service valves with a wet rag, braze the tubing to the valve connections.
6.After brazing the tubing connections at the indoor coil, leak test the refrigerant tubing and indoor coil.
7.Following the leak test, evacuate the indoor coil and line set to a minimum of 500 microns to remove contamination and moisture.
8.After evacuation, open both the vapor and liquid service valves fully.
# 41718L098 | Page 3 |
