WALL THERMOSTAT INSTALLATION
The following instructions apply to RC and RP units only.
NOTE: Carrier thermostats are recommended. See Accessories section.
IMPORTANT: Only trained, qualified personnel and service mechanics should install electrical accessories on Carrier 52C series products per Carrier’s installation instructions. Please contact your local electrical contractor, dealer, or distribu- tor for assistance.
■INSTALL THERMOSTAT — All remote control units.
1.Check to be sure power to unit is disconnected.
2.Remove terminal board cover from control box cover by removing screw (see Figure 10).
NOTE: Terminal connector can be removed and re- placed to simplify thermostat wiring.
3.Connect wires from terminals on the thermostat to terminals on chassis terminal board connector. See Figures 11 and 12.
TERMINAL
FANCOVER SWITCH
HI
LO
SCREW
4.Reinstall cover.
5.Set desired fan speed using fan switch (unit will operate only at selected speed).
6.Restore power to unit.
NOTE: Refer to thermostat installation instructions for details on installing thermostat.
| R |
| G |
TYPICAL | Y |
WALL |
|
THERMOSTAT | W |
| O |
| C |
| 52C TERMINAL |
| BLOCK |
NOTES:
1.Use terminal “O” for heat pump connection only.
2.See table below for terminal descriptions.
TERMINAL | DESIGNATION |
R | 24 VAC |
G | Fan |
Y | Compressor |
W | Electric Heat |
O | Reversing Valve |
C | Common |
FIGURE 11 — WIRING CONNECTIONS
POWER | THERMOSTAT | |
CORD | ||
|
FIGURE 10 — CONTROL BOX TERMINAL COVER
R
G
Y
W
O
C
FIGURE 12 — TERMINAL CONNECTOR
REMOVAL AND REPLACEMENT
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