Installation guide

ACCESS
PANEL
SECONDARY DRA_N WITH
APPROPRIATE TRAp REQUIRED
(USE FACTORY KIT OR
FIELD-SUPPLkED TRAp)
{USE FACTORY KIT OR
F_ELD-SUPPLIED TRAp OF
SUFFICIENT DEPTH
STANDARD P=TRAPS ARE
NOT SUFFiCiENT SEE
FIGURE OF RECOMMENDED
CONDENSATE TRAp)
A03003
Fig* 20--Condensate Drain
PROCEDURE 9--SEQUENCE OF OPERATION
A. Continuous Fan
['hennost_l Closes R to G G energizes fan relay on PCB which comple_es circuit 1o indeor blower motor When G is de-energized, there is a 90
sec delay befot_ rel_y opens
B, Cooling Mode
13temlost_l energizes Rlo G, R to Y, _nd R to O (beat pump only) (3 energizes fro1 relay on PCB whicb completes circuit 1o indoor blower motor
When G is de-energized, lbere is a 90 sec del_y before _an relay opens
C, Heat Pump Heating with Auxiliary Electric Heat
I_tennost_l eriergizes R 1o G, R 1o Y, and R to W G energizes fan relay on PCB whicb compleles ci]ct_it to indoor blower motor W energizes
electric beat rel_y(s) which completes circuit to beater element(s) Wbeit W is de-energized, electric beat rel_y(s) open, turning oil" heater elements
When G is de-e_crgized there is a 90 sec delay befole _alt rel_y opens
D, Electric Heat or Emergency Heat Mode
I_temmstal closes R to W, W energizes electric beat relay(s) which compleles circuit to beater eIementls) Blower mo_or is energized through
normally closed contacts on fan relay When W is de-energized, electric heal relay(s) opens.
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