Heat-Pump System Test
This procedure allows the installer to bypass delays associated with the minimum on/off times.
OUTPUT TESTED PROCEDURE EXPECTED RESULT
Fan
Mode = OFF
Fan = change from AUTO to ON
Fan should turn on
1
ST
stage cooling
Mode = COOL
Set the setpoint by at least -3°F (-2°C)
below room temperature and press
ACCEPT to engage HOLD
First stage cooling should
engage
2
ND
stage cooling*
Remain in COOL mode, lower
setpoint by at least one degree (°F or
°C) and press ACCEPT again.
Second stage cooling should
engage
1
ST
stage heating
Mode = HEAT
Set the setpoint by at least +3°F
(+2°C) above room temperature and
press ACCEPT
First stage heating should
engage
2
ND
stage heating*
Remain in HEAT mode, raise setpoint
by at least one degree (°F or °C) and
press ACCEPT again.
Second stage heating should
engage.
Heating using
Auxiliary Heat**
Remain in HEAT mode, raise setpoint
by at least one degree (°F or °C) and
press ACCEPT again.
Auxiliary heating should
engage (if there are more heat
stages than cool stages)
* Only in two stage heat pump systems.
** Only with Heat-Pump systems equipped with an Auxiliary Heater.
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