Measure Temperature Rise; Shut Down - Whirlpool W2PG Installation Instructions Manual

Adjusting Airflow for Variable-Speed Motor
Model
Nominal Heating
Cooling Input
kBTU kBTU
24, 30 68
36 68
36 90
42, 48, 60 83
42, 48, 60 110
42, 48, 60 138
Blower Speed Chart for Variable-Speed Motor
Unit Factory-Shipped Settings
Cooling Heating
Input Input Adjust
24 68 NORM
30 68 NORM
36 68 NORM
36 90 NORM
42 83 NORM
42 110 NORM
48 83 NORM
48 110 NORM
48 138 NORM
60 83 NORM
60 110 NORM
60 138 NORM
Motor ADJUST HEAT
HP Setting Setting
¹⁄₃
NORM A
¹⁄₂
NORM B
¹⁄₂
NORM A
³⁄₄
NORM C
³⁄₄
NORM C
³⁄₄
NORM A
Heat Cool
(BU) (BK)
A B
A A
B A
A A
C C
C C
C B
C B
A B
C A
C A
A A
Cooling CFM @ .50 Static
COOL COOL
Setting A Setting B
1,000 800
1,200 1,000
1,200 1,000
1,800 1,600
1,800 1,600
1,800 1,600

Measure Temperature Rise

1. After 20 minutes of heating operation, measure the furnace
temperature rise. Take air temperature readings in both the
return air ducts and the heated air ducts.
NOTE: If more than one run of return or heated air ducts is
used, air temperature measurements should be taken in each
duct. These measurements can be converted to an average
to obtain the temperature rise of the whole system.
2. If the furnace doesn't maintain temperature rise within the
range shown on the furnace rating plate, adjust the blower
speed. See the appropriate "Adjust Blower Speed" section
for your model.

Shut Down

If the construction will continue or the package unit will not be
used for a period of time, follow the shut down procedure.
1. Set the room thermostat to the lowest setting.
2. Disconnect power.
3. Remove burner access panel.
4. Turn off the gas supply at the manual gas shutoff valve.
5. Replace the burner access panel.
Gas Control Valve
A
B
C
A. Regulator adjusting cap
B. NPT inlet
¹⁄₈
C. " NPT inlet pressure tap
COOL COOL
Setting C Setting D
600 900
800 1,100
800 1,100
1,400 1,200
1,400 1,200
1,400 1,200
F
D
¹⁄₈
D. " NPT outlet pressure tap
E. NPT outlet
F. Gas control switch
E
13