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Table 8:
BLOWER
SPEED
0.2" (W.C.)
HIGH
MED-HIGH
MED-LOW
LOW
Table 9:
SW1- HEAT
HEAT INPUT
DIP switch position
(USGPH)
A (1=OFF, 2=OFF)
0.70
B (1=ON, 2=OFF)
0.55
*C (1=OFF, 2=ON)
0.55
D (1=ON, 2=ON)
SW2- COOL
A/C size
DIP switch position
(TON)
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
SW2- COOL
A/C size
DIP switch position
(TON)
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
In Cooling - Dehumidification mode, with no 24 VAC input to DH, the CFMs are reduced by 15%.
The CFMs shown are reduced by 20% if there is 24 VAC input to Y1 (first stage cooling mode)
SW4- DELAY
HEAT INPUT
DIP switch position
(USGPH)
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
0.55
*C (1=OFF, 2=ON)
0.55
D (1=ON, 2=ON)
PreRun and ShortRun are the periods of time when the the blower starts at very low CFM to minimize the
distributon of cool air in the system and then runs up to normal speed.
Off Delay is the time required to cool down the heat exchanger with low CFMs, to minimize cool draft in the
air distribution system.
DELAY PROFILE FOR COOLING OR HEAT PUMP HEATING MODE
No adjustment
A/C size
required
-
* Alternate adjustement in oil-fired heating mode with higher temperature rise
Airflow Data, Models with 1/3 HP PSC motors
EXTERNAL STATIC PRESSURE WITH AIR FILTER
0.3" (W.C.)
0.4" (W.C.)
1420
1335
1275
1230
1015
1000
815
785
Airflow Data, Models with 1/2 HP ECM motors
OIL HEATING MODE
24 VAC input (R) on W only
CFM with SW3-ADJ
DIP switch position A
1260
1050
850
Same value as DIP switch position A
CONTINUOUS FAN
24 VAC input (R) on G only
CFM with SW3-ADJ
DIP switch position A
3.0
900
2.5
750
2.0
600
1.5
450
COOLING OR HEAT PUMP HEATING MODE
24 VAC input (R) to G, Y/Y2 and O (for cooling)
CFM with SW3-ADJ
DIP switch position A
3.0
1200
2.5
1000
2.0
800
1.5
600
DELAY PROFILE FOR OIL HEATING MODE
PreRun On-Delay
CFM Level - Time
0.7
13% - 45 sec.
13% - 45 sec.
13% - 60 sec.
All
13% - 30 sec.
PreRun On-Delay
CFM Level - Time
All
NO DELAY
0.5" (W.C.)
0.6" (W.C.)
1240
1180
1170
1095
955
915
775
730
CFM with SW3-ADJ
DIP switch position B
1385
1155
935
CFM with SW3-ADJ
DIP switch position B
1036
860
690
515
CFM with SW3-ADJ
DIP switch position B
1320
1100
880
660
ShortRun On-Delay
CFM Level - Time
19% - 30 sec
19% - 60 sec
13% - 60 sec
100% - 0 sec
ShortRun On-Delay
CFM Level - Time
NO DELAY
14
0.7" (W.C.)
1085
1025
1045
960
860
785
690
635
CFM with SW3-ADJ
DIP switch position C
1135
945
765
CFM with SW3-ADJ
DIP switch position C
765
635
510
380
CFM with SW3-ADJ
DIP switch position C
1080
900
720
540
Off-Delay
CFM Level - Time
38% - 3 min.
38% - 3 min.
38% - 3 min.
100% - 2 min.
Off-Delay
CFM Level - Time
100% - 90 sec
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