Bryant 368RAN Series A Installation, Start-Up, And Operating Instructions Manual page 13

Low-boy oil furnace
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SW1-HEAT
Dip Switch Position
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
SW2-COOL
Dip Switch Position
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
COOLING OR HEAT PUMP HEATING MODE - SINGLE SPEED OR 2-SPEED HIGH
SW2-COOL
Dip Switch Position
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
NOTE: In cooling-Dehumidification mode, with no 24 VAC input to DH, the CFM-STD is reduced by 15%
SW2-COOL
Dip Switch Position
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
NOTE: In Cooling-Dehumidification mode, with no 24 VAC input to DH, the CFM-STD is reduced by 15%
SW4-DELAY
Dip Switch Position
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
Short Run is the time before the blower start at normal speed, with very low CFM, to minimize cool draft in the air distribution system.
Off Delay is the time required to cool down the heat exchanger, with low CFM, to minimize cool draft in the air distribution system.
No Adjustment
Required
-
Short Run is the time before the blower start at normal speed, with lower CFM, to minimize cool draft in the air distribution system.
Off Delay is the time required to cool down the coil (heating mode), with low CFM, to minimize cool draft in the air distribution system.
3. Remove air filters.
4. Remove blower retaining wing nuts.
5. Slide blower on rails toward rear of unit.
TABLE 13—368RAN 105 AIRFLOW DATA (CFM)
OIL HEATING MODE
24 VAC INPUT (R) ON W ONLY
HEAT INPUT
CFM with SW3-ADJ
(USGPH)
Dip Switch A Position
0.75
0.65
0.5
CONTINUOUS FAN
24 VAC INPUT (R) ON G ONLY
A/C Size
CFM with ADJ
(TON)
Dip Switch A Position
3.0
2.5
2.0
1.5
24 VAC INPUT (R) TO G, Y/Y2 AND O (FOR COOLING)
A/C Size
CFM with SW3-ADJ
(TON)
Dip Switch A Position
3.0
2.5
2.0
1.5
COOLING MODE OR HEAT PUMP HEATING MODE - 2-SPEED LOW
24 VAC INPUT (R) TO G, Y1 AND O (FOR COOLING)
A/C Size
CFM-STD with SW3-ADJ
(TON)
Dip Switch A Position
3.0
580
2.5
480
2.0
385
1.5
290
DELAY PROFILE FOR OIL HEATING MODE
HEAT INPUT
On-Delay Time
(USGPH)
0.75
0.65
0.5
All
DELAY PROFILE FOR COOLING OR HEAT PUMP HEATING MODE
On-Delay
A/C Size
All
30 sec
CFM with SW3-ADJ
Dip Switch B Position
1260
1050
850
Same Value then A Dip Switch Position
CFM with ADJ
Dip Switch B Position
785
655
525
395
CFM with SW3-ADJ
Dip Switch B Position
1050
875
700
525
CFM-HIGH with SW3-ADJ
Dip Switch B Position
635
530
425
320
Short Run On-Delay
CFM Level - Time
45 sec
19% - 30 sec
45 sec
19% - 30 sec
60 sec
13% - 30 sec
30 sec
100% - 0 sec
Short Run On-Delay
Time
CFM Level - Time
75% - 2.5 min.
6. Reverse items 1 through 5 to reinstall blower. Refer to
wiring diagram (See Fig. 3) of these instructions or diagram
located on inside of blower door to properly rewire unit.
—13—
CFM with SW3-ADJ
Dip Switch C Position
1425
1190
960
CFM with ADJ
Dip Switch C Position
905
755
605
455
CFM with SW3-ADJ
Dip Switch C Position
1155
965
770
580
CFM-LOW with SW3-ADJ
Dip Switch C Position
Off-Delay
CFM Level - Time
38% - 3 min.
38% - 3 min.
38% - 3 min.
100% - 2 min.
Off-Delay
CFM Level - Time
50% - 3 min.
1070
895
725
670
560
445
335
945
790
630
475
520
435
345
260

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