Dettson AMT Serie Guide D'installation Et Manuel Du Propriétaire page 14

SW1- HEAT HEAT INPUT
DIP switch position (USGPH)
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
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
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 (Slow speed of 2-speed compressor)
SW4- DEALY HEAT INPUT
A
(1=OFF, 2=OFF)
B
(1=ON, 2=OFF)
*C
(1=OFF, 2=ON)
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
-
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 coil (heating mode) with low CFMs, to mimimize cool draft
in the air distribution system.
* Alternate position for 0.55 input
All manuals and user guides at all-guides.com
Table 8: 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
0.70 1260
0.55 1050
0.55 850
Same value as DIP switch position A
CONTINUOUS FAN
CFM with SW3-ADJ
(TON) DIP switch position A
3.0 900
2.5 750
2.0 600
1.5 450
COOLING OR HEAT PUMP HEATING MODE
CFM with SW3-ADJ
(TON) 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
0.7 13% - 45 sec.
0.55 13% - 45 sec.
0.55 13% - 60 sec.
All 13% - 30 sec.
PreRun On-Delay
CFM Level - Time
All No Delay
CFM with SW3-ADJ
DIP switch position B
1385
1155
935
CFM with SW3-ADJ
DIP switch position B
990
830
660
495
CFM with SW3-ADJ
DIP switch position B
1320
1100
880
660
ShortRun On-Delay
19% - 30 sec
19% - 60 sec
13% - 60 sec
100% - 0 sec
ShortRun On-Delay
CFM Level - Time
No Delay
14
CFM with SW3-ADJ
DIP switch position C
1135
945
765
CFM with SW3-ADJ
DIP switch position C
810
675
540
405
CFM with SW3-ADJ
DIP switch position C
1080
900
720
540
Off-Delay
38% - 3 min.
38% - 3 min.
38% - 3 min.
100% - 2 min.
Off-Delay
CFM Level - Time
100% - 90 sec.