Dettson AMT154SDMA, Installation Instructions And Owner'S Manual

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14
Table 8: Airflow Data, Models with 1.0 HP variable speed (ECM) motors
SW1- HEAT
DIP switch position
HEAT INPUT
(USGPH)
CFM with
SW3-ADJ
DIP switch position A
CFM with
SW3-ADJ
DIP switch position B
CFM with
SW3-ADJ
DIP switch position C
A
(1=OFF, 2=OFF)
0.90 1450 1640 1235
B
(1=ON, 2=OFF)
1.10 1700 1920 1445
C
(1=OFF, 2=ON)
D
(1=ON, 2=ON)
SW2- COOL
DIP switch position
A/C size
(TON)
CFM with
SW3-ADJ
DIP switch position A
CFM with
SW3-ADJ
DIP switch position B
CFM with
SW3-ADJ
DIP switch position C
A
(1=OFF, 2=OFF)
5.0 1500 1650 1350
B
(1=ON, 2=OFF)
4.0 1200 1320 1080
C
(1=OFF, 2=ON)
3.5 1050 1155 945
D
(1=ON, 2=ON)
3.0 900 990 810
SW2- COOL
DIP switch position
A/C size
(TON)
CFM with
SW3-ADJ
DIP switch position A
CFM with
SW3-ADJ
DIP switch position B
CFM with
SW3-ADJ
DIP switch position C
A
(1=OFF, 2=OFF)
5.0 2000 2200 1800
B
(1=ON, 2=OFF)
4.0 1600 1760 1440
C
(1=OFF, 2=ON)
3.5 1400 1540 1260
D
(1=ON, 2=ON)
3.0 1200 1320 1080
SW4- DEALY
DIP switch position
HEAT INPUT
(USGPH)
PreRun
On-Delay
CFM
Level - Time
ShortRun
On-Delay
CFM
Level - Time
Off-Delay
CFM
Level - Time
A
(1=OFF, 2=OFF)
0.90 13% - 45 sec. 44% - 30 sec 38% - 3 min.
B
(1=ON, 2=OFF)
1.10 13% - 30 sec. 44% - 30 sec 38% - 3 min.
C
(1=OFF, 2=ON)
1.10 13% - 30 sec. 50% - 30 sec 38% - 3 min.
D
(1=ON, 2=ON)
No adjustment
required
A/C size
PreRun
On-Delay
CFM
Level - Time
ShortRun
On-Delay
CFM
Level - Time
Off-Delay
CFM
Level - Time
- All NO DELAY NO DELAY 100% - 90 sec
DELAY PROFILE FOR OIL HEATING MODE
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.
OIL HEATING MODE
24 VAC input (R) on W only
CONTINUOUS FAN
24 VAC input (R) on G only
COOLING OR HEAT PUMP HEATING MODE
24 VAC input (R) to G, Y/Y2 and O (for cooling)
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)
Settings not used in this mode.
Setting not used in this application
DELAY PROFILE FOR COOLING OR HEAT PUMP HEATING MODE