Service manual

SERVICING
111
Dehumidification Disable/Enable Dipswitch - Reduces
cooling airflow by ~ 15% when enabled AND when used with
a humidistat (such as DEHUM1). Airflow is reduced when
a call for cooling is present and the humidistat is open.
7
8
OFF ON
DEHUM
Unused
Move to the ON position to
enable dehumidification
Cool Adjust Profile
Selection Selection Selection
Switches Switches Switches
D ON ON ON ON ON ON
C OFF ON OFF ON OFF ON
(1) Select model and desired
high stage cooling airflow. Determine the cooresponding tap
( A, B, C, or D ). Set dip switches 1 and 2 to the appropriate
ON / OFF positions. (2) Select model and installed electric
heater size. Set switches 9, 10, and 11 to the appropriate
ON/OFF positions. (3) Select the airflow adjustment factor tap
A and D are 0%; Tap B is +10%; Tap C -10%. Set dip switches 3
and 4 to the appropriate ON / OFF positions.
Select desired Comfort Mode profile
(see profiles above). Set switches 5 and 6 to the approriate
ON / OFF positions.
A ------- -------- 60 sec/100%
B ON OFF ON OFF ON OFF
TAP 1 2 3 4 5 6
To set airflow:
D 30 sec/50% 7.5 min/82% 30 sec/50%
A OFF OFF OFF OFF OFF OFF
0140A00045
Speed Selection Dip Switches
B ------- 30 sec/50% 60 sec/100%
To set Comfort Mode:
Profiles Pre-Run Short-Run OFF Delay
C ------- 7.5 min/82% 60 sec/100%
Model Tap Low Stage High Stage
Cool Cool
MBVC1200
*
A 400 600
B 540 800
C 670 1000
D 800 1200
MBVC1600
*
A 670 1000
B 800 1200
C 940 1400
D 1070 1600
*
MBVC2000
A 800 1200
B 1070 1600
C 1200 1800
D 1340 2000
Htr Kw 9 10 11 MBVC1200* MBVC16000* MBVC2000*
3 ON ON ON 600 800 800
5 ON ON OFF 600 800 800
6 ON OFF ON 635 800 800
8 ON OFF OFF 740 1000 1000
10 OFF ON ON 1000 1000 1200
15 OFF ON OFF 1400 1500 1500
20 OFF OFF ON NR NR 2000
MBVC Airflow Table
Electric Heater Airflow - Airflow for installed electric heaters
is set by adjusting the dipswitches to the appropriate heater
size.
Electric Heating Airflow (* indicates factory setting)
21 kW*
9
OFF
ON
10
11
20 kW
9
OFF ON
10
11
15 kW
9
OFF ON
10
11
10 kW
9
OFF ON
10
11
8 kW
9
OFF
ON
10
11
6 kW
9
OFF
ON
10
11
5 kW
9
OFF ON
10
11
3 kW
9
OFF
ON
10
11
Electric Heating Airflow (* indicates factory setting)
The table below indicates the airflow that corresponds to the
available dipswitch settings.