Carrier 40MBAB Installation Instructions Manual page 24

40MBAB: Installation Instructions
S4 Dip Switch Settings
This dip switch group is for configuring the staging of supplemental heat
and for dehumidification fan control.
•S4-1: Use this dip switch when 2 stages of supplemental heat, W1 and
W2, are available; OFF allows for independent control of W1 and W2
via the Thermostat (dual stage), ON is used for single stage
supplemental heat, W1 and W2 are internally jumped together. The
default is ON
•S4-2: Use this dip switch to enable dehumidification fan operation.
OFF removes the internal jumper from R to DH, meaning DH will be
controlled via the thermostat. When the system is configured for
dehumidification and there is a demand present, the 24V output from
the thermostat drops to 0V, the refrigeration system starts the
dehumidification operation, and the fan air volume drops to low fan
speed.
External Static
Capacity Pressure
Range
40MBABQ18XA3 0 - 0.80 in. w.g.
40MBABQ24XA3 0 - 0.80 in. w.g.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 16 — Electric Heater Nominal Air Flow Settings
Electric Heater Nominal Air Flow Settings (Sheet 1 of 3)
Electric
Fan Speed
Heater Kit
Cooling Turbo —
Cooling High —
Cooling Medium —
Cooling Low —
Heat Pump Turbo —
Heat Pump High —
Heat Pump
—
Medium
Heat Pump Low —
Electric heater kit 0
10KW
(Default)
10KW,
Electric heater kit 1
8KW
Electric heater kit 2 8KW
Electric heater kit 3 5KW
Cooling Turbo —
Cooling High —
Cooling Medium —
Cooling Low —
Heat Pump Turbo —
Heat Pump High —
Heat Pump
—
Medium
Heat Pump Low —
Auxiliary Heater
15KW
Default 0
15KW,
Auxiliary Heater 1
10KW
10KW,
Auxiliary Heater 2
8KW
Auxiliary Heater 3 5KW
ON creates an internal jump between R and DH, meaning no external
dehumidification signal is present, DH will always receive a 24V signal and the
fan will operate as normal. The default is ON.
NOTE: S4-2 operates on reverse logic. DH is energized when there is
no external dehumidification control.
S4-2 Default ON:
Dehumidification
control not available.
OFF: Dehumidification
feature is enabled through
thermostat.
Fig. 57 —S4 DIP Switch
24V Thermostat
24V
DIP Switch
DIP Switch Terminal
Engaged
SW3-4=ON Y2/Y
SW3-4=OFF Y2/Y
— Y1
— —
— —
— B+Y2/Y, W
— Y1
— —
SW4-1=OFF SW4-1=OFF
SW4-2=OFF W1, W2, AUX SW4-2=OFF
SW4-3=OFF SW4-3=OFF
SW4-1=OFF SW4-1=OFF
SW4-2=OFF W1, W2, AUX SW4-2=OFF
SW4-3=ON SW4-3=ON
SW4-1=OFF SW4-1=OFF
SW4-2=ON W1, W2, AUX SW4-2=ON
SW4-3=OFF SW4-3=OFF
SW4-1=OFF SW4-1=OFF
SW4-2=ON W1, W2, AUX SW4-2=ON
SW4-3=ON SW4-3=ON
SW3-4=ON Y2/Y
SW3-4=OFF Y2/Y
— Y1
— —
— —
— B+Y2/Y, W
— Y1
— —
SW4-1=OFF SW4-1=OFF
SW4-2=OFF W1, W2, AUX SW4-2=OFF
SW4-3=OFF SW4-3=OFF
SW4-1=OFF SW4-1=OFF
SW4-2=OFF W1, W2, AUX SW4-2=OFF
SW4-3=ON SW4-3=ON
SW4-1=OFF SW4-1=OFF
SW4-2=ON W1, W2, AUX SW4-2=ON
SW4-3=OFF SW4-3=OFF
SW4-1=OFF SW4-1=OFF
SW4-2=ON W1, W2, AUX SW4-2=ON
SW4-3=ON SW4-3=ON
24
S4-1 Default ON:
For single stage
supplemental heat, W1 and
W2 are connected.
-
OFF: For dual stage supple
mental heat, W1 and W2 are
controlled independently.
Wired Controller
Air Volume CFM
Mode
— Cool
— Cool
— Cool
— Cool
— Heat
— Heat
— Heat
— Heat
Heat + AUX, AUX
Heat + AUX, AUX
Heat + AUX, AUX
Heat + AUX, AUX
— Cool
— Cool
— Cool
— Cool
— Heat
— Heat
— Heat
— Heat
Heat + AUX, AUX
Heat + AUX, AUX
Heat + AUX, AUX
Heat + AUX, AUX
A220844
618
576
529
488
565
541
435
400
653
624
594
565
824
759
694
629
788
753
641
524
871
841
818
788