Dip Switch Settings - A & T International 1 Service Manual

COMMON TO ALL AIR HANDLERS CONTINUED
(SEE PAGE 13 FOR SEQUENCE OF OPERATION)

DIP SWITCH SETTINGS

Figure 2
Figure 2 A
Figure 2 B
(Unit Mount Control Only)
There are two dip switches on the relay board that offer
different modes of operation. This allows unit to be
matched with either cooling only or cooling with electric
heat.
!
WARNING
Electrical shock hazard. Before accessing control
compartment, disconnect power to indoor unit. DO
NOT change dipswitch settings with power
applied to unit. Failure to follow these instructions
could result in death or serious injury.
WCP- to gain access to relay board, remove return air grill
from front of unit. Remove any panels or covers to control
section. The relay board is located in control box of unit.
Set dipswitches (Figure 3) according to table below(Figure
4).
CCP- to gain access to relay board, remove return air
grill from bottom of unit. Relay board is located in control
section. Set dipswitches (Figure 3) according to table
below(Figure 4).
Replace covers after dipswitches are set. Apply power to
the equipment.
DIPSWITCH ON RELAY BOARD
DIP SWITCH SETTINGS
Switch
Cooling only
Cooling Electric or Hydronic Heat
Off = Open
7
Figure 3
Figure 4
1
Open
On
On = 1 or 2
2
Open
On