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The Ductless Split System of Choice
7
COMMON TO ALL AIR HANDLERS
Continued (See Page 21 for Sequence of Operation)
!
!
WARNING
Before accessing the control compartment, discon-
nect power to both the indoor and outdoor units.
Failure to do so could result in serious injury or
electrical shock. DO NOT change dipswitch settings
with power applied to the unit.
• WHP/WCP-
to gain access to the relay board, first
remove the return air grill from the front of the unit. Then
remove any panels or covers to the control section.
The relay board is located in the control box of the unit.
Set the dipswitches
(Figure 3)
according to the table
below
(Figure 4)
.
• CHP/CCP-
to gain access to the relay board, first
remove the return air grill from the bottom of the unit.
The relay board is located in the control section. Set
the dipswitches
(Figure 3)
according to the table
below
(Figure 4)
.
• FHP/FCP-
to gain access to the relay board, first
remove the return air grill from the bottom front of the
unit. The relay board is located in the control section.
Set the dipswitches
(Figure 3)
according to the table
below
(Figure 4)
.
Once the dipswitches are set and all covers and
panels are replaced, power can be applied to the equip-
ment. When 24V power is applied, the microprocessor
will read the dipswitch setting.
Figure 3
DIPSWITCH ON RELAY BOARD
DIP SWITCH SETTINGS
(Unit Mount Control Only)
There are two dip switches on the relay board that of-
fer different modes of operation. This allows the unit to be
matched with either a cooling only, cooling with electric
heat or heat pump condenser. Dipswitches are factory set
for a cooling only condenser. If the indoor unit is matched
with an EMI single zone or multi-zone heat pump con-
denser, the dipswitches will need to be changed.
DIP SWITCH SETTINGS
Switch
1
2
Cooling only
Open
Open
Cooling Electric or Hydronic Heat
On
On
Off = Open On = 1 or 2
Figure 4
