Thermostat Connection To Indoor Unit; Setting Up Two Controllers - Rinnai CNTRLDRCIPW Operation And Installation Manual

Thermostat Connection to Indoor Unit

Loom
Knockout
Indoor Unit
PCB
Figure 6. Model A

Setting up two Controllers

Up to two controllers may be connected to the HA and HB terminals on the indoor
unit as detailed below. From factory, all controllers are supplied with SW1 dip
switch setting '1' OFF and dip switch setting '2' OFF. When configuring a second
controller to the DRCi system, two dip switches on the rear of the second controller
(SW1 location) must change to the ON position as shown below. Dip switch settings
for the primary or master controller must remain unchanged. Refer to Figure 7.
Controller 1 (Master) Controller 2 (SUB)
SW1 SW1
Figure 7.
If two controllers are installed the secondary 'SUB' controller is not capable of the
following functions:
Setting Time and Date Weekly Schedule Timer On / Off
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Rinnai 12 DRCi R32 Wired Controller OIM