Rheem Raypak AVIA 264 Installation And Operation Manual page 82

NOTE:
• P9 Auxiliary is a dry contact output: It requires
external power supply to energize connected
devices. See Figure 145.
• Load on P9 must not exceed 3 Amps. If the load is
larger than 3 Amps, use P9 auxiliary output to drive
a field-installed contactor. See Figure 147.
The built-in Auxiliary output (P9) is a dry-contact relay output that can be used as a switch to control valves, lights and
other devices.
OUTPUT INTPUT
TEMP TEMP
P2 P1
Use the Normally Closed (NC) and Normally Open (NO) terminals to drive a 3-way valve. This configuration typically
uses an external 24 VAC supply.
AUXILIARY RELAY AUXILIARY RELAY
OUTPUT OUTPUT INTPUT INTPUT
TEMP TEMP TEMP TEMP
P2 P2 P1 P1
82
AUXILIARY RELAY
AUX
POWER BLOWER
P9
Figure 145. Auxiliary Relay
USE WITH A SPDT OR DPDT 24VAC RELAY
COM
NO
NC
AUX AUX
POWER BLOWER POWER BLOWER
P9 P9
Figure 146. 3-Way Valve
COM
NO
NC
COM
NO
NC
+
EXTERNAL
POWER
-
SUPPLY
USE AN EXTERNA 24VAC
TRANSFORMER
COMMON
3-WAY VALVE
POSITION 2
ACTUATOR
POSITION 1
3-WAY VALVE
ACTUATOR