Rheem Raypak AVIA 264 Installation And Operation Manual page 40

Air Pressure Switches and Hoses
Use next illustration as reference to check correct connection of air pressure switches and hoses.
VENT PRESSURE
SWITCH
-
+
FLUE SENSOR
NC - COM
VNT
-
+
NC - COM
AIR PRESSURE
SWITCH
SWITCH-PRESSURE VENT NC
8
EXHAUST
40
SPARK
IGNITER
240V
APS
FAN DPS
NO - COM
-
-
+
+
DIFFERENTIAL
DIFFERENTIAL
PRESSURE
PRESSURE
SWITCH-264
SWITCH-404
3
+
SWITCH-PRESSURE
AIR NC
SWITCH-PRESSURE
DIFFERENTIAL NO
TEE #1
2
4
BLOWER
HOSE #
1
2
TEE #1
CAP
3
4
TEE #2
5
6
TEE #3
TEE #4
7
8
9
9
TEE #4
GAS VALVE
+
-
-
5
1/4 HOSE ROUTING
TO
GAS VALVE (VENT) VENTURI (SUCTION #1)
TEE #1 VENTURI (SUCTION #2)
HOSE #3 &4
DPS (+SIDE)
TEE #2
HOSE #5 & CAP
APS (-SIDE)
TEE #3
HOSE #7 & CAP
DPS (-SIDE)
VENT SWITCH (+SIDE)
TEE #4
HOSE #9 & CAP
1
+
TEE #2
7
TEE #3
6
VENTURI
FROM
HOSE #2
TEE #1
TEE #1
HOSE #4
TEE #2
BLOWER
HOSE #6
TEE #3
TEE #4
EXHAUST
HOSE #8