Rheem Raypak AVIA 264 - Page 40

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