Payne C Series Installation, Start-Up, Operating And Service And Maintenance Instructions page 20

Evaporator Coil
+
+
3/4" PVC
+
+
+ +
3/4
Condensing +
3/4
Furnace
+
+
+
+
+
3/4
< +
< + < +
3/4
Blower
+ = Positive pressure
< + = Pressure lower than areas with +
( = Negative pressure
Air gap here
Open standpipe
for coil or
humidifier drain
TEE
(1/2" CPVC to 3/4" PVC
adapter from loose parts bag.)
To open drain
Open standpipe
(Optional when coil drain is
not connected to furnace
drain.)
3/4" PVC
1/2" CPVC or larger*
Recommend "T" fitting
high
standpipe of same
diameteror larger
3/4
Fig. 14 − Example of Field Drain Attachment
20
Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä
Evaporator Coil
+ + +
Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä
Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä
3/4" PVC
Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä
Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä
Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä
+
+
3/4 +
Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä
Condensing
3/4
+
Furnace
+
+
+
+
+
3/4
< +
< +
< +
- 3/4
Blower
-
-
- -
3/4
-
+ = Positive pressure
< + = Pressure lower than areas with +
= Negative pressure
Evaporator Coil
Ä Ä Ä Ä Ä Ä Ä Ä Ä
+
+
Ä Ä Ä Ä Ä Ä Ä Ä Ä
Ä Ä Ä Ä Ä Ä Ä Ä Ä
3/4" PVC
Ä Ä Ä Ä Ä Ä Ä Ä Ä
+
Ä Ä Ä Ä Ä Ä Ä Ä Ä
3/4
Ä Ä Ä Ä Ä Ä Ä Ä Ä
+ +
3/4
Ä Ä Ä Ä Ä Ä Ä Ä Ä
Condensing
3/4
+ Furnace
+
+
3/4
< +
< +
< +
- 3/4
Blower
-
-
- -
3/4
-
+ = Positive pressure
< + = Pressure lower than areas with +
= Negative pressure
3/4" PVC
Open standpipe
Air gap required when
another drain is connected
to furnace drain.
TEE
(1/2" CPVC to 3/4" PVC
adapter from loose parts bag.)
Open standpipe
(Optional when coil drain is
not connected to furnace
drain.)
3/4" PVC
TEE
(1/2" CPVC to 3/4" PVC
adapter from loose parts bag.)
A170135