Installation; Upflow Installation; Supply Air Connections - Payne PG95ESA Installation, Start-Up, Operating And Service And Maintenance Instructions

Evaporator Coil
+
+
+
Condensing
+ Furnace
+
+
Blower
+ = Positive pressure
< + = Pressure lower than areas with +
( = Negative pressure

INSTALLATION

NOTICE
Cabinet air leakage is less than 2% at 1.0 in. W.C. Cabinet air
leakage is less than 1.4% at 0.5 in. W.C. when tested in accor-
dance with ASHRAE Standard 193.

Upflow Installation

NOTE: The furnace must be pitched as shown in Fig. 21 for
proper condensate drainage.

Supply Air Connections

For a furnace not equipped with a cooling coil, the outlet duct shall
be provided with a removable access panel. This opening shall be
accessible when the furnace is installed and shall be of such a size
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
3/4" PVC
drain.)
+
+ +
3/4
+
3/4" PVC
3/4
+
+
3/4
1/2" CPVC or larger*
Recommend "T" fitting
high
< +
standpipe of same
< + < +
diameteror larger
3/4
3/4
Fig. 18 - - Example of Field Drain Attachment
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
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
Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä
Condensing
Furnace
+
+
+
Blower
-
- -
-
+ = 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
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 Ä Ä Ä Ä Ä Ä
Condensing
+ Furnace
+
+
Blower
-
- -
-
+ = Positive pressure
< + = Pressure lower than areas with +
= Negative pressure
that the heat exchanger can be viewed for possible openings using
light assistance or a probe can be inserted for sampling the air
stream. The cover attachment shall prevent leaks.
Connect supply- -air duct to flanges on furnace supply- -air outlet.
Bend flange upward to 90_ with wide duct pliers. See Fig. 19.
The supply- -air duct must be connected to ONLY the furnace
supply- -outlet- -air duct flanges or air conditioning coil casing
(when used). DO NOT cut main furnace casing side to attach
supply air duct, humidifier, or other accessories. All supply- -side
accessories MUST be connected to duct external to furnace main
casing.
21
3/4" PVC
+
+
3/4 +
3/4" PVC
3/4
+
Open standpipe
Air gap required when
+
another drain is connected
+
to furnace drain.
3/4
TEE
(1/2" CPVC to 3/4" PVC
adapter from loose parts bag.)
< +
< +
< +
- 3/4
-
3/4
Open standpipe
(Optional when coil drain is
3/4" PVC
not connected to furnace
drain.)
3/4
+
+
3/4
3/4
3/4" PVC
TEE
3/4
(1/2" CPVC to 3/4" PVC
adapter from loose parts bag.)
< +
< +
< +
- 3/4
-
3/4
A170135