Step 6 -- Provide For Condensate; Disposal; Step 7 -- Install Electrical - Payne PA1Z030 Installation, Start-Up And Service Instructions Manual

• Insulate and weatherproof all external ductwork. Insulate
and cover with a vapor barrier all ductwork passing through
conditioned spaces. Follow latest Sheet Metal and Air Con
ditioning Contractors National Association (SMACNA) and
Air Conditioning Contractors Association (ACCA) mini-
mum installation standards for" residential heating and air
conditioning systems.
• Secure all ducts to building structure. Flash, weather-
proof, and vibration-isolate duct openings in wall or roof
according to good construction practices.
Figure 8 shows a typical duct system with PA1Z unit
installed,
INDOOR
THERMOSTAT
SOURCE_
POWER AND
LOW VOLTAGI
ENTRY
DISCONNECTS
COMPOSITE PER NEC*
RUST-PROOF UNIT AND
BASE PAN _LECTRIC
CONDENSATE HEATER)
DRAIN
CONNECTION
LEGEND
Power Wiring
-- Control Wiring
Condenser Airflow
_ Evaporator Airflow
*Separate disconnect per NEC
(National Electrical Code) required
for electric heater when single-
point connection is not used.
Fig. 8 -- Typical Installation
Table 2 -- Minimum Airflow for Safe Electric
Heater Operation (Cfm)
024 030 UNIT SIZE PA1Z I I
036 042 048 060
700 875 1200 !225 1400 1750
B. Converting Horizontal Discharge Units to Downflow
(Vertical) Discharge
Condensate water can be drained directly onto the roof in
rooftop installations (where permitted) or onto a gravel apron
in ground level installations. Install a field supplied con
densate trap at end of condensate connection to ensure proper
drainage. Make sure that the outlet of the trap is at least
1 in. lower than the drain-pan condensate connection to pre-
vent the pan fl'om overflowing. See Fig. 9A and 9B. Prime
the trap with water. When using a gravel apron, make sure
it slopes away from the unit.
If the installation requires draining the condensate water away
fl'om the unit, install a 2 in. trap using a :_/4 in. OD tubing or
pipe. See Fig. 9A and 9B. Make sure that the outlet of the
trap is at least 1 in. lower than the unit drain-pan conden-
sate connection to prevent the pan from overflowing. Prime
the trap with water. Connect a drain tube using a minimum
of :_/4in. PVC, 3/4 in. CPVC, or :_/4in. copper pipe (all field sup
plied). Do not undersize the tube. Pitch the drain tube down
ward at a slope of at least 1 in. for every 10 ft of horizontal
run. Be sure to check the drain tube for" leaks. Prime trap at
the beginning of the cooling season start-up. Allowable glues
fox" condensate trap connection are: Standard ABS, CPVC, or
PVC cement.
1" MIN.
t
TRAP
OUTLET I
2" MIN.
f
Fig. 9A -- Condensate Trap (Using Tubing)
1" min.
%
TRAP
__OUTLET
&
I
Fig. 9B -- Condensate Trap (Using PVC Piping)
VII. STEP 7 -- INSTALL ELECTRICAL CONNECTIONS
Units are dedicated side supply products. They are not con
vertible to vertical air supply. A field-supplied plenum must
be used to convert to vertical air discharge.
Vl. STEP 6 -- PROVIDE FOR CONDENSATE DISPOSAL
NOTE:
Be sure that condensate water disposal methods corn
ply with local codes, restrictions, and practices.
Unit removes condensate through a lS/t;4-in. ID hole which is
located at the end of the unit. See Fig. 2 4 for" location of con
densate connection.
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