Payne PA1Z030 Installation, Start-Up And Service Instructions Manual page 8

Route thermostat wiresthrough grmnmet providing a drip
loopatthepanel. C onnect lowvoltage leads tothethermo
statasshown in Fig.13.
Theunittransformer supplies 2 4-vpower f orcomplete s ys-
temincluding accessory electrical heater. T ransformer is
facto W wiredfor230v operation. If supply voltage is 208 v,
rewire transformer primary asdescribed in theSpecial Pro
cedures for208-v O peration s ection b elow.
E. Accessory Electric Heat Wiring
Refer to accessory electric heat installation instructions for
information on installing accesso W electric heat. Accessory
electric heat wiring is shown in Fig. 14.
F. Special Procedures for 208-V Operation
A. High-Voltage Connections
The unit must have a separate electrical service with a field
supplied, waterproof disconnect switch mounted at, or within
sight from the txnit. Refer to the unit rating plate fox" maxi-
mum flxse/circuit breaker size and minimum circuit amps
(ampacity) for wire sizing. See Table 3 fox" electrical data.
The field supplied disconnect may be mounted on the unit over
the high voltage inlet hole. See Fig. 2 4.
B. Routing Power Leads into Unit
Use only copper wire between disconnect and unit. The high-
voltage leads should be in a conduit until they enter the unit;
conduit termination at the unit must be watertight. Run the
high voltage leads through the hole on the control box side of
the unit (see Fig. 10 fox" location). When the leads are inside
the unit, run leads to the control box (Fig. ll). For single-
phase units, connect leads to the black and yellow wires; for
3-phase units, connect the leads to the black, yellow, and blue
wires (see Fig. 12).
C. Connecting Ground Lead to Unit Ground
Refer to Fig. 11 and 12. Connect the ground lead to the chas
sis using the unit ground lug in the control box.
D. Routing Control Power Wires
Form a drip loop with the thermostat leads
before routing
them into the unit. Route the thermostat leads through grom
meted hole provided in unit (see Fig. 10) into unit control box.
Connect thermostat leads to unit control power leads as shown
in Fig. 13.
1. Remove wirenut fl'om connection of ORG wire to BLK
wire. Disconnect the ORG transformer-primary lead from
the BLK wire. Save wirenut. See unit wiring label.
2. Remove the wirenut from tile terminal on the end of the
RED transformer-primary lead.
3. Save the wirenut.
4. Connect the RED lead to the BLK wire from which the
ORG lead was disconnected. Insulate with wirenut from
Step I.
5. Using the wirenut removed fl'om the RED lead, insu
late the loose terminal on the ORG lead.
6. Wrap the wirenuts with electrical tape so that the metal
terminals cannot be seen.
Indoor blower motor speeds may need to be changed for 208 v
operation. Refer to Indoor Airflow and Airflow Adjustments
section on page I4.
HIGH-VOLTAGE LOW-VOLTAGE
POWER WIRING WIRING ENTRY
ENTRY HOLE HOLE
o
o , ,9 : , o
=7== .............. _," ' 7. /_ .................... X;: =
Fig. 10 -- Unit Electrical Connection Entry Holes
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