Nortek PPH3RF Series, Руководство по установке

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7
Figure 5. Supply Damper
AUTOMATIC DAMPER IS CLOSED
WHEN HEAT PUMP IS OFF
Figure 6. Drain Trap
Elbow
P-Trap
ELECTRICAL CONNECTIONS
WARNING:
To avoid electric shock, personal injury, or death,
turn off the electric power at the disconnect or the
main service panel before making any electrical
connections.
• Electrical connections must be in compliance with all
applicable local codes and ordinances, and with the
current revision of the National Electric Code (ANSI/
NFPA 70).
• For Canadian installations the electrical connections
and grounding shall comply with the current Canadian
Electrical Code (CSA C22.1 and/or local codes).
Pre-Electrical Checklist
√
Verify that the voltage, frequency, and phase of the
supply source match the specifications on the unit rating
plate.
√
Verify that the service provided by the utility is sufficient
to handle the additional load imposed by this equipment.
Refer to the unit wiring label for proper high and low
voltage wiring.
√
Verify factory wiring is in accordance with the unit
wiring diagram. See Figure 15 (page 16) , Figure 16
(page 17) , & Figure 17 (page 18) . Inspect for loose
connections.
Grounding
WARNING:
The unit cabinet must have an uninterrupted or
unbroken electrical ground to minimize personal
injury if an electrical fault should occur. Do not
use gas piping as an electrical ground!
This unit must be electrically grounded in accordance
with local codes or, in the absence of local codes, with
the National Electrical Code (ANSI/NFPA 70) or the CSA
C22.1 Electrical Code. Use the grounding lug provided
in the control box for grounding the unit.
Line Voltage
• It is recommended that the line voltage to the unit be
supplied from a dedicated branch circuit containing the
correct fuse or circuit breaker for the unit.
• An electrical disconnect must be located within sight
of and readily accessible to the unit.
This switch shall
be capable of electrically de-energizing the outdoor unit.
See unit data label for proper incoming field wiring. Any
other wiring methods must be acceptable to authority
having jurisdiction.
• Provide power supply for the unit in accordance with
the unit wiring diagram, and the unit rating plate.
• Connect the line-voltage leads to the terminals on the
contactor inside the control compartment. Extend leads
through power wiring hole. See Figure 7 . Connect L1
& L2 directly to the contactor.
• Use only copper wire for the line voltage power supply
to this unit as listed in Table 1 (page 8) . Use proper
Condensate Drainage
A 3/4” condensate fitting extends out of the side of the
unit as shown in Figure 6 . The drain trap, shipped in the
electrical compartment, must be installed to prevent water
from collecting inside the unit.
1. Thread the elbow provided with the unit into the drain
connection until hand tight.
2. Connect the condensate tubing onto the fitting, forming
a trap ( Figure 6 ) near the drain connection.
3. Route the condensate tube from the trap to a suitable
drain.
NOTE:
For proper drainage, make sure the trap
is level to the ground and tubing outlet is below trap
level.
Figure 7. Power Entry
Low Voltage
High Voltage