National Comfort Products CPE Series, Руководство по установке

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10
Installation Manual for Comfort Pack Electric Units
When locating the room thermostat, it should be in the natural
circulating path of room air. Avoid locations where the thermostat
would be exposed to cold air infiltration; drafts from windows,
doors or other openings leading to the outside; exposure to air
currents from warm-or-cold air registers or to exposure where
the natural circulation of the air is cut off, such as behind doors,
above or below mantels, shelves, etc.
Electrical - Low Voltage
Low Voltage Maximum Wire Length
Table defines the maximum total length of low voltage wiring
from the outdoor unit, to the indoor unit and to the thermostat.
24 VOLTS
WIRE SIZE MAX. WIRE LENGTH
18 AWG 150 Ft.
16 AWG 225 Ft.
14 AWG 300 Ft.
Thermostat Connections Models
Electrical
All wiring must be installed in accordance with applicable
codes.
The unit is factory wired for 230/1/60 power. For 208/1/60
power systems, the wiring to the primary side of the control
transformer should be changed from the 240-volt connection
to the 208-volt connection to provide proper operation of the
control system.
The operating voltage of the unit is from 197 to 253 volts.
Operating the equipment outside of these limits will void the
warranty.
Electrical Supply and Connections
All electrical wiring and connections, including electrical
grounding must be made in accordance with the National
Electric Code ANSI/NFPA No. 70 (latest edition) or, in Canada,
the Canadian Electrical Code, Part I-C.S.A. Standard C22.1. In
addition, the installer should be aware of any local ordinances or
utility company requirements that might apply.
Check the rating plate for the supply voltage and current
requirements. A dedicated line voltage supply with fused
disconnect switch should be run directly from the main electrical
panel to the unit. All external wiring must be within approved
conduit and have a minimum temperature rise rating of 60°C.
Conduit from the disconnect switch must be run so as not to
interfere with the service panels.
Controls
Field wiring between the unit and the wall thermostat (by others)
may be low voltage for Class 2 systems. The location of the wall
thermostat should be 4 to 5 feet above the floor and carefully
selected so that the thermostat senses the temperature of the
largest conditioned area, without being influenced by drafts, sun
exposure or outside temperature.
Electrical Connections
NOTE: Make certain that the volts, hertz, and phase correspond
to that specified on the unit rating plate, and that the service
provided by the utility is sufficient to handle the additional load
imposed by this equipment.
Make all electrical connections in accordance with the National
Electrical Code and any pertinent local codes or ordinances.
Use a separate branch electrical circuit for this unit. Locate a
disconnecting means within sight of and readily accessible to
the unit.
a. Line Voltage Connections
b. Connect the single phase power supply to unit fuse
blower terminal L1 and L2
c. Connect ground wire to lug
d. Low Voltage Connections
NOTE: IF A 2 STAGE THERMOSTAT IS NOT USED
CONNECT BOTH WHITE(W1) AND ORANGE(W2)
WIRES TOGETHER.
THESE WIRES ARE NOT PRESENT ON CPE4XX00-U
MODELS