Johnson Controls CIFC006B21S, Руководство по установке и обслуживанию

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PMGB0374
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8.2 Electrical Wiring Capacity
8.2.1 Field Minimum Wire Sizes for Power Supply
•
This equipment can be installed with a GFCI, which is a recognized measure for added protection to
a properly grounded unit. Install appropriate sized breakers / fuses / overcurrent protection switches
and wiring in accordance to local, state and NEC codes and requirements. The equipment installer is
responsible for understanding and abiding by applicable codes and requirements. Failure to use a GFCI
can result in electrical shock or fire.
• Communication cabling should be a minimum of 18-Gauge, 2-Conductor, Stranded Copper. Shielded
cable must be considered for applications and routing in areas of high EMI and other sources of
potentially excessive electrical noise to reduce the potential for communication errors. When shielded
cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls
guidelines. Plenum and riser ratings for communication cables must be considered per application and
local code requirements.
• Do not operate the system until all the check points have been cleared.
(A) Verify that electrical resistance is more than one megaohm by measuring the resistance between
the ground and the terminals of the various electrical components. If less than one megaohm, do not
activate the system until the electrical current drain is found and repaired.
(B) Check to ensure that the stop valves for the outdoor unit are fully opened, and then start the system.
(C) Apply power to the outdoor unit(s) at least 12 hours prior to operation of the system for preheating of
the compressor oil.
•
Do not touch any of the parts by hand at the discharge gas side since the compressor chamber and the
pipes at the discharge side are heated higher than 194
o
F (90
o
C).
Heat Pump System Heat Recovery System
8.2.2 Details of Electrical Wiring Connection
The electrical wiring capacity of the outdoor unit should be referenced according to the "Installation and
Maintenance Manual" for the outdoor unit. Adjusting the DIP switches may be required depending on the
arrangement with the outdoor unit.
Select wiring capacity according to Table 8.1. Install a GFCI and main switch as shown in each of the
system diagrams below.
Outdoor
Unit
Indoor
Unit
Switchbox
Outdoor Unit
Power Supply
Indoor Unit
Power Supply
Indoor
Unit
Indoor
Unit
GFCI
Main
Switch
GFCI
Main
Switch
Refer to the “Installation and Maintenance Manual”
for the connected outdoor unit for details of wire,
GFCI and main switch for outdoor unit.
Outdoor Unit
Power Supply
Outdoor
Unit
Change-Over
Box
Indoor Unit
Power Supply
Indoor
Unit
Switchbox
Indoor
Unit
Indoor
Unit
GFCI
Main
Switch
GFCI
Main
Switch
Refer to the “Installation and Maintenance Manual”
for the connected outdoor unit for details of wire,
GFCI and main switch for outdoor unit.