Installation
Explosion-Proof Refrigerator
and Freezer
Installation
IMPORTANT: PLEASE READ CAREFULLY
This unit is for free standing installation only. The appropriate materials and
wiring methods must be used in order to comply with current NFPA No. 70
NEC. for Class I, Group C and Group D; Class I Zone 1 Group IIB Hazardous
Locations and Local Codes.
Determine the total amount of current presently being used by other apparatus
connected to the circuit that will be used by this unit. It is critical that this added
current
must
not exceed the rating of the fuse or circuit breaker in use.
The Explosion-Proof Refrigerator/Freezer is supplied with a special junction
box located on the rear of the unit.
The National Electrical Code (NEC) must be referred to for proper fusing and
service conductor size and type.
Power to the unit must be supplied using permanent wire connections, as a
line cord is not provided. The service conductors should be connected to the
three conductors inside the junction box by a qualified electrician.
The refrigerator/freezer must be connected to a single phase system with
ground. The circuit live is connected to the refrigerator/freezer black while th
e
white connects to the system neutral and green/yellow conductor is grounded.
Screw type cover
Connect Black to system live
GREEN/YELL
Connect White to system neutral
After all connections are made, carefully fold up the conductors inside the
junction box and thread the lid onto it.
Electric Connection Check Points
•
Have proper connections been made at the junction box?
•
Is the junction box lid fastened tightly to the junction box?
•
Are all wire connections secure?
•
Are the service conductor sizes adequate to carry rated load?
•
Is the unit properly grounded?
•
Is the unit connected to a properly fused branch circuit?
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