Installation; Electrical; Be Advised; Explosion-Proof Refrigerator And Freezer Installation - VWR 20EREEVWA Installation & Operation Manual

Installation

Electrical

Flammable Materials Storage and General Purpose units
must be connected to a grounded outlet matching the
nameplate and /or the information furnished in this manual. If
you are not sure about the outlet, you should contact a
qualified electrician for assistance. Explosion-Proof units must
be hardwired by a qualified electrician.
Explosion-Proof unit should always be connected to a
dedicated power source.
WARNING: DO NOT REMOVE, under any
circumstance, the grounding prongs from the 
3-prong power cord supplied with all units.
WARNING: DO NOT USE electrical extension
cords, it may result in voltage loss and possible
hazardous operation.

Be Advised

WARNING: Storage by user of any materials in
the product that may cause a deterioration of the
product shall be deemed to constitute abnormal
and improper usage of the product for purposes
of this warranty.
WARNING: Before connecting the final power
supply, check the electrical characteristics of the
unit nameplate to see that it is in agreement with
the power supplied. In addition, power should be
wired to the unit according to the electrical
schematic and all applicable codes. Only
qualified electricians should work on the
electrical portion of any unit installation.
WARNING: RISK OF CHILD ENTRAPMENT
Before you discard your old refrigerator or
freezer:
• Remove door(s).
• Leave the shelves in place so that children
may not easily climb inside.
GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Explosion-Proof
Refrigerator and Freezer
Installation
IMPORTANT: READ CAREFULLY. Below noted work is to be
performed by a qualified electrician.
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 top 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 the white connects to the
system neutral and green/yellow conductor is grounded.
Screw Type Cover
Connect Black
to System Live
Connect White
to System Neutral
Figure 1. Connection to single phase system
After all connections are made, carefully fold up the
conductors inside the junction box and thread the lid onto it.
Green/Yellow
Installation | 9