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#101810 - 07/16/03 03:02 PM APPROVAL OF EQUIPMENT FOR AMMONIA REFRIGERATION
Tony Moscioni Offline
Moderator

Registered: 05/15/01
Posts: 144
Loc: CANADA
APPROVAL OF EQUIPMENT FOR AMMONIA REFRIGERATION


Some ammonia refrigeration rooms are classified as non hazardous. These may
be in ice rinks or large food processing plants etc.

Memo 18-24-96 gives some advice, but it is not clear that some ammonia rooms
are hazardous and some are not.

If MCCR classifies an ammonia room as a "Class T Machinery Room" then the
room is non-hazardous.

If MCCR classifies it as a "Machinery Room", then it is hazardous location,
Class 1 Division 2.

This follows the CSA specification B52, Mechanical Refrigeration Code used
by the MCCR for Pressure Vessels.

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#101811 - 10/26/03 11:48 AM Re: APPROVAL OF EQUIPMENT FOR AMMONIA REFRIGERATION
crash Offline
Member

Registered: 10/21/03
Posts: 130
Loc: Calgary Canada
What is the MCCR? and Why would one room be classified as Class T Machinerey Room and the other be classified as a Machinery Room? I worked on an amonia refrigeration for a food shipping and recieving company, and it was all done as a non-hazardous location.

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