Evaporator Operation - Marstair A2LSYSTEMATCH SMC 15 Technical Manual

3F.5 Drainage
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Make sure the drainage line is gradually lower than the drainage pan, so drainage line must be
downward sloping for easy drainage.
3G EVAPORATOR OPERATION
Persons working in and around the cold room must ensure that sources of ignition are not brought into the area.
Do not exceed Marstair guidance on cold room fill capacity; it is important to ensure that the cold room is not
overloaded with product to ensure adequate air movement.
Loading and unloading of product should be carried in a way to ensure that damage to the refrigeration containing
components cannot occur.
Smoking and naked flames should be prohibited within the cold room and the area around the condensing (outdoor)
unit.
In the rare case of a leak occurring. Immediately contact an F Gas approved refrigeration technician. Do not open
the door to the cold room. Keeping the door closed will help to maintain the storage temperature of the product and
prevent a potentially flammable mixture leaking into to the environment outside the cold room. If product has to be
removed from the cold room to be moved to another refrigerated storage facility, please undertake the following
procedure:
1. Keep unauthorised personnel away
2. Ensure no smoking, no naked flame and no other potential sources of ignition are present
3. Make sure there is adequate ventilation
4. Open the door to the cold room
5. Wait 30 seconds before entering the cold room
6. Remove product from the cold room as quickly as possible
7. Close the cold room and do not re-enter until the refrigeration technician says that it is safe to do so
If the leak is identified as occurring outside the cold room, but inside a building or enclosure ensure adequate
ventilation. No source of ignition shall be energised or brought into the area until the environment is proven to be
safe.
Example of recommended drainage line
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55008432-02