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8
NH-4 Heaters
NH-4 Heater Versions
Installation
Location and Mounting
1602369-05
Refer to the Parts section for descriptions, specifications, and part numbers of available
NH-4 heaters.
WARNING:
Allow only qualified personnel to perform the following tasks. Follow the
safety instructions in this document and all other related documentation.
WARNING:
All EX approved heaters have a torque specification for the enclosure cover
bolts of 1.11−1.66 kg•m (8−12 ft-lbs). Before installing the cover make sure it and the top
of the enclosure are clean and free of dirt and debris. Use only bolts of the grade speci-
fied on the equipment label. Tighten the bolts to the torque specification.
WARNING:
The purchaser should make the manufacturer aware of the external effects
or aggressive substances that the equipment may be exposed to.
WARNING:
Installation must be performed by a qualified electrician and conform to all
federal, state and local codes.
See Figure 3.
Mount the NH-4 heater in a vertical position on a wall or panel, allowing adequate
surrounding space to perform periodic maintenance. Always locate the heater as close to
the spray operation as possible.
NOTE:
All ATEX approved NH-4 heaters include a kit with several labels in different
languages. Choose and install the appropriate language label for your NH-4 heater.
© 2023 Nordson Corporation
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