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6
NH-4 Heaters
Description
1180
Model NH-4 Heater
P/N
Volts AC
Watts
WARNING
DO NOT OPEN WHEN
ENERGIZED OR WHEN
EXPLOSIVE ATMOSPHERE
IS PRESENT
Nordson Cororation
Figure 1 NH-4 ATEX Heaters
1. Enclosure cover
2. Fluid outlet
1602369-05
The Model NH-4 heaters are electrically operated, explosion-proof, high-pressure fluid
heaters, designed for use with both air and airless spray systems.
S/N
Amperes
Phase
BAR
PSI
BAS21UKEX0335
BAS00ATEX2170
G
Amherst
Ohio
44001 USA
3. High-pressure housing
4. Fluid inlet
See Figure 1. The standard NH-4 heater is available in both aluminum and stainless steel
versions. Refer to the Parts section for a complete listing of available heaters.
The heater can be wall or dolly mounted. The heater consists of an electrical enclosure
(6) and a fluid section. The electrical enclosure contains a thermostat adjustment for the
heater. Most versions of the NH-4 heater have internal thermostat controls so you must
remove the enclosure cover (1) in order to change the setting.
The fluid section consists of a fluid passage body (5) and high-pressure housing (3). The
thermostat probe, heater cartridge, and heat limiter are located within the fluid passage
body.
6
0598
1
2
3
4
5. Fluid passage body
6. Electrical enclosure
© 2023 Nordson Corporation
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