Nordson NH-4 Customer Product Manual page 25

7
6
5
Figure 8 Thermostat Replacement
1. Socket head screws
2. Lock washers
3. Cover
4. Electrical enclosure

NOTE:
DO NOT REMOVE ITEM 12 PLUG.
© 2023 Nordson Corporation
1
2
3
Tighten screws (1) to
1.11−1.66 kg m
(8−12 ft-lbs)
4
5. Thermostat
6. Lock washer
7. Screw
8. Set screws
3. Carefully install the thermostat probe into the passage body bore stamped T (4).
4. Using screws (7) and lock washers (6), secure the thermostat bracket (if used) and
the thermostat (5) to the electrical enclosure (4) and tighten securely.
5. Connect electrical lead 1 to the COMMON terminal on the thermostat.
6. Connect electrical lead 2 to the NORM CLOSED terminal on the thermostat.
7. Using the six socket-head screws (1) and lock washers (2), install the electrical
enclosure cover (3). Tighten the socket-head screws 1.11−1.66 kg•m (8−12 ft-lb).
8. Before operating the heater, make sure the thermostat is adjusted. Refer to the
Heater Operation for thermostat adjustment procedures.
12
8
T
11
9. Heat limiter
10. Heater cartridge
11. Thermostat
12. Body plug
NH-4 Heaters 19
8
9
HL
10
1602369-05