Optional Equipment
5–6 INS 61301607027 Rev A US
CHECKING THE HEATER
CIRCUIT CONNECTIONS
CAUTION
IMPORTANT: The element flange bolts, element terminals, contactor
terminals and customer three-phase supply terminals must be tightened to
the specifications shown in Figure 5–4 on page 5–7 (GTS-30A) or
Figure 5–5 on page 5–8 (CAS-45A).
To check the heater circuit connections for tightness:
1. Check the torque of the three-phase supply terminals. Tighten
connections to 110 in-lbs.
2. Check the torque of the contactor terminals. Tighten connections to 45
in-lbs.
3. Check the torque of the heating element terminals. Tighten terminals to
20 in-lbs.
4. Check the torque of the heating element flange bolts. Tighten the bolts
to 22 ft-lbs in the sequence shown in Figure 5–4 and Figure 5–5.
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