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NOTES:
1. Stand-Alone Application: As shown, ERV will start when power is applied. Interrupt jumpers 6/8 and 7/9
for external control.
2. Jumpers between 6 and 8, and 7 and 9, will be factory added for stand-alone units.
3. Relay throughput:
1
/
3
hp, 120 vac, 10 amp, 240 vac.
4. On 575-v units transformer may substitute internal breaker on secondary for fuse.
5. Door switches are optional.
6. DPDT relay may be substituted. If so, pins 2, 5 and 8 will not exist.
Before performing service or maintenance operations on 62M
unit, turn off power switches to unit. Multiple switches may exist.
Electrical shock could cause personal injury or death.
LEGEND
3PDT — Three Pole, Dual Throw Relay NC — Normally Closed
COM — Common NO — Normally Open
DPDT — Dual Pole, Dual Throw Relay PRI — Primary
ERV — Energy Recovery Ventilator SEC — Secondary
MCA — Minimum Circuit Amps
Fig. 51 — Typical Wiring Schematic, 24-V Control Circuit