Ingersoll-Rand EP50-PE, SSR UP6 40, SSR UP6 50PE manual Operating Instructions - Electro-Pneumatic

OPERATING INSTRUCTIONS – ELECTRO–PNEUMATIC 25

LEGEND

1PS	Switch, pressure
1RPS	Switch, high refrigerant pressure (option)
2RPS	Switch, fan pressure (option)
RST	Switch, reset
1SV	Valve, solenoid (load) N.C.
3SV	Valve, solenoid (blowdown) N.O.
5SV	Valve, solenoid (modulation option)
6SV	Valve, solenoid (modulation option)
S1	Switch, selector (modulation option)
SS	Switch, selector Off/On
TDR1	Relay timed delay (10 sec.)
TDR1a	Contact, relay – timed
TDR1b	Contact, relay – instant
TR	Relay, restart, time delay (6 min)
TRa	Contact, relay

VAR Varistor

Barrier terminal strip

NOTES

1.Approved fused disconnect or circuit breaker per N.E.C. requirements must be provided by customer.

2.Dashed lines represent wiring by customer.

3.Sizing of electrical components not supplied by Ingersoll Rand is the responsibility of the customer and should be done in accordance with the information on the compressor data plate N.E.C. and local electrical codes.

4..When changing the supply voltage, ensure that:

a)The motor and the transformer are rewired for the new voltage

b)The motor overload is adjusted to the proper setting.

5.Verify actual motor conditions with motor schematic.

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EP50–PE, HP50–PE, HXP50–PE