OPERATING INSTRUCTIONS – ELECTRO–PNEUMATIC
25
SSR UP6 40, SSR UP6 50PE, SSR UP6 50PEI, HF50–PE,
EP50–PE, HP50–PE, HXP50–PE
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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r.ingersollrand.com
