153
TEMPERATURE CONTROL
Increasing Discharge Temperature:
220 F — Cylinder Head Fan ON
230 F — Injection Valve OPEN
295 F — Compressor SHUTDOWN alarm
Decreasing Discharge Temperature:
(See Fig. 38)
230 F — Compressor alarm/comp RESET
210 F — Injection Valve CLOSED
175 F — Cylinder Head Fan OFF
6.7 — PWM Valve
The Carlyle pulse width modulation (PWM) valve is a
robust high cycle capacity control valve designed to modu-
late and control compressor capacity from 20% to 100% of
compressor full load. In conjunction with the Carlyle smart
Fig. 38 — Discharge Temperatures
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