Penn A5 Series - Page 17

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The following figure shows the compressor, lo-spd aux relay, and hi-spd relay states for a two-speed evaporator fan
operating in normal refrigeration mode. The high-speed fan is on continuously.
Figure 10: Compressor, lo-spd aux, and hi-spd relay states for two-speed evaporator fan in refrigeration
mode
Table 9: Compressor, lo-spd aux, and hi-spd relay states for two-speed evaporator fans callout table
Item Description
Relay off
Relay on
Time
Compressor relay
Two speed
fan control
Low aux
relay
High
speed
relay
Continuous high-speed fan