Hoshizaki Steelheart Series Service Manual page 24

2a. Cabinet Control Module Display Icons: 4A7178-01
PR46B: L-5 to M50052H, M50073K and Later; (-D2): ALL
PR60B: L-5 to M50007H, M50025L and Later; (-D4): ALL
PR67B(-D2)(-D4): ALL
PR93B(-D2)(-D4)(-D6): ALL
Icon Meaning
Cooling Icon used for Cabinet Fan Motor operation
Cabinet thermistor calling for cooling. Cabinet fan motor energized if compressor is energized.
Alarm for Cabinet
Appliance is in alarm. See "III.D. Alarm Safeties" for details.
a) Cabinet Control Module 4A7178-01 Display Layout
Cooling Icon
(Cabinet Fan Motor)
Alarm Icon
Fig. 4
b) Cabinet Control Module 4A7178-01 Electrical Layout
3(F) yellow (Y) Cabinet Fan Motor(s) Relay
Fig. 5
Cabinet Control Module Icons
Cabinet Control Module
On/Off Button
Service Button
Cabinet Control Module
4(L) black (BK) Line
7(N) white (W) Neutral
8(L) black (BK) Line
Up Button
Down Button
24
Front Panel
9/10 Cabinet Thermistor