3
CONTENTS
Important Safety Information ................................................................................................. 5
I. General Information ............................................................................................................ 6
A. Construction .................................................................................................................. 6
1. One Section ............................................................................................................. 6
2. Two Section ............................................................................................................. 7
3. Three Section .......................................................................................................... 8
B. Sequence of Operation ................................................................................................. 9
1. Sequence Cycles and Shutdown ............................................................................. 9
a) Startup .............................................................................................................. 9
b) Cool Down ......................................................................................................... 9
c) Cool Down Achieved ......................................................................................... 9
d) Cool Down Restart ............................................................................................ 9
e) Defrost ............................................................................................................... 9
2. Sequence Flow Chart ............................................................................................ 10
C. Display Board ...............................................................................................................11
D. Control Board .............................................................................................................. 12
1. Control Board Layout ............................................................................................. 13
2. Features ................................................................................................................. 14
a) LED Display ..................................................................................................... 14
b) Guarded Access Menu ..................................................................................... 14
c) Service Menu ................................................................................................... 14
d) Alarm Signals ................................................................................................... 14
e) Defrost ............................................................................................................. 14
f) Default Safety Program ..................................................................................... 14
g) High Voltage and Low Voltage Cut-outs ........................................................... 14
3. LED Lights and Alarm Safeties Chart .................................................................... 15
4. Controls and Adjustments ...................................................................................... 17
a) Default Dip Switch Settings .............................................................................. 17
b) Unit Operation (Freezer/Refrigerator) (S3 dip switch 1) ................................... 17
c) Cabinet Light/Heated Glass Door (S3 dip switch 2) ......................................... 18
d) Door Switch Type (S3 dip switch 3) .................................................................. 18
e) Reach-In/Pass Thru Defrost Initiation Temperature (S3 dip switch 4) .............. 18
f) Display Board Operation (S3 dip switch 5) ....................................................... 18
g) Dual Temp Unit (S3 dip switch 6) ..................................................................... 19
h) Freezer Evaporator Fan Operation (except RFH1) (S3 dip switch 7) ............... 19
i) RFH1 Condensate Pan Heater Operation (S3 dip switch 8) ............................. 19
IMPORTANT
This manual should be read carefully before the unit is serviced or maintenance
operations are performed. Only qualified service technicians should install,
service, and maintain the unit. Read the warnings contained in this booklet
carefully as they give important information regarding safety. Please retain this
booklet for any further reference that may be necessary.
