Heatcraft Refrigeration Products BEACON II H-IM-79E - Manual (Page 8)

8
Single System With Multiple
Evaporators
• Check all wiring connections to be sure
they are correct and tight.
• On the condensing unit
- Check the setting of time delay relay. It
should be set at 1 minute (the second
marker).
- Check the low pressure switch setting on
freezer units. Refer to H-IM-CU. On some
condensing units, the low pressure switch
has a fixed setting and cannot be adjusted.
• Turn power on.
• On the MASTER evaporator
- DO NOT REMOVE the room sensor
- Use the “ PROGRAM REVIEW” button
to scroll through settings.
- Check “rEF” (Refrigerant Type).
Factory defaults are: air defrost
R-22, electric defrost R-404A.
Change to the refrigerant being used.
M = Master Evaporator S = Slave Evaporator CU = Condensing Unit
CU
M S
S
S
Start-Up Operation
- Check “bot” (Box Temperature).
Factory defaults are: air defrost
35°F and electric defrost –10°F.
Change to the desired temperature.
- Review and change other setting if
necessary.
- See procedures on page 12 on how to
change settings.
• On the SLAVE evaporators.
All Beacon II boards are shipped with the factory
default as a “MASTER” evaporator.
- DO NOT NEED TO REMOVE the Room
Sensor on any evaporator
- Each SLAVE Evaporator must be
changed to identify it as a SLAVE.
Use the “ PROGRAM REVIEW” button
to scroll until “SLA” appears, then
use the “SELECT” knob to select
“YES” then press “ENTER.”