Heatcraft Refrigeration Products H-IM-79E User Manual

Evaporators (Requires A Smart

 

•  Check all wiring connections to be sure

 

 

they are correct and tight. 

 

•  On the condensing units 

 

 

- 

Check setting of time delay relay.  

 

 

 

It should be set at 1 minute  

 

 

 

(the second marker). 

 

 

- 

Check the low pressure switch  

 

 

 

setting on freezer units. It must be set 

 

 

 

to 0 psig cut-out, 10 psig cut-in to  

 

 

 

allow positive start and operation, 

 

 

 

especially in cold ambient. This  

 

 

 

can be changed to a higher value in  

 

 

 

warmer climates. On cooler units,  

 

 

 

the low pressure switch has a fixed  

 

 

 

setting and cannot be adjusted. 

 

•  Turn power on. 

SYSTEM 1

SYSTEM 2

SYSTEM 3

SYSTEM 4

M = Master Evaporator 

S = Slave Evaporator 

CU = Condensing Unit

(See Smart Controller instruction manual for more details)

 

•  On the MASTER evaporator 

 

 

- 

DO NOT REMOVE the room sensor 

 

 

 

from any evaporator 

 

•  On the SLAVE evaporators. All Beacon II  

 

 

boards are shipped with the factory  

 

 

default as a “MASTER” 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.”

 

•  Use the Beacon II Smart Controller to  

 

 

set system parameters.  See Beacon  

 

 

II Smart Controller installation  

 

 

instructions for more details.