Operating instructions
DRAWER WARMER 
19 
SV504 SvcManual WV-4H(RW) 
DRAWER WARMER SECTION - CONTROL MODULE for RWT- STYLE UNITS 
ºF
ºC
LOAD
PROCESS
32
5
1
4
CONTROL MODULE 
SET SETPOINT TEMPERATURE 
Press an arrow key: 
  UP arrow to increase 
  DOWN arrow to decrease 
Release key when desired setpoint temperature 
is displayed. 
Reading is locked into memory 3 seconds after 
last key stroke. 
Minimum setpoint is 140ºF (60ºC) 
Maximum setpoint is 250ºF (121ºC) 
CHANGE DISPLAY MODE ( ºF or ºC) 
Press and hold UP arrow and DOWN arrow keys 
for 10 seconds. 
Release keys when display reads F C. 
Within 3 seconds, press UP arrow or DOWN arrow 
key until desired indicator (ºF or ºC) glows. 
The new value will lock into memory 3 seconds 
after last keystroke. 
PROCESS
ºF
ºC
LOAD
ºF
ºC
LOAD
HOLD
10 SEC.
PROCESS
ITEM DESCRIPTION 
1 
PROCESS Key: 
Press to view actual temperature of cavity. 
2 
4 Character LED Display: 
Normally shows SETPOINT temperature. 
3 
ºF or ºC Indicator: 
Glows to indicate if unit is configured for 
degrees Fahrenheit or degrees Celsius. 
4 
LOAD Indicator: 
Glows when heating element is energized. 
5 
Increment and Decrement Keys: 
  Press UP arrow to increase 
  Press DOWN arrow to decrease 










