1-31
24 VOLT CIRCUIT
ON UNITS WITH INTERFACE BOARDS
24V
XFMR
K3
LED 24V
INTERFACE
BOARD
J1-6
LED GV
20-PIN
TERMINAL
BLOCK
OPTIONAL
DSS
10
19
20
GAS
VALVE
NOTE: On units not equippedwith a drain safety switch, ajumper connects pins 10 and 19.