Dunkirk EXCELSIOR Series Installation, Operation & Maintenance Manual page 27

120 VAC
HYDROSTAT
MODEL 3250
24VAC FROM
TRANSFORMER
120VACTO
TRANSFORMER
TO OIL
BURNER
A¥
24VAC COIL
120VAC CONTACTS
INDIRECT WATER
H EATER, AQUASTAT
OR TH ERMOSTAT
ON
ZONE VALVE/PUMF
I-II PRIORITY
I1-1 ZR-ZC
I1-1 DPM-2
OPTION SWITCHES
AZ-4CP
/
KEY ,'
rll ON /
m-I OFF /,'
i
i
/
/
/
iI
/