Crown GMT-6-6 Installation & Operation Manual page 18

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
OPERATION INSTRUCTIONS (Continued)
Condensing Drain
A thermostat is located in the drain assembly and is activated by the temperature of steam.
The thermostat opens the cooling solenoid valve, supplying water to the drain to condense the
steam.
Automatic Blowdown Valve
If the unit has an automatic blowdown valve, it is activated by the main power switch. The
boiler will drain should the main power switch be turned "OFF."
Safety Lockout Conditions
High Temperature Condition
A high temperature safety device is installed on the boiler. Should the temperature exceed the
limit of this device, the boiler will be shut down and be put in a state of lockout. The
"Temperature" pilot light (Red), and the "Standby" pilot (amber), will come on.
High Pressure Condition
A high pressure safety switch is installed on the boiler. Should the pressure exceed the limit of
this device, the boiler will be shut down and be put into a state of lockout. The "Pressure" pilot
light (Red), and the Stand By pilot (amber), will come on. Should this device fail to operate, the
safety relief valve will open.
Low Water Condition
A second low water safety cut off is supplied with the boiler. Should the water level fall below
normal operating levels, this device will activate and put the boiler in a state of lockout. The
"Low Water" pilot light (Red), and the "Stand By" pilot (amber) will come on.
PART NUMBER 10072R1 18 2005-09-21