AI
SERIES STEAM BOILER WITH T100 CONTROL
INSTALLATION INSTRUCTIONS
4211-195 05-22-12
Page 13
BOILER CIRCUIT BOARD SET-UP
STARTING THE BOILER FOR THE FIRST TIME (continued)
NOTE:
When the boiler is started with an empty tank, the room steam valves will open to release the air pressure created during water fi ll. Once the tank
has fi lled, the valves will operate normally, opening only when steam needs to be released to a room to increase its temperature. Also, whenever a steam
valve opens to release steam to a room, the boiler heating is disabled for a few seconds. This is designed to increase the elements’ working life.
Set the BOILER OPERATION switch to the right (red showing) or set the optional run clock to a “RUN” position. The BOILER ON light, both room
STEAM VALVE OPEN lights and the WATER VALVE OPEN light should turn on, one heat contactor will close and the boiler will start
fi
lling with water.
The water will become visible in the water gage a few seconds later. In a short time, the feedwater valve and its light will turn off, the steam valve lights
will turn off, the BOILER HEATING light will turn on and second heating element contactor will close. The boiler will continue heating until it reaches its
operating pressure of approximately 4 to 6 psi, then the BOILER HEATING light and one contactor will turn off.
During normal operation, the water level
should always be visible in the lower half of the gage glass.
Check for steam and water leaks. Repair any leaks before continuing.
VERIFY T100 INSTALLATION
After all connections have been made, and the boiler operation veri
fi
ed (per previous section), make sure the interface box is turned on (PWR light on)
and power is turned on to the room light (if installed) and the boiler is set to RUN.
• On the boiler: the room steam valve should be closed and the ROOM STATUS lights should be off.
• At the Control: touch the bottom of the T100 screen to light the display. With the icon lit brightly on the display, press the OK switch. A small
should light below the T100 display, the interface board’s two lights should be lit (left light shows power is on, right light indicates room should be
heating), the room steam valve should open and the boiler’s ROOM STATUS lights should light steadily.
• (Optional) Room Light
(if installed)
: With the T100 display lit, press the T100’s switch. There should be a small icon lit below the display
and the room light should turn on.
If there are any blinking lights or other failures, recheck all connections. Contact Technical Support for assistance.
OPERATING INSTRUCTIONS
The AI boiler steam generation is based on two operating systems. The
fi
rst is the boiler itself, maintaining water levels and boiling the water to create
steam for use in a steam bath. The second is the steam room control circuit, maintaining a comfortable steam bath by releasing steam from the boiler
only when needed to raise the temperature in the steam room. The boiler’s control circuit board is used for both systems so the boiler must be running
before starting a steam bath. And the boiler may run continuously without affecting the steam room temperature. In this way the boiler can be left running
so it is ready to produce steam immediately when the T100 is used to start a steam bath.
Switch Location
Jumpers, JP101 & JP201
Place jumper on middle and top pin for use with T100
JP101
JP201
TP1
TP2
JP1
JP3
J1
Drain Timing
Select, JP3
Bath Time
Select, JP1
Place jumper on one pin
for 12, 18 & 24kW boilers
Place jumper on both pins
for 30, 36, 42 & 48kW boilers
Place jumper on one pins
when using the T100 control
TP1, TP2 & J1:
used for Service only.
Do Not Jumper!
From T100
Interface Box
Temp Sensor
Bypass
