32
Removal and Replacement of the Bladder
1) Turn off the (green) bladder gate valve located at the front of the
HEATMOR™ furnace to the left of the thermometer.
2) Remove the hose clamp from the bladder gate valve.
3) Pull the bladder hose away from the bladder gate valve and let the
water drain from the bladder.
Be careful, it could be warm.
4) Carefully remove the old bladder and install the new bladder. This
can be done in two ways, you can either pull the bladder down
and replace it from inside of the unit or you can remove the 4 roof
screws and slightly elevate your roof and remove the top panel to have
a clear access to the bladder.
5) Note: the black fitting on the bladder is a left handed thread.
6) Open the bladder gate valve and follow the “Filling the Bladder
with Water” instructions.
Bladder Gate Valve and Bladder Hose
Principle of the Bladder Gate Valve and Bladder Hose
The bladder gate valve provides water flow control in maintaining the bladder and filling the furnace with water.
The bladder hose provides a means for the water to freely flow from the water jacket to the bladder allowing
expansion and contraction.
WHEN THE HEATMOR™ FURNACE IS OPERATING,
THE BLADDER GATE VALVE MUST BE OPEN.
Maintenance / Result
To maintain the bladder gate valve, open and close the valve periodically to prevent it from seizing. Ensure that
the hose clamp is tightly fastened, securing the bladder hose to the bladder and to the bladder gate valve.
Removal and Replacement
1) Turn off the power to the furnace.
2) Drain some of the water from the furnace to prevent water from draining while you are
replacing the valve.
3) Loosen the hose clamp holding the bladder hose to the bladder gate valve.
4) Remove the bladder hose from the bladder gate valve and let the water drain from the bladder.
Bladder Gate Valve
ABSOLUTELY NO FIRE IN THE FIREBOX WHEN PERFORMING THIS REPAIR. DO NOT
PERFORM THIS REPAIR WHEN UNIT WATER TEMPERATURE IS UNSAFE. ALWAYS WEAR PROPER
PERSONAL PROTECTIVE EQUIPMENT WHEN WORKING WITH WATER AND CHEMICALS.
ABSOLUTELY NO FIRE IN THE FIREBOX WHEN PERFORMING THIS REPAIR. DO NOT
PERFORM THIS REPAIR WHEN UNIT WATER TEMPERATURE IS UNSAFE. ALWAYS WEAR PROPER
PERSONAL PROTECTIVE EQUIPMENT WHEN WORKING WITH WATER AND CHEMICALS.
Summary of Contents for 400-4S
Page 1: ...Outdoor Furnaces TM SAVE THESE INSTRUCTIONS...
Page 10: ...5 HEATMOR Stainless Steel Outdoor Furnace Model 400 4S Chapter 1...
Page 73: ...68...
Page 88: ...83 PROBLEM CAUSE SOLUTION PROCEDURE...
Page 92: ...87 Outdoor Furnaces...
Page 93: ...88 NOTES...
Page 94: ...89 wiring diagram...
Page 95: ...90 Revised Manual on 07 11 12...
