Service Manual

Specifications

TCO Limit Residential 188°F (87°C), Commercial 199°F (93°C)

Residential Temperature

Set Point Range

60°F (16°C) to 160°F (71°C) (Approximate temperatures)

Blower Temperature

Switch

Normally closed, opens @ 165°F (74°C), auto reset @ 130°F (54°C).

Blower

TTW1

115VAC, 60Hz, 3.1 amps, 3000 RPM, 42CFM@1.5" W.C.

TTW2

115VAC, 60Hz, 3.1 amps, 3000 RPM, 68CFM@0.4" W.C.

Pressure switch

TTW1 Models:

Normally open, closes on vacuum increase @ -.68, opens on vacuum decrease @ -.65

TTW2 Models:

Normally open, closes on vacuum increase @ -1.28, opens on vacuum decrease @ -1.25

Power supply Dedicated 115VAC, 60 Hz, 15A

Approved Gas Type Natural or Propane. Unit must match gas type supplied.

Venting System Power vent through the wall or vertical through the roof

Approved Vent Materials PVC, CPVC or ABS

Gas Supply Pipe Minimum 1/2" NPT (schedule 40 black iron pipe recommended)

Minimum Clearance

for Servicing

18" from top, 24" from front, 4" sides and rear.

Water Supply Pressure 150 PSI maximum allowable working pressure. Check local codes for supply pressure

Gas Pressure 5.0" W.C. min. for Nat gas, 11.0" W.C. min. for L.P. gas, 14.0" W.C. maximum (Nat. & L.P.)

Commercial Temperature

Set Point Range

80°F (27°C) to 180°F (82°C) (Approximate temperatures)

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