TTW1 Universal Service
Replacement Blower
MITW -12 / -15 Series
Step 17. Secure the junction box cover, P/N
Tighten (2) screws on junction
box to secure cover.
Step 18. With the blower and transformer assembly
fastened to the water heater, the
remaining ends of the blower wire harness can now be attached with the cord sets to the blower and then the white connector to the receptacle in the jacket head.
Plug cord sets into 
receptacles in blower.
Plug white connector into receptacle in jacket head.
Be sure that vent pipe is properly seated in the top side of vent adapter.
Step 19. Find the rubber vent adapter kit, P/N
kit. Install the 2” vent adapter on the exhaust side of the universal blower.
Discard the vent terminal included with
the vent adapter kit.
Note: In order to prevent condensate from draining back into the blower (vertical or horizontal runs), an optional condensate kit is available as a service part (Condensate kit, P/N
Rubber vent adapter
Adequately tighten both
clamps on the vent adapter.
Page 19
