Weather-Rite UHA100 Installation, Operation & Service Manual - page 54

UHA L

OW 

P

ROFILE 

U

NIT 

H

EATER 

I

NSTALLATION 

O

PERATION AND 

S

ERVICE 

M

ANUAL

46 of 51

15.6 Flue Blower Vertical Installation for UHA[X][S] 30 - 75 Only

IT IS IMPORTANT THAT ONLY THE CORRECT FLUE BLOWER SPECIFIED FOR EACH MODEL TYPE 

IS USED WHEN REPLACING THESE ITEMS.

Carry out a start-up after working on or changing an flue blower. See Page 28, Section 11.

MODEL

UHA[X][S] 30 -75

UHA[X][S] 100 - 125

 Flue Blower P/N

90710404

90710403

To remove the blower, 

remove screws securing the 

fan and mounting plate to 

the vent box. 

To remove the blower from 

the mounting plate, remove 

screws.

Refit in reverse order.

To change the vent and air 

intake orientation from back 

to top, remove the blower 

and mounting plate as 

above.

Remove intake and exhaust 

covers from top of the 

heater.

Rotate the blower, mounting 

plate and gasket clockwise 

until the flue adapter lines 

up with the top hole. Secure 

screws.

If applicable, remove the air 

intake adapter from the back 

of the heater and install in 

the appropriate hole on top. 

Install intake and exhaust 

covers over the back holes.

Ensure sealed joints.

Ensure mounting plate 

orifice is clear and not 

obstructed.