Weather-Rite UHA100 Installation, Operation & Service Manual - page 39

SECTION 11: O

PERATION AND 

M

AINTENANCE

31 of 51

Do not use a disconnect switch for control of 

heater. Disconnect switch will turn off the fan. 

Heat exchanger could be damaged. Warranty will 

not cover damage to the heat exchanger if 

operated improperly. Only use the disconnect 

switch for turning off heater for service or during 

off-season.

11.5 External Controls

External controls may include time switch, interlock 

switch, room thermostat and frost thermostat. 

Operate each control to ensure that they function 

correctly. Set the switches (if fitted) and 

thermostat(s) to the users’ requirements. 

11.6 Complete Start-Up

Ensure that all covers are fitted correctly and all test 

points are properly sealed.

11.7 Instruction to the User

Explain the controls of the heater to the user 

including how to turn it on and off, using the controls 

equipped on site. 

Give this manual to the user.

Ensure that the user is shown and understands the 

importance of maintaining clearances to 

combustibles on Page 8, Figure 4, installer 

responsibility on Page 5, Section 2 and user 

instructions on Page 32, Section 12 and all 

warnings defined in this manual.