When installing in an un-vented configuration:
• A factory supplied flue cap/diffuser (P/N: WVE-GALV) must be used.
• Flueing of the space is required to dilute the by-products of combustion. Sufficient displacement of
fresh air intake and exhaust by-product must be provided.
• The minimum clearance between the air intake and the exhaust terminal is 1220mm.
NOTE:
When
installing in a U-bend configuration, use caution to separate flue gases from heater intake.
• A minimum positive air displacement (movement) for
I2H and I2L gas
: 2m
3
/hr per kW is required.
• A minimum positive air displacement (movement) for
I3P Gas:
2.3m
3
/hr per kW is required.
NOTE:
Gravity or mechanical means may be used to accomplish the air displacement. Local codes
may require that the mechanical exhaust system be interlocked with the electrical supply line to the
heaters, enabling both to function simultaneously.
• The use of outside combustion air intake is recommended.
Figure 3.24
•
Minimum end clearance for unflued heater
310mm
WARNING
!
Not for residential use.
The use of unflued tube heaters in residential indoor spaces may
result in property damage, serious injury or death. Use unflued operation in commercial and
industrial installations with proper ventilation rates only.
310mm
Optional Unflued Operation
Figure 3.23
•
Sidewall Flueing - Side View
Building (Combustible) Overhang
Sidewall
Twin Skin Flue
Single Skin Flue
Wall Thimble
Sidewall Flue Cap
150mm
min.
1000mm min.
Twin Skin to Single Skin Adapter
Heater
3.0
Installation
- GTD Series Installation, Operation, Maintenance and Parts Manual
Flue Requirements
26
