Bananza UHD 75, Installation, Operation & Service Manual

Page: 27 / 60

SECTION 8 : A
IR
S
UPPLY
19 of 47
SECTION 8 : AIR SUPPLY
8 .1 Separated Combustion Installation
When installed as a separated comb u stion heater
(UHD[X]S), the air for comb u stion is dra w n in from
o u tside the b u ilding.
8 .2 Unvented Installation
It is important to ens u re that there is adeq u ate fresh
air s u pply at all times for both comb u stion and
heating req u irements in accordance w ith local and
national codes.
8 .3 Buildin g Ventilation
Where ventilation is req u ired, air m u st be taken from
an o u tside point w here it is not likely to be
contaminated or obstr u cted.
8 .4 Outside Combustion Air Supply
If o u tside comb u stion air s u pply is req u ired,
separated comb u stion model (UHD[X]S) heaters
m u st be u sed.
Caution: If the b u ilding has a slight negative
press u re or corrosive contaminants s u ch as
halogenated hydrocarbons are present in the air, an
o
u tside comb u stion air s u pply to the heater is
req u ired. Seal all comb u stion air pipe joints.
The flexible air d u ct may have to be ins u lated to
prevent condensation on the o u ter s u rface. The
o u tside air terminal m u st not be more than 1' (31
cm) above the vent terminal.
8 .4.1 Len g th Re q uirements
Follo w the constraints listed on Page 13, Section 7.7 .
WARNING
Explosion Hazard
Equipment must have access to
uncontaminated air at all times.
Failure to follow these instructions can result
in death, injury or property damage.