Radiant BH15UT, Installation, Operation & Service Manual

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RADIANT SERVICES™ I
NSTALLATION
O
PERATION AND
S
ERVICE
M
ANUAL
50
SECTION 11: VENTING
11.1 General Ventin g Re q uirements
11.1.1 Type C
12
, C
32
& C
62
Appliance
Room Sealed
The heaters are designed to be installed as room sealed
appliances. The fl
u e and air intake are r u n as separate
pipes to the special concentric w all or roof terminal. The
w ire mesh inside the fresh air adapter on the heater m u st
be remo v ed prior to installation. See Page 52, Figure 33 .
11.1.2 Type B
22
Appliance
The fl u e m u st be fitted w ith a lo w resistance terminal. See
Page 52, Figure 33 .
11.1.3 Fl u e Installation
The fan o u tlet may discharge v ertically or horizontally.
Connection sho u ld be made u sing 100 mm minim u m
diameter al u mini u m or stainless steel fl u e material to
National Standard and m u st be adapted to insert into the
100 mm fl u e adapter. Both fresh air s u pply and fl u e d u ct
shall not exceed 10,000 mm. BH15 and BH20 fl u e m u st
be ins u lated if longer than 5,000 mm. BH25 fl u e m u st be
ins u lated if longer than 8,000 mm. Contact the
man u fact u rer if more than 2 x 45° offset bends are
necessary. The fl u e m u st be self s u pporting.
Fans Horizontal Vertical
83 BWLG 190 x 75 (hole) 150 mm dia.
90 BWLG 190 x 75 (hole) 150 mm dia.
11.1.4 Fl u eless Installation
If the heater is being installed in an area w here
comb u stion prod u cts can be dissipated w ithin the
b u ilding, ens u re that the fan o u tlet is horizontal and a w ay
from the b u rner. Where installation is close to a w all
(perimeter system) or other obstr u ction close to the fan
o u tlet or w all angle mo u nted, install the heater so that the
fan t u be is the f u rthest a w ay from the w all or obstr u ction,
i.e. the fan w ill al w ays blo w into the b u ilding or a w ay from
the obstr u ction.
11.2 Ventilation Re q uirements
Detailed recommendations for air s u pply are gi v en in the
rele v ant National Standards. There m u st be an adeq u ate
s u pply of air for both comb u stion and general v entilation.
Air v ents sho u ld ha v e negligible resistance. Do not locate
air v ents w here they can be easily blocked or flooded, or
adjacent to any fl u es or extraction systems carrying
flammable v apo u r.
11.2.1 Fl u e Installation
Where the heater(s) is fl u ed, the space containing it m u st
ha v e a permanent o u tside air v ent w ith a minim u m
effecti v e area of 4.5 cm2 per kW of heat inp u t. If
mechanical v entilation is employed, the minim u m pro v en
airflo w rate shall be 2.35 m3/h per kW of heat inp u t.
If the fl u e is to be horizontally v ented thro u gh a w all, a
w ind-proof terminal m u st be fitted to o u tdoor v ent pipe to
pre v ent a back dra u ght.
11.2.2 Fl u eless Installation (EN 13410)
The installation room m u st ha v e a v ol u me of at least
10m
3
/kW of installed nominal heat inp u t. A minim u m of
10m
3
/h of exha u st air per kW of operating heat inp u t m u st
be v entilated o u t of the installation room by either thermal
or mechanical e v ac u ation. Appropriate exha u st and fresh
air openings m u st be pro v ided and exha u st fans
interlocked w ith the operation of the heating eq u ipment.
F u rther no exha u st system is necessary if the b u ilding air
change rate is greater than 1.5 per ho u r or the density of
operating heat inp u t is not greater than 5 W/m
3
.
WARNING
Carbon Monoxide Hazard
Multiburner systems are not approved for
unvented use and must be vented outdoors.
Unitary heaters installed unvented must be
interlocked with sufficient building exhaust.
Heaters must be installed according to the
installation manual.
Failure to follow these instructions can result
in death or injury.
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.