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a separate regulator must be installed ahead of the
heater. Refer to Figure 2 for maximum allowable pres-
sure for stated model and gas.
See heater rating plate for minimum gas supply pres-
sure "For the Purpose of Input Adjustment"
on a multiple heater installation it may be possible to
use one large capacity regulator or an individual regula-
tor for each heater. Nevertheless, it is recommended
practice to make the entire pipe system a loop. Contact
your local representative or the factory for proper gas
pressure reducing design stage.
warning:
Do NoT eXCeeD ½ P.S.I. INleT PReS-
SURe To HeATeRS SHoWN IN FIGUReS 1 AND 2
6. electrical
All external wiring must be in accordance with the
existing electrical code. Use wiring diagram furnished
with heater. Be sure electric supply characteristics
match those called for on the name plate. The unit
must be electrically grounded in accordance with the
National electrical Code, ANSI/NFPA70, latest revision.
In Canada refer to Canadian electrical code CSA C22.1
7. tHerMOstat & lOcatiOn
Make sure that the electrical characteristics of the
thermostat match those of the heater controls. For best
results thermostat should be positioned 5 ft. above
floor where air can circulate freely around it. Do NoT
MoUNT directly to cold-side wall, in direct drafts or
directly beneath the infra-red heater.
8. VentilatiOn
a. The minimum intake and exhaust air openings shall pro-
vide for not less than 400 CFM for every 100,000 BTU
input except that the infiltration area may be included
in the intake area. The exhaust fan must be interlocked
with the heater thermostat. If a power exhaust fan
is used, it should be controlled by the thermostat or
humidistat
Figure 2
BTU/HR. RATING
MoDel
GAS
No.
NATURAl
PRoPANe
4030
30,000
30,000
4040
40,000
40,000
8050
50,000
50,000
8060
60,000
60,000
8070
70,000
9080
80,000
80,000
9090
90,000
90,000
9100S
100,000
100,000
9100
100,000
100,000
9120
120,000
120,000
9140
140,000
enerco Group, Inc. |Gas-Fired Infra-Red Space Heaters
GAS SUPPLY PRESSURE (W.C.)
MIN.
NAT.
l.P.
6.6"
11"
6.8"
11"
7.0"
11"
7.0"
11"
–
7.0"
–
7.0"
11"
7.0"
11"
7.0"
11"
7.0"
11"
7.0"
11"
–
7.0"
–
b.Where natural (gravity) ventilation is provided for
exhaust, the openings must be distributed above the
heaters (preferably at the peak of the roof) and the
areas of openings shall not be less than 300 square
inches for every 100,000 BTU input.
9. OperatiOns
Upon completion of electrical wiring, gas piping and
purging of gas lines to heaters, refer to the lighting
instruction plate attached to heater for proper lighting
procedure.
10. cleaning inFOrMatiOn
Blow out Venturi and burner face with compressed
air (25# max. pressure); also clean orifices (see Figure
2 for correct size drill). For detailed maintenance and
cleaning instructions contact your local representative
or factory.
warning:
GASKeT BINDeR MATeRIAl USeD
IN THIS HeATeR ASSeMBlY WIll TeMPoRARIlY eMIT
AN ODOR AND/OR VAPOR. USE VENTILATION (a OR
b) AND THIS CONDITION WILL CLEAR UP IN APPROXI-
MATelY 20 MINUTeS AND WIll NoT ReoCCUR.
warning:
Do NoT ATTeMPT To IGNITe THe
PIloT BY HAND oN HeATeRS eQUIPPeD WITH AUTo-
MATIC SPARK IGNITIoN.
warning:
THe STATe oF CAlIFoRNIA ReQUIReS
THe FolloWING WARNING: CoMBUSTIoN BY-PRoD-
UCTS PRoDUCeD WHeN USING THIS PRoDUCT CoN-
TAIN CARBoN MoNoXIDe, A CHeMICAl KNoWN To
THe STATe oF CAlIFoRNIA To CAUSe CANCeR AND
BIRTH DEFECTS (OR OTHER REPRODUCTIVE HARM).
nOte:
USe lATeST eDITIoN FoR All ANSI STAN-
DARD AND CANADIAN STANDARDS.
MAX.
MANIFolD
NAT.
l.P.
NAT.
14"
14"
5.6"
14"
14"
5.8"
14"
14"
4.3"
14"
14"
5.8"
14"
–
6.0"
14"
14"
5.8"
14"
14"
5.0"
14"
14"
5.0"
14"
14"
4.3"
14"
14"
5.8"
14"
–
5.5"
4
Operating Instructions and Owner's Manual
oRIFICe SIZe
l.P.
NAT.
l.P.
10"
43
52
10"
37
49
10"
30
45
10"
29
43
–
28
–
10"
37
49
10"
32
47
10"
31
46
10"
30
45
10"
29
43
–
28
–
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