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User Manual - Page 13

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13
Operating Instructions and Owner’s ManualMr. Heater Series Heater
SECTION 4
Engineering Specifications
ThetotalheatingsystemsuppliedshallbedesigncertifiedbyCSA
underANSIZ83.20alatestrevisionandCGA2.34alatestrevision.
A. Burner & Burner Controls
1.Burnersshallbecapableoffiringwithoneofthefueloptionsas
specifiedonthepurchasedocuments:NaturalGasorLP.
2.Burnersshallbesuppliedtofireatanyoneoftheinputratesas
specified.
40,000BTU/Hr. 125,000BTU/Hr.
60,000BTU/Hr. 150,000BTU/Hr.
80,000BTU/Hr. 100,000BTU/Hr.
175,000BTU/Hr.
3.Burnershallbeequippedwithadirectsensesilicon-carbidehot
surfaceignitioncontrolsystemwith100%shut-offignitiondevice.
Powersuppliedtoeachheatershallbe120V,60Hz,singlephase.
Burnersshallberatedfor1.0Amp(run)and5.0Amp(start.)
4.Burnershallbeequippedwiththermaloverloadmotor
protection,balancedairrotor,combustionairprovingsafety
pressureswitch,andviewingwindowforflameobservation.
5.Whenspecified,incontaminatedenvironments,theburnershall
becapableofsupplyingoutsideairtoeachburnerforthesup-
portofcombustion.
6.Allburnersshallbepre-wiredwithagroundedelectrical
cordandplug.
7.Atcustomer’schoice,burnersmaybecontrolledwitheither
anoptionallinevoltagethermostatorbyoptionallowvoltage
thermostatswithanappropriatelowvoltagetransformerrelay.
8.Gassupplytotheburnersshallconformtothefollowing:
1/2”NPTgasconnectorsize
NaturalGas: 4.6”W.C.MIN,7.0”W.C.MAX
LPGas: 11”W.C.MIN,14.0:W.C.MAX
B. Heat Exchanger
1.Radianttubingshallbe4”diameteraluminizedsteelsuppliedin
10ft.sections.Sectionsshallbejoinedwithstainlesssteelwrap-
aroundcouplings.
2.Reflectortobeofaluminummaterialanddesignedtodirectall
radiantoutputbelowhorizontalcenterlineofradianttube.
3.Heatersshallbeventedaccordingtomanufacturer’s
recommendations.
Gas pressure at MANIFOLD:
Natural Gas: 3.5” W.C.
LP Gas: 10.5” W.C.
1/2”NPTGasConnectorSize
Gas INLET pressure:
Natural Gas: 4.6” W.C. Min
11.0” W.C. Max
LP Gas: 11.0” W.C. Min
14.0” W.C. Max
1/2”NPTGasConnectorSize
Electrical Rating:(AllModels)
120V-60Hz
1.0AMP(Run)5.0AMP(Start)
Dimensions:
Flue Connection Size…………………4”
Outside Air Connection Size………4”
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