
Indirect Fired Construction Heater Operating Instructions and Owner’s Manual
5
ELECTRICAL CONNECTIONS
WARNING Every heater is equipped with all the required
safety and control devices already factory installed. Do not
remove or disable them. Doing so could result in property
damage, injury or even death.
Every heater is supplied with the safety and control devices which
are indispensable to the correct functioning of the unit being
already electrically connected.
WARNING When installed, the appliance must be
electrically grounded in accordance with local codes, or in
the absence of local codes, with the National Electrical Code,
ANSI/NFPA70,and/ortheCSAC22.1,CanadianElectrical
Code, if an external electrical source is utilized.
INSTALLATION
WARNING
• All the operations described in this paragraph must be
performed by professional and skilled personnel
When equipped for Natural Gas, the installation shall conform
with local codes or, in the absence of local codes, with the
NationalFuelGasCodeANSIZ223.1/NFPA54andtheNatural
GasandPropaneInstallationCode,CSAB149.1.”
When equipped for propane:
• The installation must conform with local codes or, in the
absence of local codes, with the Standard for the Storage
andHandlingofLiquefiedPetroleumGases,ANSI/NFPA58
and the Natural Gas and Propane Installation Code, CSA
B149.1.
• Heater shall not be directed toward any propane/gas con-
tainerwithin6m(20feet)
• Size and capacity of gas cylinders shall be properly
dimensioned according to the gas flow in Tab.1.
• The cylinder supply system shall be arranged to provide for
vapor withdrawal from the operating cylinder
• After having connected to gas cylinder, open the supply tap
and check the supply pipe and fittings for gas leaks. Only
use foam soap or an approved leak detector.
• The gas shall be turned off at the propane supply cylinder(s)
when the heater is not in use.
• When the heater is to be stored indoors, the connection
between the propane supply cylinder(s) and the heater must
be disconnected and the cylinders) removed from the heater
and stored in accordance with Standard for the Storage and
HandlingofLiquefiedPetroleumGases,ANSI/NFPA58and
CSAB149.1,NaturalGasandPropaneInstallationCode.
WARNING Never use free flames to detect gas leaks.
The following operations must now be carried out:
•Pluginthepowercordhavingreadtheratingplatethatspecify
electric supply characteristics.
•Connectaccessoriessuchastheroomthermostatorclocktothe
unit’scontrolpanelwiththethermostatreceptacle.
Having completed all these operations check carefully that all
electrical connections correspond to the wiring diagram. When
the heater is first turned on you must check that the fan does not
use more current than the maximum permitted limit.
GAS LINE CONNECTIONS
The connection to the gas feed pipe, whose sizes must
correspond to the kind of system to be made, must be carried out
byplacingthe“gasramp”asindicatedinFig.3:thegaspipe,the
interception tap and the anti-vibration joint are not supplied with
the heater and they must be arranged by the person in charge of
installation.
1Maingaspipe 3Antivibratingcoupling
2Manualshut-offvalve 4Gasvalvesgroup
Fig. 3
In case of connection of heater to natural gas, the installation
shall conform with local codes or, in the absence of local codes,
withtheNationalFuelGasCodeANSIZ223.1/NFPA54andthe
NaturalGasandPropaneInstallationCode,CSAB149.1.
In case of connection to a propane supply cylinder:
(a) The installation must conform with local codes or, in the
absence of local codes, with the Standard for the Storage and
HandlingofLiquefiedPetroleumGases,ANSI/NFPA58andthe
NaturalGasandPropaneInstallationCode,CSAB149.1.
(b) To determine size and capacity of the cylinder(s) and for any
specific requirements consult your LP gas supplier. In any case
propanetankshouldnotbelowerthan100lb(90liters)
(c) The cylinder supply system shall be arranged to provide for
vapor withdrawal from the operating cylinder;
(d) The gas shall be turned off at the propane supply cylinder
when the heater is not in use;
(e) When the heater is to be stored indoors, the connection
between the propane supply cylinder and the heater must
be disconnected and the cylinders removed from the heater
and stored in accordance with Standard for the Storage and
HandlingofLiquifiedPetroleumGases,ANSI/NFPA58and
CSAB149.1,NaturalGasandPropaneInstallationCode.