Indirect Fired Construction Heater
Operating Instructions and Owner’s Manual
3
IMPORTANT
Before using the heater, read and understand all instructions and
follow them carefully. The manufacturer is not responsible for
damages to goods or persons due to improper use of units.
GENERAL RECOMMENDATIONS
This indirect-fired heater runs on natural gas or L.P.G. and is fitted
with a flue to take the fumes away through the chimney.
Prior to shipping, the heater is configured for either natural gas
or LP, labeled on the gas selector valve for the correct fuel type
and given a complete functional test. To change the type of gas,
follow the detailed instructions indicated in section “CHANGING
TYPE OF GAS”.
Always follow local ordinances and codes when using this
heater:
•Read and follow this owner’s manual before using the heater.
•Use only in places free of flammable vapors or dust content.
• Never use heater in immediate proximity of flammable
materials (the minimum distance must be 6 ft.).
•Make sure fire fighting equipment is readily available.
• Make sure sufficient fresh outside air is provided according to
the heater requirements. Direct combustion heaters should
only be used in well vented areas in order to avoid carbon
monoxide poisoning.
• The heater is installed near a chimney to take away the fumes
(see “Ventilation” on page 5) and connected to an electrical
switchboard.
• When the heater is connected to a flue pipe, the flue pipe
shall terminate in a vertical section at least 3 feet long and
sufficient draft shall be created to assure safe and proper
operation of the heater.
• Never block air inlet (rear) or air outlet (front).
• In case of very low temperatures add kerosene to the heating
oil.
• Make sure heater is always under surveillance and keep
children and animals away from it;
• Before starting the heater always check free rotation of
ventilator fan.
• Indirect fired units only can be connected to air ducts to
distribute warm air, with respect to the max. static pressure
declared (see “TECHNICAL SPECIFICATION” sheet).
•Unplug heater when not in use.
TECHNICAL SPECIFICATIONS
HS 4000IDG
Heat input
[kBTU/h]
380
Air flow
[cfm]
3,250
Heat output
[kBTU/h]
328.7
Natural Gas
Supply pressure
[in WC]
min 7’ w.c.
max 10” w.c.
Burner pressure
[in WC]
6.40
Fuel consumption
[CFH]
355.97
Position of gas
selector value
LPG
Supply pressure
[in WC]
min 8’ w.c.
max 13’ w.c.
Burner pressure
[in WC]
7
Fuel consumption
[CFH]
133.89
Position of gas
selector value
Power
supply
Phase
1
Voltage
[V]
120
[Hz]
Frequency
60
Electric consumption
[W]
1400
[A]
13.0
Adjustment of combustion air
fl
ap
[N]
3.0
Ring Nozzle
[in]
N. 12 holes x
0.106”
Gas inlet connection thread
[psi]
3/4” HPT
Flue
[in]
5.91
Static pressure
[in]
0.60
Compulsory
fl
ue draft
[in]
0.05
Maximum air temperature
[°F]
250
Base unit
Dimensions, L x W x H
[in]
72.3 x 31.6 x
30.4
Weight
[lb]
306
Packaging
Dimensions, L x W x H
[in]
74.1 x 26.0 x
35.83
Weight
[lb]
361
TABLE 1
