Location, 4 installation codes 1.3 warranty, 2 general information – Reznor OH Unit Installation Manual User Manual
Page 3: 1 arrangement

Form I-OH, PN 120390 R5, Page 3
1.4 Installation
Codes
1.3 Warranty
Refer to the limited warranty information in the "Literature Bag"
WARRANTY: Warranty is void if......
a. Wiring is not in accordance with diagram furnished with the heater.
b. Heater is operated in presence of chlorinated vapors.
c. Ducts are attached to fan models.
This heater is for commercial or industrial use only. In the United States, the installation
must be in accordance with the Standard for the Installation of Oil Burning Equipment
NFPA 31, the National Electrical Code NFPA 70, and the requirements of the inspec-
tion authorities having jurisdiction. Model OH units for installation in the United States
have a UL logo on the rating plate.
In Canada, the installation must be in accordance with CSA Standard B139, Installa-
tion Code for Oil Burning Equipment; CSA Standard C22.1, Canadian Electric Code,
Part 1; and with requirements of local regulatory authorities. Model OH units for instal-
lation in Canada have a CSA logo on the rating plate.
This heater should be installed by a trained installer who is thoroughly familiar with the
installation of oil-fired appliances.
Prior to beginning installation, become familiar with the heater and its particular instal-
lation requirements.
1.2 General
Information
Fuel Specifications
The burner in this oil-fired heater is designed and orificed for use with #2 fuel oil (140,000
BTU/gallon) at 100 psig. However, the following substitute fuels may be used:
#1 fuel oil - 132,000 BTU/gallon
Kerosene (domestic only; do not use foreign) - 132,000 BTU/gallon
#1 diesel fuel - 132,000 BTU/gallon (see NOTE)
#2 diesel fuel - 140,000 BTU/gallon (see NOTE)
NOTE: Diesel fuel is not approved for use in Canada.
WARNING: Do not use gasoline, crankcase oil, or any oil
containing gasoline. Do not use aviation fuel.
Due to higher viscosity, some #1 oils's BTU/gallon capacity may be 128,000 to 130,000
BTU/gallon. Check BTU content of substitute fuel to determine burner input.
• Size 95 burns an average of .85 gallons per hour.
• Size 140 burns an average of 1.25 gallons per hour.
• Size 190 burns an average of 1.65 gallons per hour.
CAUTION: Do not attempt to burn paper or garbage in this
heater.
2. Location
2.1 Arrangement
These oil-fired unit heaters should be installed in such a manner as to derive maximum
efficiency and a minimum of heat loss to the outside environment. As a rule, single
heaters should be suspended over an area of low heat loss with output air directed
toward the area of the greatest heat loss. Where two or more heaters are used in a
common installation, heaters should be arranged around the outside walls and blow-
ing parallel to them. Heaters may be arranged in a supporting consecutive air pattern
so that the output of one blows beneath the air-intake side of another. In installations
where there are concentrated heat loss areas, a combination of single and multiple
arrangements is desirable. See illustrations in
FIGURE 1.