Trane Gas Unit Heaters Wartungshandbuch
Installation: Mechanical
GAND-SVX01B-EN
13
Note: Unit heater sizing should be based on heat loss
calculations where the unit heater output equals or
exceeds heat loss. Heater output is approximately
80 percent of input Btu/hr rating.
exceeds heat loss. Heater output is approximately
80 percent of input Btu/hr rating.
Clearances
Each gas unit heater shall be located with respect to
building construction and other equipment so as to permit
access to the Unit Heater. Clearance between walls and the
vertical sides of the Unit Heater shall be no less than
18 inches (457 mm). A minimum clearance of 6 inches
(152 mm) must be maintained between the top of the Unit
Heater and the ceiling. The bottom of the Unit Heater must
be no less than 12 inches (305 mm) from any combustible.
However, in order to ensure access to the burner
compartment, a minimum distance of 25 inches (635 mm)
is required. The distance between the flue collector and
any combustible must be no less than 6 inches (152 mm).
Also see
building construction and other equipment so as to permit
access to the Unit Heater. Clearance between walls and the
vertical sides of the Unit Heater shall be no less than
18 inches (457 mm). A minimum clearance of 6 inches
(152 mm) must be maintained between the top of the Unit
Heater and the ceiling. The bottom of the Unit Heater must
be no less than 12 inches (305 mm) from any combustible.
However, in order to ensure access to the burner
compartment, a minimum distance of 25 inches (635 mm)
is required. The distance between the flue collector and
any combustible must be no less than 6 inches (152 mm).
Also see
and
.
Note: Increasing the clearance distances may be
necessary if there is a possibility of distortion or
discoloration of adjacent materials.
discoloration of adjacent materials.
Figure 7.
Heat throw distances
NOTICE:
Maintain Minimum Thermostat Setting!
Unit heaters should not be installed to maintain low
temperatures and/or freeze protection of buildings. A
minimum of 50°F (10°C) thermostat setting must be
maintained. If unit heaters are operated to maintain
lower than 50°F (10°C), hot flue gases are cooled inside
the heat exchanger to a point where water vapor (a flue
gas by-product) condenses onto the heat exchanger
walls. The result is a mildly corrosive acid that
prematurely corrodes the aluminized heat exchanger
and can actually drip water down from the unit heater
onto the floor surface. Additional unit heaters should
be installed if a minimum 50°F (10°C) thermostat
setting cannot be maintained. Failure to follow these
recommendations could result in equipment or
property damage.
temperatures and/or freeze protection of buildings. A
minimum of 50°F (10°C) thermostat setting must be
maintained. If unit heaters are operated to maintain
lower than 50°F (10°C), hot flue gases are cooled inside
the heat exchanger to a point where water vapor (a flue
gas by-product) condenses onto the heat exchanger
walls. The result is a mildly corrosive acid that
prematurely corrodes the aluminized heat exchanger
and can actually drip water down from the unit heater
onto the floor surface. Additional unit heaters should
be installed if a minimum 50°F (10°C) thermostat
setting cannot be maintained. Failure to follow these
recommendations could result in equipment or
property damage.
WARNING
Overheating or Flooding Could Cause Fire
or Explosion!
or Explosion!
Overheating or flooding (where any part of the unit
heater has been under water) could result in fire or
explosion. Should overheating occur, or the gas supply
fails to shut off, shut off the manual gas valve to the
unit heater before shutting off the electrical supply. Do
not use the unit heater if any part has been under
water. Immediately call a qualified service technician to
inspect the unit heater and replace any gas control
which has been underwater. Failure to follow these
recommendations could result in death or serious
injury.
heater has been under water) could result in fire or
explosion. Should overheating occur, or the gas supply
fails to shut off, shut off the manual gas valve to the
unit heater before shutting off the electrical supply. Do
not use the unit heater if any part has been under
water. Immediately call a qualified service technician to
inspect the unit heater and replace any gas control
which has been underwater. Failure to follow these
recommendations could result in death or serious
injury.
WARNING
Hazardous Gases and Flammable Vapors!
Exposure to hazardous gases from fuel substances
have been shown to cause cancer, birth defects or other
reproductive harm. Improper installation, adjustment,
alteration, service or use of this product could cause
flammable mixtures. To avoid hazardous gases and
flammable vapors follow proper installation and set up
of this product and all warnings as provided in this
manual. Failure to follow all instructions could result in
death or serious injury.
have been shown to cause cancer, birth defects or other
reproductive harm. Improper installation, adjustment,
alteration, service or use of this product could cause
flammable mixtures. To avoid hazardous gases and
flammable vapors follow proper installation and set up
of this product and all warnings as provided in this
manual. Failure to follow all instructions could result in
death or serious injury.
“H”
Unit
Heater
Floor Line
WARNING
Heavy Objects!
Make certain that the lifting methods used to lift the
heater and the method of suspension used in the field
installation of the heater are capable of uniformly
supporting the weight of the heater at all times. Make
certain that the structure to which the heater is
mounted is capable of supporting its weight. Under no
circumstances must the gas lines, the venting system
or the electrical conduit be used to support the heater;
or should any other objects (i.e. ladder, person) lean
against the heater, gas lines, venting system or the
electrical conduit for support. Failure to follow
recommendations could result in death or serious
injury.
heater and the method of suspension used in the field
installation of the heater are capable of uniformly
supporting the weight of the heater at all times. Make
certain that the structure to which the heater is
mounted is capable of supporting its weight. Under no
circumstances must the gas lines, the venting system
or the electrical conduit be used to support the heater;
or should any other objects (i.e. ladder, person) lean
against the heater, gas lines, venting system or the
electrical conduit for support. Failure to follow
recommendations could result in death or serious
injury.
NOTICE:
Equipment Damage!
Unit heaters must be hung level from side to side and
from front to back, see
from front to back, see
through
. Failure to do so could result in poor performance
and/or premature failure of the unit.