Important Notices - Ruffneck AH-12A-A Série Guide D'utilisation

Read and adhere to the following. Failure to do so may result in severe or fatal injury.
1. Read and follow the instructions in this manual.
Read and adhere to the following. Failure to do so may result in severe or fatal injury.
2. Heater to be used only in the hazardous locations indicated on the heater's
data plate.
1. Read and follow the instructions in this manual.
3. Heater is for dry indoor use only. Do not immerse in water. Do not store or
use in areas exposed to rain or snow.
2. Heaters are to be installed and serviced only
4. Heater is to be connected and serviced only by a qualified electrician
by qualified personnel experienced in electrical and
experienced with hazardous location equipment.
piping work.
5. Installation, piping, and wiring of he heater must adhere to all applicable
codes.
3. Installation, piping, and wiring of he heater must
6. It is essential that any unit heater that will be used in a hazardous (classified)
adhere to all applicable codes.
location is equipped with a electric motor approved for such service, and the
temperature of the heat transfer medium is below the ignition temperature
4. It is essential that any unit heater that will be used
of the atmosphere. Refer to applicable electrical codes for additional
information.
in a hazardous (classified) location is equipped with
a electric motor approved for such service, and the
7. Disconnect heater from power supply at integral disconnect or fuse box
before opening enclosures or servicing heater. Lock the switch in the
temperature of the heat transfer medium is below
"OFF" (open) position and/or tag the switch to prevent unexpected power
the ignition temperature of the atmosphere.
application. IF INTEGRAL DISCONNECT IS BEING SERVICED, verify that
power has been disconnected at fuse box or main panel. Lock the switch in
the "OFF" (open) position and/or tag the switch to prevent unexpected power
5. Do not operate heater in atmospheres which are
application.
corrosive to steel or aluminum, unless it has been
coated with a factory approved protective coating.
8. Do not operate heater in atmospheres which are corrosive to steel or
aluminum, unless it has been coated with a factory approved protective
coating.
The installation instructions provide a general guideline for the installation and wiring of the heater.
The installation instructions provide a general guideline for the installation and wiring of the heater.
LOCATION
LOCATION
1. For optimum heating, the heaters should be installed as
follows:
1. For optimum heating, the heaters should be installed as
a. There are no obstructions that may impede the heater's
follows: air inlet or discharge.
b. The air discharge is directed into open areas and not at
a. There are no obstructions that may impede the
occupants.
heater's air inlet or discharge.
c. The air discharge is not directed at a thermostat.
b. The air discharge is directed into open areas and not
d. The air discharge is directed across areas of heat loss,
at occupants.
such as doors and windows (see Figure 1).
c. The air discharge is not directed at a thermostat.
e. The air discharge is directed along, and at a slight angle
towards, exterior walls (see Figure 1).
d. The air discharge is directed across areas of heat
f. If equipment freeze protection is important, direct air
loss, such as doors and windows (see Figure 1).
discharge at equipment.
e. The air discharge is directed along, and at a slight
g. Air discharge streams support each other and create a
angle towards, exterior walls (see Figure 1).
circular air flow. It is not required that the heater's air
f. If equipment freeze protection is important, direct air throw reaches the next heater.
h. For warehouses or large workshops it may be
discharge at equipment.
acceptable to use fewer, larger heaters.
g. Air discharge streams support each other and create
a circular air flow. It is not required that the heater's
air throw reaches the next heater.
h. For warehouses or large workshops it may be
acceptable to use fewer, larger heaters.

IMPORTANT NOTICES

IMPORTANT NOTICES
W A R R A N T Y W I L L B E V O I D
I F I N S T R U C T I O N S A R E N O T F O L L O W E D
WA RR ANT Y W ILL B E V OI D
I F I NS T R UC T I O NS AR E N OT FO LLO WE D
INSTALLATION
INSTALLATION
All applicable codes must be adhered to.
All applicable codes must be adhered to.
MECHANICAL
MECHANICAL
WARNING!
WARNING: 9. For steam service use only single-pass models. Refer to model coding (page
7) for number of passes in heat exchanger.
10. Refer to heat exchanger data plate for pressure and temperature limits.
6. For steam service use only single-pass models.
11. Heater must be kept clean. When operating in a dirty environment, regularly
Refer to model coding (page 7) for number of clean the finned tubes, fan and fan guard. Follow the recommended
maintenance procedures. Refer to the "Heater Maintenance Checklist"
passes in heat exchanger.
section for details.
12. Use factory approved replacement parts only.
7. Refer to heat exchanger data plate for pressure
and temperature limits.
13. If there are any questions or concerns regarding the heater, contact the
factory. Refer to the last page of this manual for details.
8. Heater must be kept clean. When operating in
14. HVAC fluids must be non-flammable, non-compressable, non-explosive &
a dirty environment, regularly clean the finned
non-toxic.
tubes, fan and fan guard. Follow the recommended
15. Do not operate the heater with any of the louvers fully closed or overriding
maintenance procedures. Refer to the "Heater
their stops.
Maintenance Checklist" section for details.
16. Do not operate heater in ambient temperatures above 104°F (40°C).
9. Use factory approved replacement parts only.
17. See applicable electrical codes for seal requirements in field installed
conduits. Factory installed conduits require no further sealing.
10. If there are any questions or concerns regarding
18. Base of the heater is to be mounted a minimum of 7.9 ft (2.4 m) above the
the heater, contact the factory. Refer to the last
floor. Refer to the "Installation" section for details.
page of this manual for details.
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FIGURE 1