its function in the system (relative to air velocity and static
pressure requirements).
– Before initial operation, all moving parts
of dampers should be rst cleaned and then thoroughly
lubricated. Dampers furnished with stainless steel side seals
should also have the seals lubricated generously. Dampers
should then be manually operated several times until linkages
and blades operate freely.
The AcuAir unit is supplied with all lter racks in place. The
lters and lter clips are shipped separately, direct from
the lter supplier. Once the unit is completely installed and
thoroughly cleaned, the prelters and nal lters should be
installed in their respective holding frames. Once the nal
lters have been installed, the nal lter section and the supply
air ductwork should be cleaned and sanitized.
On units equipped with nal lters, a nal lter pressure gauge
is shipped mounted. The high-pressure tube is connected to
the gauge at the factory. The secondary port on the gauge
needs to be eld routed to the ductwork downstream of the
nal lters using the tubing supplied.
All refrigeration coils must be evacuated to remove moisture
prior to charging. Do not leave system or coils open and idle
prior to start-up. Internal corrosive damage can result.
Make sure piping is properly supported. Evaporators are not
designed to support external piping. Evaporator piping and
distributor tubing is not to be used for support or stepped on
during the construction process.
The use of threading compounds at coil anges with particles
of metals (i.e. copper) embedded in the compounds can
cause corrosion due to contact of dissimilar metals. Verify
the compatibility of your construction materials with the coil
material of construction.
Refrigerant sensing devices should be employed in the
hygienic air system. These sensors should be selected and
located based on the refrigerant within the system. When
the refrigerant is ammonia, the sensors work well when
placed inside the AcuAir unit immediately downstream of
the cooling coil.
Examine your environment. If structure, equipment, or other
elements of your facility show rust or corrosive effects, the
evaporator coils are not likely to be impervious to the same
effects of the environment. Consider this when formulating
your maintenance program.
1. Close the manual gas shutoff valve external to the burner.
2. Turn off the electrical power to the furnace.
3. Set the temperature to the lowest possible setting.
4. Set the burner controls to the OFF position.
5. Wait ve minutes to clear out any gas. Then smell for gas,
including near the oor.
6. Set the burner controls to the ON position.
7. Close the door on the front of the gas manifold.
8. Open the manual gas valve external to the furnace.
9. Turn on the electrical power supply to the furnace.
10. Set the controls to the desired temperature.
1. Set the controls to lowest setting.
2. Turn off the electrical power supply to the furnace.
3. Set the burner controls to the OFF position.
4. Close the manual gas shutoff valve external to the furnace.
To Next Page
Loading...
