Hatco pmg-60m-0705(7) User Manual
Form No. PMG-60M-0705
7
INSTALLATION
WARNING/CAUTION
The flow of air to the heater for combustion
and ventilation must not be obstructed. Air
vents on the bottom and side of the unit
and ventilation must not be obstructed. Air
vents on the bottom and side of the unit
should never be blocked.
WARNING/CAUTION
This unit is designed to vent directly into the
room and is intended for commercial food
service water heating only. IT IS NOT FOR
room and is intended for commercial food
service water heating only. IT IS NOT FOR
RESIDENTIAL USE.
WARNING/CAUTION
Flue gases exit top sides of this unit and must
not be obstructed, specified clearances must
be maintained for safe operation.
not be obstructed, specified clearances must
be maintained for safe operation.
While the gas booster heater is designed and
approved to vent directly into the room, an
alternative venting method is available through our
accessory diverter hood. See the ACCESSORIES
section of this manual.
approved to vent directly into the room, an
alternative venting method is available through our
accessory diverter hood. See the ACCESSORIES
section of this manual.
High Altitude Installation and Operation
Atmospheric conditions at elevations above
2000 ft. (610 m) have an effect on the performance
of most gas fired products. For this reason, historical
models for altitude de-rating were developed for gas
appliances with atmospheric burners. The National
Fuel Gas Code, ANSI Z223.1 is an accepted model
which requires a de-rating of 4% per 1000 ft.
(305 m) elevation when no testing to the contrary
exists for that product. This could require modifying
the equipment and adjusting settings in the field to
achieve de-rating. Testing has shown this to be a
very conservative approach.
Atmospheric conditions at elevations above
2000 ft. (610 m) have an effect on the performance
of most gas fired products. For this reason, historical
models for altitude de-rating were developed for gas
appliances with atmospheric burners. The National
Fuel Gas Code, ANSI Z223.1 is an accepted model
which requires a de-rating of 4% per 1000 ft.
(305 m) elevation when no testing to the contrary
exists for that product. This could require modifying
the equipment and adjusting settings in the field to
achieve de-rating. Testing has shown this to be a
very conservative approach.
Manufacturers discourage unnecessary field
adjustments in order to maintain a level of
performance and quality designed into the product.
For these and other reasons, testing was
underwritten through CSA International to verify an
improved satisfactory performance with little or no
modification to effect input rate or control. The
following text and charts are a result of this testing
and should be used during application sizing
and installation.
adjustments in order to maintain a level of
performance and quality designed into the product.
For these and other reasons, testing was
underwritten through CSA International to verify an
improved satisfactory performance with little or no
modification to effect input rate or control. The
following text and charts are a result of this testing
and should be used during application sizing
and installation.
• The PMG-60 can operate with less de-rating
than ANSI Z223.1 with sea level manifold
pressure settings and orifices. A natural gas unit
will require an orifice change over 5000 ft.
(1525 m). No change is needed for a liquid
propane gas unit. This is true up to 8500 ft.
(2593 m) elevation where a slight decrease in
manifold pressure may be needed to meet the
approved BTU rate. Also note that the GPH
capacity will be reduced and a guideline is given
as to the percent of sea level capacity expected.
pressure settings and orifices. A natural gas unit
will require an orifice change over 5000 ft.
(1525 m). No change is needed for a liquid
propane gas unit. This is true up to 8500 ft.
(2593 m) elevation where a slight decrease in
manifold pressure may be needed to meet the
approved BTU rate. Also note that the GPH
capacity will be reduced and a guideline is given
as to the percent of sea level capacity expected.
Orifice Kits for altitude installations may be ordered
through Hatco Customer Service. For PMG-60
order P/N ORIF60.
through Hatco Customer Service. For PMG-60
order P/N ORIF60.
For Canadian installations between 2000-4500 feet
(610-1370 m) de-rate unit by 10% to 52,000.
(610-1370 m) de-rate unit by 10% to 52,000.
{Pour les installations au Canada entre 610 et
1370 m (2000 et 4500 pi) reclassifier l’appareil de
10% à 52,000 BTU.}
1370 m (2000 et 4500 pi) reclassifier l’appareil de
10% à 52,000 BTU.}
Minimum Clearance Requirements: {Exigences quant au dégagement minimum:}
Floor
Top
Left Side
Right Side
Front
Back
{Sol}
{Dessus}
{Côté gauche}
{Côté droit}
{Devant}
{Derrierè}
6"* (152 mm)
5" (127 mm)
6" (152 mm)
6" (152 mm)
20" (508 mm)
2" (51 mm)
*Includes legs supplied with booster heater {Comrend pieds fournis avec appareil de chauffage auxiliare}.