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INTERIOR CONNECTIONS (continued)
When circulation is reduced because of an electrical
power failure the installation of a hot-water
circulation loop that will dissipate at least 10% of the
estimated rated heat output of the solid-fuel boiler is
recommended with the following guidelines:
• The loop can only be made inoperative by a
deliberate manual action.
• The design parameters for sizing shall be a pipe
size > 3/4 inch (18 mm), room temperature of 65°
F (18° C), and mean water temperature of 180° F
(82° C).
• The loop be positioned above the boiler, with
features that promote natural thermal circulation of
the water.
The piping used in the system should not cause any
restrictions that could create excessive pressure in the
system. Eg. Reducing from 1" pipe to ½" pipe
Flat Plate Exchanger For Pressurized
Systems
Flat plate exchanger systems that are used with
pressurized systems such as in floor heating or hot
water baseboard systems help to heat the water
going in to the pressurized system while keeping the
two systems separate. Because an outdoor furnace
is an open system (not pressurized) and the system
tied in to in this type of application is pressurized it
allows both systems to stay the same while being
operational.
The water supplied by the outdoor furnace will heat
the water in the pressurized system while the present
heat source in the pressurized system (such as a
boiler) can be used as a back up heat source in case
of emergency or need for additional heat.
Domestic Hot Water
OPERATION AND MAINTENANCE MANUAL
Flat plate exchanger systems used to pre-heat
domestic water tanks are generally easier to install,
more efficient and more reactive to hot water
demands then tube and shell (sidearm) systems. They
C-150, C-250, C-375, C-500, C-800
are mounted on the supply line and pre-heat the
water going in to the hot water tank.
Model:
By SteelTech Inc.
Version 2
Forced Air Furnace (Water-To-Air Exchanger)
The water-to-air heat exchanger must be mounted so
that air blows through the fins (coils). The exchanger
should be mounted below the A/C coil if possible.
The exchanger should be sized to fit existing duct
work and should produce about as many BTU's as
the existing heat source. An exchanger that produces
too many BTU's will result in uneven heat and the fan
stopping too quickly while a heat exchanger that is
undersized will not produced the necessary BTU's.
On systems with Air Conditioning it is very important
to not restrict airflow as it will cause the freon coil to
freeze up. Using standard outdoor furnace 3 row coils,
a minimum of 80 sq. in. of coil should be used per
ton of cooling. Exchangers can be mounted in cold
air returns but greater care must be taken as heat
from the exchanger can interfere with the air handler
controls and/or sensors.
It is important that the warm-air supply-duct system be
constructed of metal in accordance with NFPA 90B-
1993, 2-1.1 if the outlet-air temperature of a central
furnace exceeds 250° F (121° C) when it is tested in
accordance with the requirements for Simultaneous
Firing in 56.4.1 and 56.4.2 of the standard. It is also
important that the plenums installed to the furnaces be
constructed of metal in accordance with NFPA 90B-
1993, 2-1.3.
Forced air furnace with water-to-air exchanger
Serial No.:
UL 2523-2009
UL 391 (1995)
CAN/CSA B366.1-M91
heatmasterss.com
11

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Summary of Contents for Heatmaster C Series

  • Page 1 Forced Air Furnace (Water-To-Air Exchanger) INTERIOR CONNECTIONS (continued) When circulation is reduced because of an electrical The water-to-air heat exchanger must be mounted so power failure the installation of a hot-water that air blows through the fins (coils). The exchanger circulation loop that will dissipate at least 10% of the should be mounted below the A/C coil if possible.
  • Page 2 At least one pump must be circulating at all times or • Do not relocate or bypass any of the safety controls the water in the furnace may boil. A continuous pump in the original (gas, oil, electric) boiler installation. is also useful for freeze protection in temperatures •...
  • Page 3 Forced Air Furnace (Water-To-Air Exchanger) INTERIOR CONNECTIONS (continued) When circulation is reduced because of an electrical The water-to-air heat exchanger must be mounted so Contents power failure the installation of a hot-water that air blows through the fins (coils). The exchanger RETAIN THIS MANUAL FOR circulation loop that will dissipate at least 10% of the should be mounted below the A/C coil if possible.
  • Page 4: Limited Lifetime Warranty

    The installation should comply with requirements The best place to mount the main pump is on the due to burning improper fuels such as wood, oils or purchase of a new Heatmaster furnace, in the supply outlet. Placing the pump inside the building can...
  • Page 5: Water Treatment And Testing

    (not pressurized) and the system 1993, 2-1.3. active units of water treatment available to neutralize address is on hand at Heatmaster tied in to in this type of application is pressurized it harmful elements in your furnace water. Nitrates also...
  • Page 6: Safety Precautions

    • All installations and operations of your furnace. To maintain pressure in an existing boiler while using HEATMASTER SS product must follow STATE, • Hot Surfaces: Keep children away. Do not touch an outdoor furnace a water-to-water heat exchanger is PROVINCIAL, and LOCAL LAWS pertaining to during operation.
  • Page 7: Clearances To Combustibles

    On systems with Air Conditioning it is very important recommended that the chimney be longer than 15 ft. However, when burning a C Series furnace keep in (82° C). to not restrict airflow as it will cause the freon coil to...
  • Page 8 6” wide X 10” long Any installation of an add-on boiler shall: recommended and a water tight vapor barrier such Your Heatmaster dealer will carry high quality lines, insulation and PVC piping through is important.
  • Page 9: Hydronic Lines

    WIRING HYDRONIC LINES Forced Air Furnace (Water-To-Air Exchanger) INTERIOR CONNECTIONS (continued) When circulation is reduced because of an electrical The water-to-air heat exchanger must be mounted so All wiring must conform to local codes. Use an Hydronic lines (hot water heating lines) whenever power failure the installation of a hot-water that air blows through the fins (coils).
  • Page 10 an outdoor furnace a water-to-water heat exchanger is used. The water-to-water exchanger is installed in-line on the return side of the existing pressurized boiler system. At least one pump must be circulating at all times or • Do not relocate or bypass any of the safety controls •...
  • Page 11 Forced Air Furnace (Water-To-Air Exchanger) Forced Air Furnace (Water-To-Air Exchanger) INTERIOR CONNECTIONS (continued) INTERIOR CONNECTIONS (continued) When circulation is reduced because of an electrical When circulation is reduced because of an electrical The water-to-air heat exchanger must be mounted so The water-to-air heat exchanger must be mounted so power failure the installation of a hot-water power failure the installation of a hot-water...
  • Page 12: Operating The Furnace

    It can also potentially cause The C Series furnace is a 409 stainless steel outdoor of the add-on appliance by a gas fitter who is It is important to calculate the BTU’s needed, line size, a fire hazard.
  • Page 13 Coal Forced Air Furnace (Water-To-Air Exchanger) Loading INTERIOR CONNECTIONS (continued) 1. Once a hot coal bed is established, load a deep When circulation is reduced because of an electrical When initially firing add a small amount of paper and The water-to-air heat exchanger must be mounted so pile of coal towards the back of the firebox no power failure the installation of a hot-water wood kindling to start the fire and create a coal bed.
  • Page 14 Always empty the ashes after shaking them down. If If clinkers are too large to dump through the grates in At least one pump must be circulating at all times or • Do not relocate or bypass any of the safety controls any hot coals are shaken down they can ignite when to the ash pan allow some to accumulate, let the fire the water in the furnace may boil.
  • Page 15: Care And Maintenance

    When circulation is reduced because of an electrical The water-to-air heat exchanger must be mounted so Furnace Control - Your Heatmaster upside down. If wet creosote accumulates in the top C Series furnace...
  • Page 16: Troubleshooting

    At least one pump must be circulating at all times or • Cleaning of the heat exchanger, flue pipe, chimney • Do not relocate or bypass any of the safety controls heating season to determine if a creosote buildup has and draft inducer if used, is especially important occurred.
  • Page 17 Forced Air Furnace (Water-To-Air Exchanger) INTERIOR CONNECTIONS (continued) 4. Check that the temperature settings are correct. If there is smoke leaking out of the door. Small The furnace should be set on Heating Mode (H1) amounts of smoke leakage is normal due to the fan When circulation is reduced because of an electrical The water-to-air heat exchanger must be mounted so and the high temperature setting should be set no...
  • Page 18 C-150, C-250, C-375 At least one pump must be circulating at all times or • Do not relocate or bypass any of the safety controls Electrical Schematic Ranco Control the water in the furnace may boil. A continuous pump in the original (gas, oil, electric) boiler installation. is also useful for freeze protection in temperatures •...
  • Page 19 C-500, C-800 Forced Air Furnace (Water-To-Air Exchanger) INTERIOR CONNECTIONS (continued) Electrical Schematic Ranco Control When circulation is reduced because of an electrical The water-to-air heat exchanger must be mounted so power failure the installation of a hot-water that air blows through the fins (coils). The exchanger circulation loop that will dissipate at least 10% of the should be mounted below the A/C coil if possible.
  • Page 20: Electronic Temperature Control Settings & Specifications

    At least one pump must be circulating at all times or • Do not relocate or bypass any of the safety controls Electronic Temperature Control Settings & Specifications the water in the furnace may boil. A continuous pump in the original (gas, oil, electric) boiler installation. is also useful for freeze protection in temperatures •...
  • Page 21: Electronic Timer Control And Settings

    Forced Air Furnace (Water-To-Air Exchanger) INTERIOR CONNECTIONS (continued) Electronic Timer Control and Settings When circulation is reduced because of an electrical The water-to-air heat exchanger must be mounted so power failure the installation of a hot-water that air blows through the fins (coils). The exchanger Description The OFF Timer can be set to run in hours, minutes or circulation loop that will dissipate at least 10% of the...
  • Page 22: Unit Footprints

    work space (optional) 48” concrete work space (optional) 15” 28 1/2” 46 15/16” 15” 28 1/2” 46 15/16” 48” concrete Unit Footprints At least one pump must be circulating at all times or • Do not relocate or bypass any of the safety controls work space (optional) 48”...
  • Page 23: Replacement Components List

    (coils). The exchanger part of your warranty with Heatmaster these components are covered under warranty for the 1 year. These circulation loop that will dissipate at least 10% of the should be mounted below the A/C coil if possible.
  • Page 24 For more information on our parts or to arrange product installation please contact your lead to cavitation and air-lock problems. should comply with CSA B139 (for oil-fired), C22.1 (for local HeatMaster dealer. electric), or CAN/CGA-B149.1 or CAN/CGA-B149.2 (for Building Connections gas-fired).

This manual is also suitable for:

C-375C-250C-150C-800C-500

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