Newmac CL86 Service manual

INSTALLATION, OPERATING
and
SERVICE MANUAL
NEWMAC COMBINATION FURNACE
CL 86-96C, CL 86-96G, CL 115-170C, CL 115-170G
The installation of the unit shall be in accordance with the
regulations of the authorities having jurisdiction.
HEAD OFFICE
MARKETING / PRODUCTION
Newmac Mfg. Inc.
DEBERT AIR INDUSTRIAL PARK,
208 LANCASTER CRESCENT
P.O. BOX 9, DEBERT
NOVA SCOTIA, BOM 1G0
PHONE: [phone]
FAX: [phone]
WAREHOUSE
Newmac Mfg. Inc.
430 SPRINGBANK AVE., SOUTH
P.O. BOX 545
WOODSTOCK, ONTARIO
N4S 7Y5
PHONE: [phone]
FAX: [phone]
EMAIL: [e-mail]
HOMEPAGE: newmacfurnaces.com
NOTICE TO HOMEOWNER:
READ THESE INSTRUCTIONS
SAVE THESE INSTRUCTIONS
2210040 Revised November 2008
Printed:__________Subject to change without notice

1
COMBINATION FURNACES
MODELS CL 86-96C, CL 86-96G, CL115-170C, CL 115-170G
It is the responsibility of the consignee of the unit to examine the packages for damages, and if found, to note the same on the
Carrier’ Bill of Lading.
PACKAGE # 1 – Heat exchanger with end panels and side panel installed, filters, draft regulator, accessory carton, brick rack, if
brick liner, in firebox. CL 115-170G have 5 grates, 9 liner pieces and 1 shaker handle in firebox. CL 86-96G have 3 grates, 6
split brick and shaker handle in firebox, CL 86-96C have 8 split brick in firebox.
PACKAGE # 2 – Blower section with blower installed, blower belt attached.
PACKAGE # 3 – Oil Burner box with oil burner, primary relay, cell and nozzle.
PACKAGE # 4 – Firebrick CL 86-96C – 20 full brick
CL 86-96G – 20 full brick
CL 115-170C – 30 full brick
Accessory Carton – Wire harness, fan limit control, solid fuel and oil burner thermostats, junction box with relay transformer
mounted, blower motor and pulley, draft fan package, Instruction Manual.
FIG. 1 - GENERAL INSTRUCTIONS
MODEL AERO BTUH
INPUT BTUH OUTPUT NOZZLE PUMP (p.s.i.) INSERTION
CL86 F-AFC-2-8 105,000 86,000 .75 (80 R) 100 7-7/8”
CL96 F-AFC-2-8 119,000 96,000 .85 (80 R) 100 7-7/8”
CL115 F-AFC-3-8 140,000 111,000-109,000 1.00 (80 R) 100 7-7/8”
CL140 F-AFC-3-8 175,000 140,000-138,000 1.25 (80 R) 100 7-7/8”
CL155 F-AFC-3-8 189,000 152,000-150,000 1.35 (80 R) 100 7-7/8”
CL170 F-AFC-3-8 210,000 169,000-168,000 1.50 (80 R) 100 7-7/8”
MODEL BECKETT BTUH
INPUT BTUH OUTPUT NOZZLE PUMP (p.s.i.) INSERTION
CL86 SR81RD (NM201) 105,000 86,000 .75 (80 R) 100 7-7/8”
CL96 SR81RD (NM201) 119,000 96,000 .85 (80 R) 100 7-7/8”
CL115 SR81RF (NM202) 140,000 111,000-109,000 1.00 (80 R) 100 7-7/8”
CL140 SR81RF (NM202) 175,000 140,000-138,000 1.25 (80 R) 100 7-7/8”
CL155 SR81RF (NM202) 189,000 152,000-150,000 1.35 (80 R) 100 7-7/8”
CL170 SR81RF (NM202) 210,000 169,000-168,000 1.50 (80 R) 100 7-7/8”
CL86 AFG (NM502) 105,000 86,000 .75 (70 A) 100 7-7/8”
CL96 AFG (NM502) 119,000 96,000 .85 (70 A) 100 7-7/8”
CL115 AFG (NM503) 140,000 111,000-109,000 1.00 (70 A) 100 7-7/8”
CL140 AFG (NM503) 175,000 140,000-138,000 1.25 (70 A) 100 7-7/8”
CL155 AFG (NM503) 189,000 152,000-150,000 1.35 (70 A) 100 7-7/8”
CL170 AFG (NM503) 210,000 169,000-168,000 1.50 (70 A) 100 7-7/8”
MODEL RIELLO BTUH
INPUT BTUH OUTPUT NOZZLE PUMP (p.s.i.) INSERTION
CL96 40 F3 (10” BT) 111,000 94,000 0.65 (60W) 150 7-1/2”
CL96 40 F3 (10” BT) 111,000 94,000 0.65 (AB) 150 7-1/2”
CL96 40 F3 (10” BT) 119,000 101,000 0.75 (60W) 130 7-1/2”
CL115 40 F5 (10” BT) 140,000 111,000-109,000 0.85 (60 W) 150 7-1/2”
CL140 40 F5 (10” BT) 175,000 140,000-138,000 1.00 (60 W) 150 7-1/2”
CL155 40 F5 (10” BT) 189,000 152,000-150,000 1.10 (60 W) 150 7-1/2”

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Minimum Clearance From Combustible Surfaces: See FIG. 6
Oil burner end 24" Flue Pipe 18”
Wood door end 48" Top of Supply Plenum 6”
One side 6" Supply Plenum and takeoff ducts to 6' from furnace 6”
Other side (walkway) 24" Duct beyond 6' from furnace 1/2"
In USA next 3’ 3", balance 1"
Return Air is “otherwise certified” to be installed as per CSA B139 Clearances
(Unlined Joist Space may be used for the Return Air as there is no radiation in the
Return Air section)
Effective August 2008 Refer to Canadian Building Code
COMBINATION FURNACE INSTALLATION
Check with provincial, state or local codes concerning clearances, chimney requirements and other installation procedures
before installation. Some codes may vary from the requirements set forth in this manual.
To ensure the furnace is on a level foundation and above any possible dampness, a cement pad is recommended. It is
important that the top be level. Install as close to the chimney as possible so that a minimum of pipes and elbows may be
used.
If unit is installed in an enclosed area (furnace room), ventilation must be provided for the burner – minimum of one square inch
for every 1,000 BTU.
1. The NEWMAC COMBINATION FURNACE may be installed with the supply or return air on either side. The units leave the
factory with the return or cold air on the right when viewed looking at the oil burner end. If it simplifies the duct installation
to have the supply air on the opposite side, remove the installed panel and install it on the other side.
2. After placing the heat exchanger on the proper side of the pad, assemble the blower section to the heat exchanger section
by lining up the prepunched holes and metal screwing together.
3. Install the oil nozzle in the burner firing assembly, and check to make sure adjustments are according to Fig. 15. Install the
oil burner by mounting it on the burner mounting plate. Check to make sure the oil burner tube is aligned with the hole in
the combustion chamber.
4. Install junction box, fan/limit control, draft fan and thermostat as in Fig. 7. Note recommended setting.
FIG. 2 - THERMOSTAT HEAT ANTICIPATORS
HONEYWELL T822 WHITE ROGERS IF30
In order to prevent short cycling, the heat anticipator in the thermostats must be set at .4 amps as indicated in the diagrams
below.
WARNING: The heat anticipator will BURN OUT IF 25 volts are applied directly to thermostat by shorting out primary control
during testing or incorrect wiring. If this happens the warranty on the thermostat is void.

3
FIG. 3 - FAN AND LIMIT CONTROLS
Settings: Fan off – 95 F, Fan on – 130 F. High limit – 210 F for CL-115-170C&G, 180 F for CL-86-96C&G
NOTE: For constant fan operation, push the MANUAL-AUTO switch on button to MAN position.
5. Connect wiring as in Fig. 12 (All models).
6. Install the oil storage tank or tanks according to the instructions supplied by the manufacturer of the pump.
7. Install brick in firebox according to Fig. 9A for CL-86-96 G, Fig. 8B for CL-86-96C, and Fig. 8A for CL-115-170C. For grate
installation in CL-86-96G refer to Fig. 9A and for grate and cast liner installation in CL-115-170G refer to Fig. 9B.
8. Do not use a manual flue pipe damper with this furnace.
9. Caution: If this furnace is used as a replacement for an existing furnace make sure there is a minimum of 6” clearance
above the warm air plenum as far as 6 feet out from the furnace. Beyond 6 feet there must be a minimum of 1/2”
clearance.
This furnace must be connected to a chimney approved for wood burning appliances , ie. ULC S629 (Canada) and UL103 (US).
Newmac recommends an 8” round or 8” square chimney flue (inside dimension), however, this may be reduced to a 7” providing
there is enough draft at the appliance to operate as designed. It is the responsibility of the installer to ensure there is sufficient draft
in all cases. Draft should be between -0.03 and -0.05 ins wc. No other appliance should be connected to this chimney flue, unless
the installation conforms to clause 5 of B365 and providing there is sufficient draft.
amended April 2003
The installation must conform with the regulations of the local authorities having jurisdiction with the applicable Electrical Code,
and C.S.A. Standard B139 “The Installation Code for Oil Burning Appliances and Equipment” and with the regulations in C.S.A.
Standard B365 “The Installation Code for Solid Fuel Burning Appliances and Equipment” when pertaining to supply air plenum
clearances and flue pipe installation. The flue pipe must be black 24 ga pipe minimum.
The flue collar is sized so that a trade size flue pipe fits snugly inside it. Joints in flue pipes, including the connection at the
appliance and the chimney, shall have at least 30mm (1 3/16”) overlap. Flue pipe connections must be secured with at least 3
metal screws or an equivalent mechanical means; and be made tight in accordance with good practice.
The flue products may contain carbon monoxide particularly when the wood fire is being starved for air (made to burn at slow
rate). Therefore, the flue pipe must seal tight and must not be inserted into the return air stream of the circulating blower.
Wood storage should conform to local bylaws, and should not be within minimum clearances for combustible surfaces as
shown above. This furnace must be installed by a qualified furnace serviceman.
COMBUSTION AIR: Where fans are used in the fuel storage area, they should be installed so as not to create negative
pressure in the room where the solid fuel burning appliance is located.
OUTSIDE COMBUSTION AIR: Provision for outside combustion air may be necessary to ensure that fuel-burning appliances
do not discharge products of combustion into the house. Guidelines to determine the need for additional combustion air may
not be adequate for every situation. If in doubt, it is advisable to provide additional air.

4
Outside combustion air may be required if:
1. the solid-fuel-fired appliance does not draw steadily, experiences smoke roll-out, burns poorly, or back-drafts whether or
not there is combustion present;
2. existing fuel-fired equipment in the house, such as fireplaces or other heating appliances, smell, do not operate properly,
suffer smoke roll-out when operated, or back-draft whether or not there is combustion present;
3. any of the above symptoms are alleviated by opening a window slightly on a calm (windless) day;
4. the house is equipped with a well-sealed vapor barrier and tight lifting windows and/or has any powered devices which
exhaust house air;
5. there is excessive condensation on windows in the winter; or
6. a ventilation system is installed in the house.
If these or other indications that infiltration air is inadequate, additional combustion air should be provided from the outdoors.
BELT TENSION: When adjusting the proper pulley setting make certain that the belt is able to flex at least one inch without
movement of the motor pulley.
DUCT INSTALLATION: To prevent excessive noise and temperature rise, limit the minimum return air duct size to at least 250
square inches (in2). Because the unit may be used as a gravity furnace when the power is off, the following is recommended:
1. Locate the furnace as centrally as possible in the home so the best warm air distribution may be enjoyed.
2. Use an extended plenum (central duct) at least one size larger than called for in National Warm Air Standards.
3. Use a minimum pipe size of six inches in diameter in runs and in no case smaller than five inch diameter.
4. Slope extended plenums and runs as much as possible to facilitate gravity flow of warm air.
IMPORTANT: FIG. 4 - MINIMUM DUCT SIZES
Model Return Air Supply Air Static Pressure
CL86/96 250 sq. in. 180 sq. in. .20” W.C.
CL115 250 sq. in. 220 sq. in. .20” W.C.
CL140 250 sq. in. 220 sq. in. .20” W.C.
CL155 280 sq. in. 240 sq. in. .20” W.C.
CL170 300 sq. in. 260 sq. in. .25” W.C.
The above chart gives the MINIMUM free area duct size. The supply air extended plenum should be 8 – 10 feet out from the
furnace with the sizes shown in the chart, then gradually transitioned to the end of duct system. If the plenum is lower than 24
inches high, increase the duct size proportionately. The Supply Air free area for CL-115 C&G is the same as CL-140 C&G
because the wood burning portion of the furnace can produce 140,000 BTU.
HUMIDIFIER: Install humidifier in the return air plenum. This prevents possible damage due to excessive temperatures when
there is a power failure.
Metal connecting ducting from the warm air plenum should be used.
OIL FIRED BLOCKED VENT SWITCH - MODEL WMO-1
Refer to the Newmac and Field Controls Instructions enclosed in the WMO-1 package.
Do not use the WMO-1 Blocked Vent Switch with the Newmac SVS Sealed Vent System
When installed on the chimney vent or on the appliance burner plate according to these instructions, the manually reset WMO-
1 blocked vent switch is designed to shut off power to the oil burner if the hot flue gases in the chimney vent connector pipe
back up sufficiently to activate it. The WMO-1 switch is required on new Newmac oil-fired and combination furnaces or boilers
installed in Canada. It must be installed by a qualified installer in accordance with the manufacturer's installation instructions.
Electrical wiring must be in accordance with applicable codes and the Canadian Electrical Code. Before leaving the appliance
check that the WMO-1 switch and its cover are tightly secured.
Installation on the Burner Plate - combinations - Figs. 5A and 5B
1. See Fig. 5A. Remove the 5/8" diameter plug in the burner plate. Cut or file a hole in the rigid fibreglass insulation, behind
the 5/8" hole in the burner plate, large enough that the WMO-1 securing nut will seat against the back of the burner plate.
Remove one of the securing nuts from the tube of the WMO-1 assembly. Tighten the remaining nut onto the tube as far as
possible.
2. See Fig 5B. With the WMO-1 assembly outside the burner plate, insert the threaded tube end into the 5/8" diameter hole
in the burner plate, re-install the first securing nut onto the tube on the inside of the burner plate. Tighten securely.
CAUTION: Disconnect the electrical power supply before wiring the WMO-1 assembly.
3. See Fig. 5C. Using suitable AC90 flexible (BX) conduit or equivalent, wire the WMO-1 switch in series with the appliance
limit circuit. Connect at the burner junction box.
4. Check the operation of the WMO-1 switch before leaving the appliance. The WMO-1 switch is reset by pushing the square
red button.

5
WMO-1 Blocked Vent Switch Check
Note: take appropriate precautions - this test can produce soot, smoke and fumes. The appliance should not be left unattended
during the test.
1. With the appliance shut down, block the vent pipe at the downstream (chimney) side of the barometric damper.
2. Start the appliance.
3. The WMO-1 switch should stop the oil burner in less than 10 minutes.
4. After the test, turn off the appliance and let it cool.
5. Remove the blockage from the vent pipe.
6. Reset the WMO-1 switch by pushing in the square red button until it clicks.
7. Ensure that the appliance is in a safe condition.
Maintenance and Cleaning
The WMO-1 switch assembly should be checked and cleaned at least once a year and after any time the switch has shut off
the burner.
Cleaning procedure
1. Switch off the electrical power to the appliance.
2. Remove the WMO-1 cover.
3. Remove the two mounting screws for the thermodisc temperature sensor.
4. Carefully pull the sensor to one side.
5. Using a suitable soft brush or cloth carefully clean any soot from the surface of the sensor and the inside of the 5/8"
diameter tube.
6. Replace the sensor and secure with its mounting screws.
7. Check that the wiring is in good condition and secure.
8. Check that the 5/8" diameter tube and its securing nuts are tight.
9. Replace the cover and tighten the mounting screws.
10. Check the operation of the WMO-1 switch as described above.
Troubleshooting
If for any reason the WMO-1 switch shuts the appliance down during operation, the cause of the shut down should be
investigated and corrected before resetting the switch and restarting the appliance. The blockage switch is reset by pushing
the square red button until it clicks.
FIG. 5A FIG. 5B FIG. 5C
Securing Nut
5/8" hole
WMO-1
Burner Plate
Viewport
Securing Nuts
WMO-1
Burner Plate
Burner
View Port
Tube Horizontal
Cad
Cell
T
T
F
F
Limit
Motor
Ignition
WMO-1 Primary Control
Connect WMO-1 at
appliance junction box
CL series combination furnaces:
Connect WMO-1 at the burner
control junction box
(except CL series)
Burner
N

6
FIG. 6 - FLUE PIPE CONNECTION & MINIMUM INSTALLATION CLEARANCES

7
FIG. 7 - CONTROL LOCATIONS

8
FIG. 8A
COMBINATION MODELS CL 115C-170C
FIREBOX INSTALLATION PROCEDURE
WITH STAINLESS STEEL FRONT
FIG. 8B
COMBINATION MODELS CL86C-96C
FIREBOX INSTALLATION PROCEDURE
WITH STAINLESS STEEL FRONT

9
GRATES:
SHIPPING RETAINER should be removed to
allow grates to turn and shake freely.
To remove a grate:
1. Remove front casting
2. Slide grate as far forward as possible
3. Lift rear end of grate approximately 6 inches
4. Slide grate back toward rear of firebox and
up
To install a grate:
1. With rear end of grate higher than front end
slide grate forward so shaft is through grate
retaining hole at front of firebox.
2. Lower rear end of grate and slide rear shaft
of grate into rear retaining hole.
3. Replace front casting if coal is to be burned.
FRONT CASTING:
Use for coal burning only.
Installation in CL86-96G
1. Remove top brick lock
2. Put casting through firedoor and hold tight to
inside front of firebox above the brick.
Square pattern on casting should be facing
into the firebox.
3. Lower casting so it rests on round shaft of
grates.
FRONT CASTING:
Use for coal burning only.
Installation in CL115-170G
1. Put casting through firedoor and hold tight to
inside front of firebox above top of liners.
Square pattern on casting should be facing
into the firebox.
2. Lower casting so it rests on round shaft of
grate.
CAST LINERS:
In CL115-170G
Hook liner pieces in retainers as shown. Install
on sequence shown by numbers 1 to 6. The
other 3 pieces are installed on opposite side from
4, 5, 6 beginning at back corner.
NOTE: This front casting is not required when
burning wood. However, this casting or provided
grate plate should be placed on top of the grates
for more efficient wood burning and to prevent
wood coals from falling through and warping
grates.
FIG. 9A - CL86G-96G FIREBOX
FIG. 9B - CL115G-170G FIREBOX
FIG. - 9C – GRATE PLATE

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COMBINATION OPERATING INSTRUCTIONS
1. When the installation is complete set both burner and solid fuel thermostats to the bottom of the scale.
2. Close the supply switch and turn the solid fuel thermostat above room temperature. The draft fan should operate.
If this fails to happen, check (a) power supply, (b) voltage on secondary side of control relay – transformer, (c) correct
wiring hook up, (d) correct voltage at fan motor. If (a) to (d) check OK, the fan is defective.
3. Open the line switch, turn the solid fuel thermostat to its lowest setting and the oil burner thermostat above room
temperature. Remove the air bleed plug from the pump (refer to Diagram attached to pump) (a) open oil supply valve, (b)
place a container in position to catch foam, (c) close the line switch and after pure oil is emitted, open the line switch and
replace bleed plug, (d) close the line switch and the oil burner should run normally after a few seconds.
4. Adjust oil burner air control so that a # 1 or less smoke is arrived at by means of a smoke test. The damper in the wood
firedoor must be closed during this procedure. If a smoke tester is not available, slowly close the air adjustment until the
fire becomes smokey. Slowly open the air adjustment until there is a small amount of smoke on the flame tips.
5. By means of the barometric draft regulator – adjust to a - .03 draft at the chimney. This must be done by means of a draft
meter. The maximum draft is not to be more than - .05 as damage can result to the furnace when used as a gravity unit.
The test must be made between the flue collar on the furnace and the draft regulator. A flue gas analysis should be made
and the unit adjusted so that between a 8 % and 10 % CO2is registered.
6. The combination fan & limit switch is thermally operated. The limit side is connected in series to the power supply to the oil
burner. Because of blower failure, dirty filters or some other cause, the present limit will interrupt the power supply to the
burner. If the limit switch shuts the unit down it may be because of a common fault, not enough return air supply or a
supply air grill being covered by a rug.
The load side of a limit also supplies power to the transformer – relay. If the unit goes off on limit, the draft fan will shut off.
7. The fan side of the combination control is adjustable with fan on and off fingers. If the furnace fan has been adjusted to
deliver a 75oF temperature rise (difference between return air and supply air) a setting of fan on 130oF and off at 90o - 100
oF is comfortable. The temperature rise in accomplished by speeding up or slowing down the fan by means of the
adjustable pulley on the fan motor. Maximum temperature rise is 85oF on models CL 115-170, and 75oF on CL 86-96.
The fan speed is adjusted at the factory to give a 75oF temperature rise at a .20” W.C. or .25”W.C. static pressure (air
resistance in duct work). Since most home duct work does not have resistance of the value the fan speed must be
adjusted by means of the following:
With the oil burner operating, place a thermometer in the warm air supply (place thermometer so that it cannot se the heat
exchanger) and measure the temperature after the unit has been operating for at least 5 minutes. (Be sure the blower door
is closed) measure the return air (at return air grill). If the difference is less than 75oF slow the fan speed by opening the
motor pulley or is it is greater than 75oF close the pulley. In the majority of cases the fan must be slowed.
By means of the motor adjustment bracket, adjust the motor so that the belt may be deflected approximately one inch.
This adjustment is important as a tight belt causes excessive fan bearing wear, it uses more electricity and it is noisy.
If the above instructions are followed, continuous air circulation can be comfortably accomplished without the added
expense of a two speed motor, simply by using the manual fan switch on the face of the combination control.
8. Before loading the solid fuel firebox, turn the thermostat up to insure that the draft fan is on: after the fire is established set
thermostat to desired temperature. IMPORTANT: Learn how to load your solid fuel box with wood (or coal (G model)) so
as to maintain a comfortable home temperature. The amount of fuel required depends upon your home’s heating
requirements.
9. The oil burner thermostat on combination furnaces is generally set about 50lower than the solid fuel side. When the solid
fuel thermostat is calling for heat, the draft fan is on. If the fuel has been depleted and cannot keep the temperature up,
the oil burner thermostat brings the oil burner on. The NEWMAC COMBINATION FURNACE has a relay that stops the
draft fan when the oil burner comes on, making the oil fuel side efficient, and making the furnace operate safely.
10. (a) By means of a slide Draft Control above the firedoor, you can control the amount of combustion air allowed into the fire
box. Move this slide plate to the open position that allows sufficient combustion air in for the type of solid fuel you are

11
burning. For coal it must be maximum; for wood it will vary with size and type. For added efficiency, when heating with oil
only, close the slide plate and adjust your solid fuel thermostat to its lowest temperature setting.
(b) FURNACE LABEL ILLUSTRATION
11. For safe operating procedures for solid fuel burning, refer to the notice label on the furnace.
 The furnace room must have adequate air for combustion. If the unit is in a confined space, on square inch of free air
access for every 1,000 BTU must be provided.
 Use a chimney suitable for solid fuel, which must be kept free of accumulations of soot and ash.
 Accumulations of soot and ash not only create a fire hazard but cause poor efficiency.
 In case of a soot fire, move all thermostats to their lowest setting, close the barometric draft regulator and call the fire
department.
POWER FAILURE
In case of a prolonged power failure, remove the blower access doors to allow freer air movements. The draft fan will be off. If
more combustion air is needed, open the damper in the furnace door.
When the electrical power is restored make sure panels are installed in original position and slide plate damper is closed.
DURING POWER FAILURE OPERATION: DO NOT CHARGE the solid fuel side higher than half way up the liner because
overheating may result at the warm air outlets.
OIL BURNER OPERATING INSTRUCTIONS
GENERAL CARE
This burner is fully automatic in operation. All adjustments have been carefully set and should not be changed. Keep burner
free from excess dirt and moisture. Any oil leaks, however small, should receive immediate attention. The oil filters should be
cleaned once a year by the service man. The motor should be given a few drops of light oil two or three times a year. No other
parts require lubrication.
FUEL
The supply tank should be kept at least one quarter full. Outside underground storage tanks if not equipped with a special
gauge, are gauged by stick. Recommended grade of fuel: No. 2 Furnace Oil.
CAUTION
1. DO NOT USE GASOLINE CRANKCASE OR ANY OIL CONTAINING GASOLINE.
2. DO NOT TAMPER WITH THE UNIT OR CONTROLS, CALL THE SERVICEMAN.
3. Do not attempt to start burner when excess oil has accumulated, when the heating unit is full of vapour, or when the
combustion chamber is very hot.
4. Do not start the burner unless the blower access door is secured in place.
5. DO NOT BURN GARBAGE OR PAPER IN THE HEATING SYSTEM, AND NEVER LEAVE PAPER OR RAGS AROUND
THE UNIT.
HEATING PLANT
Give your Heating unit the proper care and attention. The use of the furnace as an incinerator is not recommended. Heating
unit flues should be kept clean for economical operation. Dampers are set by installation men and should not be changed.
Free ventilation must be permanently provided in the room where the burner installation is made.
CONTROLS
The operation of the burner is normally controlled by room thermostat, which may be set for any temperature desired, usually
70 0F. If a higher or lower temperature is desired, the indicator should be moved to the proper point on the scale. To shut
down burner at any time, turn main switch to off position.
DRAFT CONTROL
OIL ONLY - SOLID FUEL
CLOSED MINIMUM MAXIMUM

12
SUMMER SHUT DOWN
When burner is not to be used during the summer months turn off burner main switch. If the heating unit room is damp, protect
burner against dirt and moisture with light cover.
SAFETY SHUT-OFF
An emergency oil shut-off valve should be installed as required by local ordinance. Always keep the valve shut-off if the burner
is shut down for an extended period of time.
SERVICE:
If burner fails to run when the thermostat or other operating control is calling for heat see that the main switch is turned on and
that fuses are not blown. Be sure there is oil in the supply tank and that the electric service to the building has not been
temporarily interrupted. Press button on burner control box and if burner still fails to start call the service man. A periodic
inspection of the burner is recommended.
BURNING WOOD OPERATING INSTRUCTIONS
When installation is complete, close the supply switch and turn the thermostat above room temperature.
Check to make sure the forced draft fan above the fire door is operating when the thermostat is set above room temperature.
The draft fan should be off when thermostat is set below room temperature.
The maximum draft is not to be more than - .05 as damage may result to the furnace when operated as a gravity unit.
The circulating air blower speed is adjusted at the factory to give an adequate temperature rise under most conditions.
However, because of various temperatures that can result from burning wood, the blower speed can be adjusted by the motor
pulley. Under no circumstances should the temperature rise be more than 80oF (27oF).
NOTE:Before loading the fire box, turn the thermostat up to insure that the draft fan is on. This provides an air curtain to avoid smoke
roll out during loading and fans the coals to assist the ignition process of your new fuel. It also helps to promote draft when
there is inadequate draft. After the fire is established, set the thermostat to desired temperature.
To start the fire, turn up the thermostat to Maximum setting to turn ON Forced Draft Fan. Place some newspaper crumpled up
in the bottom of the firebox on top of the minimum requirement of 2” of sand , ash or firebrick. Add some small kindling and
light the fire. When the fire starts add some larger pieces of kindling or wood until you have a good fire. The idea is to
ultimately end up with a good bed of ash and coals which helps to maintain a good controllable fire.
When reloading the firebox there will be a build up of ash and coals from the previous fire. Rake the coals mixed with ash to
the front of the firebox which places the coals at the front. Throw in your wood and the fire should light in a few minutes.
When the firebox gets full of ash (within one inch of door level), some morning , before loading the firebox , push or rake the
coals to the rear of the firebox. Remove the ash from the front of the firebox using only the shovel supplied for this purpose.
When the ashes only are removed from the front , rake the coals from the back to the front. Throw in your wood and the fire will
again be burning in a few minutes. The fire burns best when the ashes are 3” to 4” below the fire door level.
Return wood thermostat in main living space to regular setting.
For safe operating procedure, refer to the “Notice” label on the furnace.
COMBUSTION AIR CONTROL
The amount of combustion air allowed to enter into the firebox can be controlled by means of the Draft Control slide on the draft
fan mounting plate. Set this slide plate to the position that allows sufficient combustion air in for the type of solid fuel being
burned. Normally the setting is in the center between maximum and minimum, then if additional control is needed it can be
adjusted accordingly. When burning coal it must be set at maximum, for burning wood it will vary with size and type. DO NOT
LET THE COALS/ASHES BUILD UP ANY HIGHER THAN HALF WAY UP THE FIRE BOX LINER.
POWER FAILURE
In case of prolonged power failure, remove the blower access door and air filters. The draft fan will be off, so if more
combustion air is needed for the wood fire, open the slide plate damper in the fire door. This damper must be closed when
power is returned to normal.
DO NOT CHARGE the fire box higher than half way up the liner as overheating may result.

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COAL BURNING TIPS
Burn ONLY anthracite (hard) coal of the “chestnut” size. Bituminous (soft) coal is not recommended because it has a high ash
and sulphur content which means more cleaning and greater pollution. Also bituminous coal produces excessive smoke and
an excessive amount of dirt and ash, which will plug the heating unit and the flue pipe possibly causing smoke damage or
danger of carbon monoxide poisoning.
Coal is not as easy to burn as wood. It requires patience and a very specific and regular procedure of loading, shaking,
adjusting, etc. If you do not follow the correct procedure, the coal fire will go out. This can happen in a very short space of time
and once the process of extinction has started, it is almost impossible to reverse.
After a coal fire goes out, all the coal must be emptied from the furnace and the complete starting process must be repeated.
The coal burning learning process is often long and frustrating, but once the proper procedure is established and followed, coal
burning becomes a reasonably simple process, with the benefits of long burn times and evenness of output over the entire
length of burn.
STARTING UP A NEW FIRE
The flue draft must be .05” W.C. to allow combustion gases to flow freely out the chimney. Turn the solid fuel thermostat up to
a setting well above th4e room temperature to start the draft fan. Use paper and dry kindling to start the fire.
Add small compact pieces of hardwood when the kindling is burning hot. Keep the draft slide plate in the ash door fully open to
establish a hot fire. The ash door may be opened for start-up. However, close the ash door before opening the fire door to
prevent smoke from emitting out the fire door opening.
When a substantial bed of red coals is built up start adding coal, small amounts at a time. Continue adding small amounts of
coal until there is a solid bed of burning coal. Do not add too much at one time. Allow sufficient time between each small
loading (at least 10 to 15 minutes) so that each loading has time to thoroughly ignite before the next load is put in. For
maximum burning efficiency, always fill the furnace to the highest level possible. A deep bed of coal always will burn more
satisfactorily than a shallow bed.
Keep the draft fan running until you are sure the fire is continuing to burn hot, then turn the thermostat to the desired room
temperature setting. If the ash door has been opened, close it to prevent over firing, which can severely damage the furnace.
LOADING
Coal should be added to the fire at least every twelve hours. Coal never should be added unless there is a reasonably hot fire.
If the fire is burning hot and there is a deep bed of coals, full loads of coal can be added at any time. However, if there is not a
deep bed of coals, it is best to add small amounts of coal at first.
SHAKING
Shaking should only be done only with a hot fire.
Shaking should be done at least once a day, but not more than twice a day.
Best results from shaking will occur if short “chopping” strokes are used rather than long even strokes.
The amount of shaking is critical. Too little or too much can extinguish a fire due to blocked air flow. The proper amount
normally occurs when red coals first start to drop through onto the bed of ashes. Be sure that a small amount of ash is left
on the grates to protect them from the direct heat of the burning coal. Grates must be kept level or they will warp.
MAINTENANCE
Ashes never should be allowed to accumulate in the ash pit so they in any way impede the flow of combustion air to the fire.
Excess ash accumulation can cause the fire to go out, and also can cause severe damage to the grates because they cannot
cool from a flow of air beneath them. Ashes MUST be removed daily and put in a metal container with a lid.
Clinkers can occur in any coal furnace. They are pieces of fused ash that are hard. They can become large, and therefore
cannot be shaken through the grates in a coal furnace. When there is an appreciable accumulation, the fire will go out because
insufficient air is allowed to pass through the clinkers to the burning coal. Once clinkers have formed, they can be removed
only from above the grates. This usually means the fire must be allowed to die out before they can be removed.
Clinker formation can occur from a number of different causes or a combination of causes. Some of these are as follows:
Too hot a fire (too much draft)
Too shallow a bed of coals
Too deep a bed of coals
Excess shaking
Poking the fire from the top
Poor quality coal – excess ash content
Too little air (draft) after a long hot fire

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SAFETY
Whenever a loading door is opened, it always should be cracked slightly before fully opening to allow oxygen to enter and
burn any combustible gases that are present. Failure to do this could result in sudden ignition of the unburned gases when the
door is opened.
A furnace never should be filled with excess coal so that the flue gas exit is in anyway blocked or impeded. Burning coal
generates carbon monoxide. If the flue gas exit is blocked, the carbon monoxide can be forced out of the furnace into the room
with possible fatal consequences. Never burn coal in any furnace that does not have an airtight, unified chimney system. The
furnace should be used only with chimney systems that provide a strong, reliable draft. With the exception of the start up
period, an ash pit door never should be left open.
Do not use an automatic stoker with this furnace.
MAINTENANCE
Failure to follow these instructions may result in poor efficiency, excessive corrosion of the heat exchanger and the possibility of
a creosote fire.
DAILY: Furnace model with grates must have the ashes removed daily. This is to prevent warping of the grates and prevent
any interruption in the combustion air flow. Ashes must be put in a metal container with a lid on it before moving the ashes to
the outdoors.
MONTHLY: Furnace heat exchanger and fluepipe – Furnaces without grates must have ashes removed on a minimum of a
monthly basis depending on the ash build up. The complete heat exchanger and flue pipe should be thoroughly inspected for
creosote deposits, ash buildup, etc. Creosote or ash deposits must be removed by scraping and/or brushing the deposits from
the heat exchanger surfaces. An industrial vacuum cleaner may be used to assist in the removal of such deposits. A complete
cleaning must be done immediately at the end of each heating season. If this is not done, condensation from the summer , or
any other source, will mix with the ash or creosote and cause corrosion of the heat exchanger. Corrosion is not covered under
warranty.
NOTE: Establish a routine for the storage of fuel, care of the appliance, and firing techniques. Check daily for creosote buildup
until experience shows how often cleaning is necessary. Be aware that the hotter the fire, the less creosote is deposited and
weekly cleaning may be necessary in mild weather even though monthly cleaning may be enough in the coldest months. Have
a clearly understood plan to handle a chimney fire.
Chimney: Chemical chimney cleaners are not recommended as they could damage the furnace heat exchanger and flue pipe.
One of the most efficient methods to clean a chimney is to lower a stiff brush (chimney brush) tied to a heavy weight down the
chimney on a rope. Work the brush up and down the chimney to scrape the accumulated creosote and soot off the chimney
walls. Remove the residue from the cleanout at the base of the chimney.
SEMI-ANNUALLY: Draft Fan – oil motor with #20 non-detergent oil.
ANNUALLY: Burner Motor and Blower Motor – oil with #20 non-detergent oil. In the spring, after the furnace is shut down for
the summer, clean the heat exchanger of all soot, ash and creosote accumulation, remove all ashes, clean the flue pipe and
clean the chimney.
NOTICE
IMPORTANT:
 This furnace must be installed according to CSA Standard B139 “Installation Code for Oil Burning Equipment”. Furnace
must be installed as per Newmac clearances. Venting must be installed according to CSA Standard B365 “Installation
Code for Solid Fuel Burning Appliances and Equipment”.
 The solid fuel side of this furnace is designed to burn wood only, unless equipped with grates thus allowing the burning of
coal. Burn anthracite coal only.
 Proper flue draft must be maintained to allow combustion gases to flow freely out the chimney.
 ONLY chimney approved for wood burning may be used, ie. ULC S629-650 C, UL 103 or masonry chimney is acceptable.
FOR SAFE OPERATION:
 Load fuel carefully or damage may result.
 Do not load solid fuel higher than the fire box liner.
 Do not use chemical or fluid fire starters.
 Do not attempt to light a fire when there is oil vapour present.
 Minimum flue draft - - .03” W.C.
 Maximum flue draft - - .05”W.C.
 Do not burn garbage, manufactured fire logs, gasoline, naptha or crankcase oil.
 Keep the furnace doors tightly closed except for refueling and cleaning.

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 Maintain all door seals in good condition.
 To maintain furnace efficiency and prevent soot fires, clean the heat exchanger, flue pipes, and chimney at the end of each
heating season and as frequently as required during the heating season to prevent soot accumulation. The furnace and
flue must be in good condition. Turn off power to the furnace when cleaning the furnace and flue.
 Do not store fuel or combustible material within the furnace clearances.
 Do not use salt wood (driftwood gathered from the seashore).
TO PREVENT DAMAGE:
 Do not set the flue draft above -- .05” W.C. as the fire could burn out of control.
 Do not open the furnace door slide plate damper during normal operation.
 Furnaces with grates must have ashes removed daily.
 Furnaces without grates require a minimum of 2” of sand or ash in the bottom of the fire box.
SPECIAL PROCEDURES
POWER FAILURE:
(1) Remove the blower access door and air filters for better air circulation. If the furnace is in an enclosed area (furnace room)
open the door to the room.
(2) To control the fire open the slide plate damper in the furnace door. THIS DAMPER SHOULD BE CLOSED FOR NORMAL
OPERATION.
(3) Do not load the fire box higher than half way up the fire box liner.
SOOT FIRE
Close all sources of air that can reach the fire through the furnace and draft regulator. Insure the draft fan above the fire door is
turned off. Do not attempt to take the flue pipes down until the fire has been completely extinguished.
RUNAWAY FIRE
This can be caused by too high a flue draft or excessive fueling.
(1) Close all sources of air to the furnace. Insure draft fan is turned off.
(2) Set the barometric draft regulator wide open to reduce draft. The excessive heat caused by a runaway fire may damage
the furnace safety controls. Their operation should be checked before the furnace is returned to service. After a soot or
runaway fire inspect chimney connection and chimney.
AIR CONDITIONING
The following thin-line boxed sections are excerpts from NFPA 90B, Standard for Installation of Warm Air Heating and Air
Conditioning Systems:
4-1.4 Air Cooling Equipment. Mechanical refrigeration used with air duct systems shall be installed in accordance with
ANSI/ASHRAE 15, Safety Code for Mechanical Refrigeration.
4-1.5 Furnaces Used with Cooling Units.
4-1.5.1 Combination units in which a refrigeration coil is provided shall have the refrigeration coil located downstream from the
heating furnace, or the coil shall be located parallel to the heating furnace.
Exception: Where the heating furnace is specifically approved for installation downstream from the coil.
4-1.5.1.1 When the heating furnace is located upstream from the coil, the coil shall be designed or equipped so as not to
develop excessive temperatures and pressures. In those cases where the coil is located parallel to the heating furnace,
dampers or other means to control flow of air shall be adequate to prevent chilled air from entering the furnace section. If the
dampers are manually operated, means shall be provided to prevent operation of either unit unless the damper is in the full
heat or cool position. Adequate means shall be provided for the disposal of condensate and to prevent dripping of condensate
on the heating element.
4-1.5.2 Furnaces (including duct furnaces) may be installed downstream from the evaporative coolers or air washers provided
that condensate will not fall into any portion of burners, pilots, or burner carry-over arms and provided that the heating element
is made of corrosion-resistant material, such as stainless steel, ceramic-coated steel, or an aluminum coated steel in which the
bond between the steel and the aluminum is an iron-aluminum alloy. Air washers operating with chilled water which delivers air
below the dew point of the ambient air at the appliance are considered as refrigeration systems.
4-1.5.3 The capacity of the blower shall be adequate to overcome the external static pressure imposed by the combined
heating and cooling units at the air throughput required for heating or cooling, whichever is greater.
4-3.6 Accessory Equipment. Material used in the construction of accessory equipment attached to or installed in a supply
or return system shall comply with the requirements for the materials of that portion of the system to which it is attached. This
shall not preclude the attachment to a plenum or duct of small devices, such as humidifiers, specifically listed for such use.
Motors and electrical wiring and equipment shall comply with section 4-2.

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CONVERSION OF CL115/170 C & G TO 5 TONS A/C
 ¾ HP Motor Recommended.
 7” X ¾ Blower Pulley Recommended (Standard is 8").
 41” Blower Belt required for 7” pulley.
 See A/C wiring diagram with Honeywell 8405A Relay (or equivalent).
 Install a By-Pass damper or blast as per sketch “Typical A/C Coil Installation”.
 For CL115, 140, 155, 170, a minimum supply duct free area of 220, 220, 240, 260 sq. in. respectively, must be maintained
at all times during heating the cycle.
 For CL115, 140, 155, 170, a minimum return duct free area of 250, 250, 280, 300, sq. in. respectively, must be maintained
at all times during heating the cycle.
 A/C coils installed above heat exchanger should be located over oil section.
 A/C coils installed above heat exchanger should be located as high as possible and no less than 12 inches above the top
of the heat exchanger.
 A/C coils must not be located on return air side.
 Ensure condensate from coil does not drip onto heat exchanger surfaces.
 Condensate drip trays must be metal.
 Ensure duct sizes are as specified in Installation, Operating and Service Manual.
 Increased air flows may require more frequent air filter maintenance.
Emerson ¾ h.p. Single Speed Belt Drive Motor: p/n 2020020
3-1/2” X 5/8” VS motor pulley: p/n 2240008.
Blower pulley, 7” X ¾”: p/n 2240002.
41” Blower Belt: p/n 2240041.
Honeywell 8405A fan center transformer relay: p/n 2010015.
Honeywell 8285A fan center transformer relay: p/n 2010041.
Honeywell 8239B fan center transformer relay: p/n 2010059.
The unit must be installed in accordance with the National Warm Air Heating and Air Conditioning Association Standards or
generally accepted equivalent standards. Consult appropriate provincial, state, or local codes. Regulations governing
installation requirements may vary from the ones presented here
CONVERSION OF CL86 C & G TO 4 TONS A/C
 1/2 HP Motor Recommended.
 Use existing motor pulley.
 7” X ¾ Blower Pulley Recommended (Standard is 8").
 39” X 1/2" Blower Belt required for 7” pulley.
 See A/C wiring diagram with Honeywell 8405A Relay (or equivalent).
 Install a By-Pass damper or blast as per sketch “Typical A/C Coil Installation”.
 A minimum supply duct free area of 180 square inches must be maintained at all times during heating the cycle.
 A minimum return duct free area of 250 square inches must be maintained at all times during heating the cycle.
 A/C coils installed above heat exchanger should be located over oil section.
 A/C coils installed above heat exchanger should be located as high as possible and no less than 12 inches above the top
of the heat exchanger.
 A/C coils must not be located on return air side.
 Ensure condensate from coil does not drip onto heat exchanger surfaces.
 Condensate drip trays must be metal.
 Ensure duct sizes are as specified in Installation, Operating and Service Manual.
 Increased air flows may require more frequent air filter maintenance.
Emerson 1/2 h.p. Single Speed Belt Drive Motor: p/n 2020003
Blower pulley, 7” X ¾”: p/n 2240002.
39” X 1/2" Blower Belt: p/n 2240039.
Honeywell 8405A fan center transformer relay: p/n 2010015.
Honeywell 8285A fan center transformer relay: p/n 2010041.
Honeywell 8239B fan center transformer relay: p/n 2010059.
The unit must be installed in accordance with the National Warm Air Heating and Air Conditioning Association Standards or
generally accepted equivalent standards. Consult appropriate provincial, state, or local codes. Regulations governing
installation requirements may vary from the ones presented here

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FIG. 10 - TYPICAL A/C COIL INSTALLATION

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FIG. 11 – WIRING DIAGRAM WITH AIR CONDITIONING

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FIG. 12 - CL SERIES WIRING DIAGRAM