Exhausto RS 9 Installation instructions

1200 Northmeadow Parkway, STE 180 • Roswell, GA 30076
[phone] [phone] • Fax [phone]
[email protected] • us.exhausto.com
RS Chimney Fan
For Gas & Oil Applications
CAN
Installation & Operating Manual
USA
3000270 10.01
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Table of Contents:
1. Introduction
1.1 System Design .....................................................................................3
1.2 Code Compliance and Listings ............................................................3
1.3 Warranty Information............................................................................3
1.4 Package Shipment ...............................................................................3
1.5 Dimensional Data.................................................................................4
1.6 Planning Ahead ....................................................................................5
2. Installing the Chimney Fan
2.1 Single Fan on Steel Chimney...............................................................6
2.2 Multiple Fans on Steel Chimney ..........................................................7
2.3 Single Fan on Brick Chimney...............................................................7
2.4 Multiple fans on Brick Chimney............................................................8
2.5 Wall Mounting of Chimney Fan ............................................................8
2.6 Installation for high temperatures.........................................................8
3. Installing Safety System
3.1 Installing Dwyer Pressure Switch.........................................................9
4. Wiring the Chimney Fan
4.1 General ..............................................................................................10
4.2 Wiring diagram for solenoid operated gas valve ................................ 11
4.3 Wiring diagram for burner control circuit ............................................ 11
5. System Start-Up
5.1 System testing....................................................................................12
5.2 Adjusting the Chimney Fan Speed.....................................................12
5.3 Adjusting the pressure switch setting.................................................12
6. Maintenance
6.1 Prior to Cleaning ................................................................................13
6.2 Care and cleaning ..............................................................................13
Installation and adjustment instructions
for
EXHAUSTO
Chimney Fan Type
RS
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Symbol Legend:
The following terms are used throughout this manual to bring attention to the presence of potential hazards or to
important information concerning the product.
Danger: Indicates an imminently hazardous situation which, if not avoided, will result in death, serious injury or
substantial property damage.
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1. Introduction
1.1 System Design
EXHAUSTO model RS Chimney Fan is a chimney top mounted ventilator that is designed to provide large
ue gas volume capacities. It is designed and intended for use with oil/gas red central space heating
systems, for volume water heating or for combination space heating/volume water heating.
This product is developed to prevent draft problems from occurring by creating a mechanical draft in venting
systems and thereby also increasing the capacity and efciency of a venting system.
The use of the EXHAUSTO Chimney Fan is not restricted to any type of chimney, because the fan creates a
negative pressure (below atmospheric) in the chimney.
1.2 Code Compliance and Listings
Installations must conform to requirements of the authority having jurisdiction. Where required by the
authority having jurisdiction, the installation must also conform to the Standard for Draft Equipment.
All electrical wiring must be in accordance with the requirements of authority having jurisdiction or, in
absence of such requirements, with the National Electrical Code.
The EXHAUSTO Chimney Fan, Model RS, is tested by the ETL Testing Laboratories and is labeled and
listed for use with non-solid fuel applications.
Caution: The chimney fan must be interlocked with the connected appliance(s) to insure proper
combustion and to avoid ue gas spillage.
1.3 Warranty Information
Conditions available from EXHAUSTO, Inc.
1.4 Package Shipment
The packing list (attached to one of the packages) clearly lists all items in the shipment and each package
has a label showing the contents. Check the list against all materials on the job site for completeness.
!
Caution: Indicates an imminently hazardous situation which, if not avoided, may result in personal injury or
property damage.
Notice: Used to notify of special instructions on installation, operation or maintenance which are important to
equipment but not related to personal injury hazards.
Warning: Indicates an imminently hazardous situation which, if not avoided, will result in death, serious injury
or substantial property damage.
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1.5 Dimensional Data
1 Junction Box 7 Base Plate
2 Conduit/cord 8 Locking Nut
3 Motor 9 Inlet
4 Motor Housing 10 Axial Vane
5 Cooling Plates 11 Hinges
6 Bird Screen
Fan Size RS 9 RS 12 RS 14 RS 16
A10 11 13 16
B12 14 16 19
C11 2/5 14 15 4/5 18
D3 3 3/5 4 4
E8 1/2 11 1/8 12 3/4 14 3/4
Weight (lbs) 28 36 46 60
Elec. Character 120/1/60
Amps 0.4 1.2 1.4 3.9
Watts 20 80 100 250
RPM 1600
Max. CFM 450 950 1400 2000
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1.6 Planning Ahead
Important to note:
1. Observe proper combustion air requirements.
2. Provide a rm support system for the chimney fan.
3. Determine the type of system involved.
4. Observe proper safety measures are taken to assure system will shut down in case of insufcient
draft in vent system.
Combustion Air Requirements: Provisions for combustion air must be in accordance with applicable
local codes.
If the heating system is installed in an unconned space, adequate air will be available via normal
inltration.
If the heating system is installed in a conned space, (a space with a volume of less than 50 cubic feet
per 1000 Btu/hr of input for all fuel burning equipment) or building construction is unusually tight, adequate
air for combustion must be provided by two openings: one located about 6” below the ceiling, the other
about 6” above the oor. Each opening must have a minimum free area as follows:
1. One square inch per 4000 Btu/hr of input when communicating directly with the outside or through
a vertical duct.
2. One square inch per 2000 Btu/hr of input when communicating through horizontal ducts to outside.
3. One square inch per 1000 Btu/hr of input when ventilation air is provided by openings in doors, etc.
to adjoining spaces having adequate inltration.
Warning: Adequate fresh air must be provided for combustion; otherwise, improper operation and inadequate
venting of deadly ue gases may result.
Support system for the chimney fan: Prior to installation of the chimney fan, it must be assured the
chimney can safely carry the weight of the chimney fan.
A steel chimney should be well supported at the roof penetration point. If the chimney extends more
than 20’ above the roof, the chimney and the fan should be secured by wires attached on the chimney
and on the roof at 2 to 3 different points.
Brick chimneys usually do not need any kind of support to carry the weight of the chimney fan.
System Type
To determine the type of system is important in order to understand what to expect from the system.
Direct connect oil or gas appliances (no draft hood) normally do not require any mechanical draft
adjustment. However, if there are long horizontal breechings and far between the appliances, it is a good
idea to install mechanical vent-dampers, so adjustments of the draft can easily be made.
Draft hood systems should generally speaking have vent dampers installed. The vent dampers are used to
balance the system and assure that only a minimum of dilution air is pulled through the draft hoods.
Safety Devices
Local codes usually require installation of safety devices, when mechanical draft is provided in an oil or
gas fueled system.
Make sure a differential pressure switch (fan proving switch) is installed to assure that no appliance will
re unless there is a proven draft.
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1
3
2
2. Installing the Chimney Fan
Transport Safety Device
If a transport safety device is present, remove it from the
vane and make sure that the vane can revolve without
hindrance.
RS 14/16: Before mounting, the transport safety device on
the hinges must be removed.
2.1 Single Fan on Steel Chimney
Step 1: Prepare fan location
If a stack cap is already installed, it must be removed. The
steel adapter (FRS) slides right into the chimney, where the
long collar engagement ensures safe anchoring. If
necessary, the adaptor can be secured by means of long
self-tapping stainless steel screws into the side of the collar
through the chimney wall.
Measure the inside diameter of the ue and cut a
corresponding hole in the center of the ber mat. If the ue is
so big that the throat in the adapter has been reduced to t
the throat of the fan, the hole in the ber mat should
correspond to the throat.
The aluminum foil on the ber mat must face upward (against
fan base).
Step 2: Preparation of fan
Locate the installation brackets in the grooves on the under
side of the fan base, using the bolts and nuts supplied to
secure the brackets. Note that the bolts shall be
installed from the bottom side in the two inner holes.
Adjust the nal position of the installation brackets
ensuring that there is a small gap between the brackets
and the ue wall/adapter throat. Tighten the nuts.
If the brackets touch the ue wall, it is likely to create some
vibration noise.
Step 3: Attaching the fan
The chimney fan is now ready for installation on the top of the
chimney. Place the ber mat with the aluminum foil facing
upwards on the top of the adapter, and place the fan on top
of the mat.
If extremely strong winds constantly surround the top of the
chimney, the chimney fan must be secured by using two
safety wires.
Caution: Under conditions with extremely strong
winds constantly surrounding the top of the
chimney, the chimney fan must be secured by steel
wires or similar.
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2.2 Multiple Fans on Steel Chimney
If two or more chimney fans are required to create sufcient
draft, installation procedures are the same as for single fan
installation on a steel chimney. The only difference is that the
fans are sitting next to each other on the top of the chimney.
When installing multiple fans, it is extremely important that
the fans are of the same model and size.
2.3 Single Fan on Brick Chimney
Step 1: Prepare fan location
The installation procedure is the same whether the ue is
round or square. If a clay tile ue liner is installed, it might
stick up a few inches. Cut it back so it is ush with the
chimney crown.
Measure the inside diameter of the ue, cut a corresponding
hole in the ber mat leaving a minimum distance of 3/4” to
any side of the ber mat.
The aluminum foil on the ber mat must face upwards
(against fan base).
Step 2: Preparation of fan
Locate the installation brackets in the grooves on the
underside of the fan base using the bolts and nuts supplied,
to secure the brackets. Note that the bolts shall be installed
from the bottom side in the two inner holes.
Adjust the nal position of the brackets ensuring that there is
clearance between the brackets and the ue wall. If the
brackets touch the wall, it may generate some vibration
noise.
Step 3: Attaching the fan
The chimney fan is now ready for installation on the top of the
chimney. Place ber mat with the aluminum foil facing
upwards on the top of the chimney, and place the fan on
top of the mat.
Caution: Under conditions with extremely strong
winds constantly surrounding the top of the
chimney, the chimney fan must be secured by steel
wires or similar.
2
3
1
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2.4 Multiple Fans on a Brick Chimney
If two or more fans are required to create sufcient draft, a
special adapter plate is required. The adapter should be
made of stainless steel (14 GA or thicker), depending on the
size and the fan models used.
The two holes in the plate should match the throat diameter
of the fan model used and the distance from center to center
should be at least equal to the fan width (dimension “B” in
1.5. Dimensional Data).
The adapter should be sealed with silicone and bolted onto
the top.
2.5 Wall Mounting of Chimney Fan
When mounting the chimney fan on a wall, the installation
instructions for installation on a steel chimney should be
followed. Use of the adapter FRS is not necessary.
To ease installation, detach the fan base by removing the
bolts holding the hinges together. Center fan base over outlet
and bolt the base onto the wall with the hinges pointing
upwards.
After mounting the base securely, attach the fan motor
housing by assembling the fan hinges again. Seal with
silicone all around the ber mat to prevent rain from entering
the ue.
2.6 Installation for high temperatures
If the fan is used for applications where the ue gas
temperatures exceed 400°F at the ue exit, and does not
exceed 650°F, dilution bolts must be used.
Dilution bolts will cause cool air to dilute the warm ue gas,
by lifting the fan and leaving space so the cool air can get
in under the fan base.
The dilution bolts should be installed in the outer holes in
the fan base.
The dilution bolts are adjustable and should be adjusted so
the ue gas temperature does not exceed 400°F when
discharged through the fan.
When using dilution bolts the fan’s actual capacity is reduced
and a stronger model may be required.
The ber mat is not required when using dilution bolts.
2
3
1
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3. Installing Safety Systems
3.1 Installing Dwyer Pressure Switch
Step 1:
Select a location that is free from excessive vibration, corrosive
atmosphere and where the ambient temperature is within the
limits of the switch. The distance from the switch to the place
where the probe is inserted in the pipe system should not exceed
5 feet.
Step 2:
Mount the standard switch with the diaphragm in a vertical
position. Some switches are position sensitive and may not reset
properly unless they are mounted with the diaphragm vertical.
Step 3:
For installation of the probe in the piping, drill a hole with a
diameter of 1/4” in the pipe. The length of the probe is
approximately 2” and if necessary, it should be cut back so it is
ush with the inner wall of the pipe.
Attach the probe to the outer pipe wall with the two metal screws.
Step 4:
Connect switch to the probe with the 1/4” metal tubing. Connect
to the 1/8” NPT female pressure port. To measure negative
pressure (below atmospheric pressure), connect the tube from
the probe to low pressure port (marked: “LO”) and leave the
high pressure port (marked: “HI”) open to atmosphere.
Step 5:
Electrical connections to the standard single pole, double throw
snap switch are provided by means of screw terminals marked
“common”, “norm open”, and “norm closed”. The normally open
contacts close and the normally closed contacts open when
pressure increases beyond the set point.
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4. Wiring the Chimney Fan
4.1 General
Danger: Turn off electrical power before servicing. Contact with live electric components can
cause shock or death.
All electrical wiring must be in accordance with requirements of authority having jurisdiction or, in
absence of such requirements, with National Electrical Code NFPA 70 — latest edition. If an external
electrical source is utilized, system must be electrically grounded in accordance with requirements of the
authority having jurisdiction or, in the absence of such requirements, with the National Electrical Code
NFPA 70 — latest edition.
Safety devices, such as a Pressure Differential Switch (fan proving switch) must be wired so they shut
down all appliances connected to the chimney.
Wiring diagrams can be found on the following pages.
Power requirements for the system depends on the fan size. Electrical requirements are:
RS 9 1 x 120 V/60Hz 0.4 Amps
RS 12 1 x 120 V/60Hz 1.2 Amps
RS 14 1 x 120 V/60Hz 1.4 Amps
RS 16 1 x 120 V/60Hz 3.9 Amps
The chimney fans have a split capacitor motor with innitely variable speed.
The fan speed control supplied is rated 1x120V/60 Hz and 5 Amps. It has an adjustable low voltage set
point of min. 65 V +/- 5 V.
Notice: If any of the original wire supplied with the system must be replaced, use
similar wire of the same temperature rating. Otherwise, insulation may melt or degrade,
exposing bare wire.
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4.2 Wiring diagram for solenoid operated gas valve with proven draft protection
Sequence of Operation
4.3 Wiring diagram for burner control circuit with proven draft protection
Sequence of Operation
1. The chimney fan motor is in continuous
operation.
2. Continuous operation keeps the
pressure switch, PS, in the closed
position.
3. The pressure switch, PS, activates the
Solenoid Operated Gas Valve located
between the Pilot Light and the Gas
Valve.
4. Any interruption of the draft causing
the draft to fall below the pressure
switch set point will open the pressure
switch and deactivate the Solenoid
Operated Gas Valve.
1. The thermostat closes the relay RE.
2. The RE relay contacts close activating
the burner control and the chimney fan
motor.
3. Operation will close the pressure
switch, PS, and activate the Solenoid
Operated Valve located between the oil
tank and the burner.
4. Any interruption of the draft causing
the draft to fall below the pressure
switch set point will open the pressure
switch and deactivate the Solenoid
Operated Valve.
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5. System Start-Up
5.1 System testing
Before any adjustments are made to the system, follow these procedures:
• Turn the chimney fan ON and make sure that it is operating. Increase and decrease the speed
of the fan by adjusting the fan speed control to make sure it is operating properly.
• Turn the fan OFF and make sure the pressure switch opens, so the power to the circuit, it controls,
is disconnected.
Notice: Do not blow air into the tube going to the pressure switch as this may damage the
diaphragm.
5.2 Adjusting the Chimney Fan Speed
Start all appliances up. Use the fan speed control to set the speed of the chimney fan so no back
pressure is experienced anywhere in the system. Check the system for ue gas spillage. Mark this
setting on the fan speed control cover.
5.3 Adjusting the pressure switch setting
Remove the snap-on cover from the conduit enclosure by loosening its retaining screw. Turn the
slotted Adjustment Screw clockwise to raise the set point pressure and counter clockwise to lower
the set point.
Set the adjustment to its lowest position. With all appliances operating, reduce the speed of the fan
to the point, where the appliance(s) starts to spill ue gas. Increase the speed of the fan gradually
to the point where there is no more spillage. Raise the switch’s set point so it just opens. Return the
fan speed to the original setting marked on the cover.
The system is now adjusted so ue gas spillage will disconnect the heating system.
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6. Maintenance
6.1 Prior to Cleaning
Remove Buttery Nut or Screw from each Hinge prior to
cleaning.
6.2 Care and cleaning
The EXHAUSTO Chimney Fan is designed for prolonged
use. The fan should be inspected at least once a year when
the chimney is inspected. Creosote and other deposits
should be removed from the fan blades and the bottom of
the motor housing.
The top of the fan is hinged and can be opened in order to
ease the cleaning.
Warning: Do not open the motor housing unless
power to the chimney fan has been disconnected.
Remove Butterfly Nut or
Screw from each Hinge
Remove Butterfly Nut or
Screw from each Hinge
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Notes
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Notes
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1200 Northmeadow Parkway, STE 180 • Roswell, GA 30076
[phone] [phone] • Fax [phone]
[email protected] • us.exhausto.com
Inc.
NorthlineExpress.com
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