Sigma Force Flow Heaters Use And Maintenance Manual SFF IOM Cover

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Force Flow Heaters
Installation and Operation Manual

MANUFACTURERS
OF HYDRONIC

HEATING
PRODUCTS
www.sigmaproducts.com Tel: (905) 453-0446 Fax: (905) 453-0675
Rev 3

Force Flow Heaters

Installation & Operation Manual

GENERAL NOTES

ADDITIONAL WARNINGS

1. Examine entire unit for damages in
shipping upon receipt of the unit. Any
shortages or damage should be noted on
the carrier's delivery document. After
inspection issue a purchase order for
necessary parts or contact the factory for
repair or replacement. Please do not return
equipment without the prior authorization of
the factory.

Familiarization with and adherence to
national electrical code and local/state codes
is highly recommended.

2. Installation and maintenance should only
be performed by qualified personnel and in
accordance with local codes and regulation.
3. Operate at maximum entering water
temperature of 200°F (93°C).
4. For units not immediately installed storage
should occur in a dry location with the motor
protected from moisture, dust, corrosion and
damage. If storing units for more than one
year contact the motor manufacturer for
further protection instructions.
5. Caution; sharp edges, coil surface and
rotating fan are a potential hazard.

1. Avoid contact with energized circuits
and/or rotating parts. Contact with operating
voltage may be fatal.
2. Lifting of this unit should be done with
care and in accordance with prescribed
procedures.
3. Insure the unit is electrically grounded in
accordance with code requirements.
4. Ensure unit is properly secured to prevent
access by children or unauthorized persons
in order to avoid possible accidents.
5. Avoid contact with capacitors until safe
discharge procedures have been completed.
6. Do not under any circumstance restrict
the motor ventilation.
7. If the unit has been subjected to storage
in a damp environment dry out thoroughly
before operating.

FIGURE 1 MOTOR WIRING DIAGRAM
WARNING:
Failure to follow all safety
information can result in
serious personal injury or
death. Before servicing,
disconnect all power. This
motor must be connected to
the electrical service ground
in accordance with local or
national code. Consult a
qualified electrician with any
questions.

www.sigmaproducts.com Tel: (905) 453-0446 Fax: (905) 453-0675
Rev 3

1

Force Flow Heaters

Installation & Operation Manual

GENERAL INSTALLATION

MAINTENANCE

All units are shipped fully assembled. If the
unit is a fully or semi-recessed model type
then a wall seal trim will be included and
must be installed as per the provided
instructions.

Motors. Motors are a permanent split
capacitor type fitted with self lubricating
sleeve bearings. In order to extend motor life
the bearing should be "recharged" with an
annual lubrication. Use an SAE 10 non
detergent oil applied only in the oiling holes
provided.

Remove front panel, line up roughed in
piping and position the unit in the desired
wall or ceiling location.
Attach unit to wall or ceiling using the
provided holes in the back panel of the unit.
Piping should always be installed and
connected using good practice and in
accordance with applicable codes.
Wiring should be completed in accordance
with applicable codes. All models are
furnished with a fan control box in the
desired location on the unit. If the speed or
temperature control are to be remote
mounted the junction box must be supplied
by an other.
Once the unit is completely installed a test
run should be performed. If operational
difficulties are experienced, recheck all
wiring connections and power source.

Coils. Coils are to be kept clean in order
for proper heat transfer to exist. The
conditions of each operating environment
will change the frequency of cleaning. The
coils can be vacuumed or alternately use the
following methods. Brush the fins on the air
intake side and then place a bag or damp
cloth over the unit discharge. Activate the
unit and the dirt will be trapped in the bag or
cloth. The coil can also be cleaned with high
pressure air which should be blown on the
outlet side of the coil (blowing air on the inlet
will force dirt deeper into the coil).
Blowers. Blowers can be cleaned using
high pressure air.
Filters.
Filters should be kept clean to
ensure the proper circulation of air volume
through the unit. The frequency of the
cleaning varies and is dependant upon the
operating environment. As a guide they
should be washed in mild detergent or blown
clean with compressed air every 3 months.

www.sigmaproducts.com Tel: (905) 453-0446 Fax: (905) 453-0675
Rev 3

2

Force Flow Heaters

Installation & Operation Manual

UNIVERSAL FORCE FLOW COLLARS
A standard trim which is used on any semirecessed or fully recessed model. Mounted
on sight to allow for infinite mounting depth
adjustment. Simply mark the depth location of
the desired reveal minus 1/2" for the trim
thickness and fasten the side bars centered
with the front edge on the line. (Figure 4
shows sides being mounted to a fully
recessed model wall mount)
The top and bottom bars have pocketed ends
to provide quick and easy alignment. The
protruding ends of the side bar (Figure 2 & 3)
fit snugly in the pockets and provides the
proper alignment for the top/bottom bar to be
fastened to the cabinet. For floor mount units
the bottom bar is not used and the sides are
fastened even with the bottom of the unit and
do not protrude. The collars have been
designed for this so no cutting is required on
the side bars. The top is mounted normally
and the extra protrusion of the side bar does
not affect the mounting.

FIGURE 2
SIDES AND TOP
ALIGNED AND
READY TO BE
FITTED

FIGURE 3
ASSEMBLED SIDE
AND TOP

FIGURE 4
ASSEMBLY VIEW FOR
FULLY RECESSED
UNIT

www.sigmaproducts.com Tel: (905) 453-0446 Fax: (905) 453-0675
Rev 3

3



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