Sigma Water Heater Force Flow Heaters User Manual

Force Flow Heaters  
Installation and Operation Manual  
ANUFACTURERS  
M
OF YDRONIC  
H
HEATING  
PRODUCTS  
Rev 3  
 
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.  
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).  
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.  
Blowers. Blowers can be cleaned using  
high pressure air.  
Once the unit is completely installed a test  
run should be performed. If operational  
difficulties are experienced, recheck all  
wiring connections and power source.  
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.  
2
Rev 3  
 
Force Flow Heaters  
Installation & Operation Manual  
FIGURE 2  
UNIVERSAL FORCE FLOW COLLARS  
SIDES AND TOP  
A standard trim which is used on any semi-  
recessed 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)  
ALIGNED AND  
READY TO BE  
FITTED  
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 3  
ASSEMBLED SIDE  
AND TOP  
FIGURE 4  
SSEMBLY IEW OR  
A
V
F
FULLY RECESSED  
UNIT  
3
Rev 3  
 

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