First Co FWA-HW - Manual (Page 3)

OPERATION AND
MAINTENANCE
Pre-start Check
• Check that supply voltage matches
nameplate data.
• Ensure that the unit is properly
grounded.
• With power off, check blower wheel
set screw for tightness and ensure
that the blower wheel rotates freely
and quietly. Remove the motor
blower shipping brace on the 60MBQ
blower assembly.
• Check that the water coil, valves
and piping have been leak checked
and insulated as required.
• Ensure that all air has been vented
from the hot water coil.
NOTE: It may require purging several
gallons of water so have a means of
discarding the water.
• Install all panels.
NOTE: The blower door must be in
place for the unit to operate due to the
door safety switch.
• Install any filters which may have
been removed during the installation
process.
****** WARNING ******
• Always wear eye protection.
• When fan coil is operating,
some components are operating
at high speeds. Personal injury
can result from touching these
items with any object
• All electrical and service
access panels must be returned
and secured in their proper
place.
• Clear surrounding area of all
tools, equipment and debris.
• Check the entire unit to
ensure it's cleanliness.
****** WARNING ******
The manufacturer does NOT
WARRANT equipment sub-
jected to abuse. Metal chips,
dust, drywall tape, paint over
spray, etc. can void warranties
and liability for equipment
failure, personal injury and
property damage.
Start-up and Maintenance
Before start-up, all of the compo-
nents should be given a thorough
check. Optimal operation of this
equipment requires cleanliness. Of-
ten after installlation of this equip-
ment additional construction activi-
ties occur. Care must be taken to
protect the equipment from debris
during these construction phases.
Preventative Maintenance
To achieve maximum performance
and service life of each piece of equip-
ment a formal schedule of regular
maintenance should be established
and maintained. The equipment
should be checked annually by a
licenced contractor.
****** WARNING ******
To prevent pump damage,
the fan coil unit should not be
energized for heating until the
hot water coil and all water
lines have been purged of air.
****** WARNING ******
Hot water can cause scalding.
A hot water mixing valve can
be applied to the system to
temper domestic water draw.
HEATING CYCLE
START - UP
1) Fill the water heater. Open a hot
water faucet while filling the water
heater to vent the air. When the
tank is full and all the air is purged,
close the faucet.
Fan
The fan should be inspected and
cleaned, in conjunction with mainte-
nance of the motor and bearings. It is
important to keep the wheel clean in
order to avoid imbalance and vibra-
tion.
Motor
Check motor connections to en-
sure that they are secure and made in
accordance with the wiring diagram.
The blower motor should be
cleaned annually.
Coil
Any dust or other contaminants
which accumulate on the heat trans-
fer surfaces interferes with the air flow
and impairs heat transfer. The coil
should be checked and cleaned an-
nually by a licenced contractor.
Filter
The air filter should be cleaned or re-
placed every 30 days or more frequently
if severe conditions exist.
Always re-
place the filter with the same type as
originally furnished.
2) Ignite the water heater and set the
thermostat to 140 degrees.
3) Purge the air handler's hot water
coil and lines.
NOTE: It may require purging several
gallons of water so either have a
bucket available or a means of dis-
carding the water.
Close valve number 1 and open
valve number 2. (See figure 1 )
Next, open the air bleed valve.
When all of the air is purged from
the lines close valve number 2 and
open valve number 1. After all the
air is purged from the coil and
lines, open both valve number 1
and 2 and close the air bleed valve.
**MAINTENANCE UPDATES**
For a current copy of the
Maintenance Program log on
to www.firstco.com and
look under "Product Informa-
tion"