Personal Injury, Death Or Substantial Property; Damage - Weil-McLain SlimFit Manual

SlimFit
™
commercial condensing gas
Startup — fill the system
Follow these guidelines to prevent possibility of severe personal injury, death or substantial property damage:
NEVER use automotive or standard glycol antifreeze
•
even glycol made for hydronic systems
freeze-prevention fluids recommended by Weil-McLain for
application in SlimFit Boiler systems.
Thoroughly flush any system that has used glycol
•
before installing the new SlimFit boiler.
• Review the material safety data sheet (MSDS)
fluid used with the boiler owner and leave a copy for reference.
The MSDS contains information on potential hazards and first
aid procedures for exposure or ingestion.
Check antifreeze inhibitor level at least annually
•
Glycol concentration and inhibitor levels may change over
time. Add antifreeze to increase concentration if necessary. Add
inhibitor as needed to bring to acceptable level, using inhibitor
test kit to verify.
• When using freeze protection fluid with automatic fill,
a water meter to monitor water make-up
6. One zone at a time, open the isolation valves. Allow water to run
through the zone, pushing out the air. Run until no noticeable air
flow is present. Close the zone isolation valves and proceed with
the next zone. Follow this procedure until all zones are purged.
7. Close the quick-fill water valve and purge valve and remove the
hose. Open all isolation valves. Watch that system pressure rises
to correct cold-fill pressure.
8. After the system has operated for a while, eliminate any residual
air by using the manual air vents located throughout the system.
9. If purge valves are not installed in system, open manual air vents
in system one at a time, beginning with lowest floor. Close vent
when water squirts out. Repeat with remaining vents.
10. Open automatic air vent (diaphragm-type or bladder-type expan-
sion tank systems only) one turn.
11. Starting on the lowest floor, open air vents one at a time until
water squirts out.
12. Repeat with remaining vents.
13. Refill to correct pressure.
X100 inhibitor must be used
1. The SlimFit boiler must have Sentinel X100 added to the system
to prevent damage to the boilers' heat exchanger. See Replacement
Parts section at the end of this manual for re-ordering information.
2. After filling the system as directed in these instructions, use a
caulking gun to inject the X100 inhibitor concentrate into the
system, or fill with the X100 in its liquid form, following the
instructions on the tube or container.
3. After adding the inhibitor to the system, allow time for the water to
circulate and mix. Then check the inhibitor level. Add additional
inhibitor if necessary.
88
-
fired water boiler
(continued)
FREEZE PROTECTIOn
, tection fluid may leak before the water begins to leak, causing
. Use only concentration to drop, reducing the freeze protection level.
• DO NOT exceed 50% antifreeze by volume
moves more sluggishly than water and can interfere with heat
transfer. At antifreeze concentrations higher than 50%, sludge
can develop in the boiler, potentially causing damage to the
heat exchanger.
for the
Clean the system before filling
•
the system thoroughly before filling with antifreeze. Sludge,
iron oxide deposits and other sediment in the system inhibit
flow and can cause rapid breakdown of inhibitors.
.
• Use only antifreeze recommended by Weil-McLain.
install
. Freeze pro-
4. See separate instructions or Weil-McLain website for suggested
guidelines to determine how much inhibitor to use.
Check/verify water chemistry
1. The system may have residual substances that could affect water
chemistry.
2. After the system has been filled and leak tested, verify water pH
and chlorine concentrations are acceptable.
3. Verify antifreeze concentration, when used.
4. Follow the instructions on the Sentinel test kit to sample the
system water and verify inhibitor concentration.
Check inhibitor and antifreeze
concentrations annually
1. Test the pH of a sample of system water at least annually.
a. The pH of the water mixture must be between 7.0 and 8.5.
b. Or use the Sentinel inhibitor test kit to check concentration.
2. If pH is outside this range (or inhibitor test kit indicates low level),
the inhibitor level may not be sufficient to prevent corrosion.
3. Test antifreeze concentration.
4. Check inhibitor level after adjustments are made.
— Boiler Manual
(when used)
Weil-McLain provides information for application of
the antifreeze products listed in this document only
for use in Weil-McLain SlimFit boilers. Do not apply
these products or instructions for other applications.
Local codes may require a backflow preventer or actual
disconnection from city water supply.
Test antifreeze concentration at least annually. If
concentration is low, add antifreeze or drain system
and refill with correct mixture. Follow instructions on
page 87 to determine amount of antifreeze needed.
Part number 550-100-116/0713
. Antifreeze
. Always drain and flush