Personal Injury, Death Or Substantial Property - Weil-McLain SVF 1500 Manual

SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler — Boiler Manual
Startup — fill the system
Follow these guidelines to prevent possibility of severe personal injury, death or substantial property damage:
freeze-prevention fluids recommended by Weil-McLain for
TM
application in SVF
Boiler systems.
before installing the new SVF
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.
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
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.
4. See separate instructions or Weil-McLain website for suggested
guidelines to determine how much inhibitor to use.
Purge air from water system
1. Connect a hose to the purge valve (see purge/drain valves shown
in piping diagrams beginning on page 16). Route the hose to an
area where water can drain and be seen.
2. Close the boiler or system isolation valve between the purge valve
and fill connection to the system.
3. Close zone isolation valves.
4. Open quick-fill valve on cold water make-up line.
5. Open purge valve.
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.
86
FREEZE PROTECTION
. Use only
TM
boiler.
for the
install
. Freeze pro-
(continued)
(when used)
, tection fluid may leak before the water begins to leak, causing
concentration to drop, reducing the freeze protection level.
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.
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.
Weil-McLain provides information for application of
the antifreeze products listed in this document only for
use in Weil-McLain SVF
products or instructions for other applications. Local
codes may require a backflow preventer or actual discon-
nection from city water supply.
12. Repeat with remaining vents.
13. Refill to correct pressure.
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 chloride 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.
Test antifreeze concentration at least annually. If
concentration is low, add antifreeze or drain system
and refill with correct mixture. Follow instructions on
page 85 to determine amount of antifreeze needed.
4. Check inhibitor level after adjustments are made.
. Antifreeze
. Always drain and flush
TM
boilers. Do not apply these
Part number 550-100-250/0819