Part number 550-100-168/0516
84
Freeze protection (when used)
Follow these guidelines to prevent pos-
sibility of severe personal injury, death
or substantial property damage:
.%6%2USEAUTOMOTIVEORSTANDARD
GLYCOLANTIFREEZE
,
EVENGLYCOLMADE
FOR HYDRONIC SYSTEMS
. Use only
freeze-prevention fluids recommended
by Weil-McLain for application in Slim-
Fit Boiler systems.
4HOROUGHLYmUSHANYSYSTEMTHAT
HASUSEDGLYCOL
before installing the
new SlimFit boiler.
2EVIEW THE MATERIAL SAFETY DATA
SHEET-3$3
for the fluid used with
the boiler owner and leave a copy for
reference. The MSDS contains informa-
tion on potential hazards and first aid
procedures for exposure or ingestion.
#HECK ANTIFREEZE INHIBITOR LEVEL AT
LEAST ANNUALLY
. Glycol concentration
and inhibitor levels may change over
time. Add antifreeze to increase con-
centration 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,
INSTALLAWATERMETERTO
MONITORWATERMAKEUP
. Freeze pro-
tection fluid may leak before the water
begins to leak, causing concentration
to drop, reducing the freeze protection
level.
$/ ./4 EXCEED ANTIFREEZE
BY VOLUME
. Antifreeze moves more
sluggishly than water and can interfere
with heat transfer. At antifreeze concen-
trations higher than 50%, sludge can
develop in the boiler, potentially causing
damage to the heat exchanger.
#LEAN THE SYSTEM BEFORE FILLING
.
Always drain and flush 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 inhibi-
tors.
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 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.
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 expansion
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.
Use inhibitor supplied with boiler
1. The SlimFit boiler is shipped with Sentinel X100 inhibitor and Sen-
tinel inhibitor test kit. See Repair Parts 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 into the system, following the instruc-
tions on the tube.
3. Inject all of the inhibitor supplied with the boiler. Allow time for the
water to circulate and mix. Then check the inhibitor level. Add addi-
tional inhibitor if necessary.
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. The pH of
the water mixture must be between 7.0 and 8.5. (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 concentra-
tion is low, add antifreeze or drain system and refill with
correct mixture. Follow instructions on page 83 to determine
amount of antifreeze needed.
4. Check inhibitor level after adjustments are made.
SlimFit
®
Series 3
COMMERCIAL
CONDENSING
GAS
-
FIRED
WATER
BOILER
—
Boiler Manual
Startup — fill the system
(continued)
Содержание 550 MBH
Страница 126: ...Part number 550 100 168 0516 126 SlimFit Series 3 COMMERCIAL CONDENSING GAS FIRED WATER BOILER Boiler Manual Notes ...
Страница 127: ...Part number 550 100 168 0516 127 SlimFit Series 3 COMMERCIAL CONDENSING GAS FIRED WATER BOILER Boiler Manual Notes ...
Страница 128: ...GAS FIRED WATER BOILER Boiler Manual SlimFit Series 3 COMMERCIAL CONDENSING GAS FIRED WATER BOILER Boiler Manual ...