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110327-04 - 1/22
ALTA
Combi Installation, Operating & Service Instructions
15
Start-Up and Checkout
Heating System Cleaning and Treatment
CAUTION
Component Damage.
Proper flushing, cleaning, and water side
maintenance is highly recommended to protect
boiler heat exchanger. Scaling and sediment
build up may not be covered under warranty.
1. Prior to fill, flush entire heating system to remove
sediment, flux, and traces of boiler additives.
2. Clean with approved cleaners such as the
following or its equivalent:
•
Fernox Cleaner F3 (for new heating systems)
•
Sentinel x300 System cleaner (for new heating
systems)
•
Sentinel X400 System Restorer (for old closed
loop hydronic systems)
Refer to instructions supplied with cleaner for
proper dosage and use.
NOTICE
: Cleaning system prior to removing old
boiler or by isolating new boiler from system while
cleaning will yield best results.
3. After system has been cleaned, recommend
using approved inhibitors such as the following or
its equivalent:
• Fernox F1 Protector
• Sentinel X100 Inhibitor
Refer to instruction supplied with inhibitor for
proper dosage and use.
CAUTION
Component Damage.
Avoid use of petroleum based boiler additives
and ester-based oils/lubricants. These could
attack seals in both boiler and system which
could result in property damage.
!
Freeze Protection
If freeze protection is required see Appendix B for
additional information.
Fill Water System
WARNING
Burn Hazard.
Never exceed maximum allowable working
pressure on heat exchanger ASME plate (50
psig [345 kPa]). A 30 psig (207 kPa) safety
relief valve is included with this boiler.
1. Fill system ensuring water quality meets
requirements of this manual.
2. Pressurize system to at least 12 psig (83 kPa) at
boiler. Pressure will vary with each application.
3. Verify air pressure in expansion tank is equal to
system pressure.
!
NOTICE
: Minimize introduction of make-up water,
dissolved oxygen, and contaminants into boiler by
following installation guidelines outlined in Appendix
B: Water Quality and Boiler Additives.
!
Following appropriate water chemistry guidelines will
help extend the life of appliance by reducing effects
of lime scale buildup and corrosion, which are not
covered by warranty.
Fill Water Quality
NOTICE
: Make sure system is filled with water meeting
the following criteria:
•
Hardness less than 7 grains/gallon.
•
pH between 6.5 and 9.5 (for systems containing
aluminum components, between 6.5 and 8.5)
•
Chlorides less than 200 PPM. If fill water is
drawn from a system containing a water softener,
test a sample of the water to confirm that this
criteria is met.
