Note: Propane conversion venturis have an additional yellow label to identify use for propane
39
CHAPTER
7
Table 3 - Propane Conversion Venturis
Model
Venturi Diameter Bottom Injector
Top injector
Label Colour
Part No.
110 Solo
22mm
LP Ø2.80 mm
LP Ø2.90 mm
Black
INSRKIT08
155 Solo
24mm
LP Ø3.00 mm
LP Ø3.30 mm
Black
INSRKIT10
199 Solo
26mm
LP Ø3.30 mm
LP Ø3.45 mm
Black
INSRKIT12
155 Combi
24mm
LP Ø3.00 mm
LP Ø3.30 mm
Black
INSRKIT10
199 Combi
26mm
LP Ø3.30 mm
LP Ø3.45 mm
Black
INSRKIT12
CHAPTER 7 - GAS PIPING
7.3. Propane Gas
7.3.1 Pipe Sizing
•
The unit was shipped with a propane
conversion kit which is located on the top
of the unit in the instructions packet. This
kit includes all the necessary parts and
instruction to perform the conversion from
natural to propane gas. If this conversion
kit is missing, please contact Triangle Tube
Technical Support for missing kit before
installing unit.
•
Prior to start up, ensure the unit is set to fire
propane. Check the rating label for the type of
fuel. Check the venturi for propane conversion
label. If there is a conflict or doubt on the
burner configuration, remove the venturi and
check for proper propane gas orifice sizing on
venturi labeling. Refer to Tables 1 and 3 below.
See
Fig. 24 and 25 on page 40 and
Fig. 26 on page
41
for venturi location. Refer to Propane
Conversion Instructions for proper removal and
replacement of the venturi.
•
Failure to ensure proper burner setup can
result in substantial property damage,
serious injury, or death.
•
Operating a natural gas INSTINCT boiler on
propane will create excessive and dangerious
carbon monoxide levels which could cause
serious injury, or death.
Contact the local propane gas supplier for recommended
sizing of piping, tanks and 100% lockup gas regulator.
WARNING
7.3.2 Supply Pressure Requirements
1. Adjust the propane supply regulator provided by
the gas supplier for 13”w.c. maximum pressure
2. Pressure required at the gas valve inlet supply
pressure port:
• Maximum 13”w.c. at flow or no flow conditions
to the burner
• Minimum 8”w.c. during flow conditions to the
burner. Must be verified during start up and
with all other gas appliances operating within
the building.
DO NOT adjust or attempt to measure gas valve
outlet pressure. The gas valve is factory-set for
the correct outlet pressure. This setting is suitable
for natural gas and propane and requires no field
adjustment. Attempts by the installer to adjust or
measure the gas valve outlet pressure can result in
damage to the valve, causing substantial property
damage, serious injury, or death.
•
The propane gas venturi assembly must never be
modified or replaced with a different assembly. See
the below chart for the full specification. Failure to
use the required propane gas venturi assembly can
result in substantial property damage, serious injury
or death.
WARNING
WARNING
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