Note: Propane conversion venturis have an additional yellow label to identify use for propane
42
CHAPTER 7
Table 3 - Propane Conversion Venturis
Model Venturi Diameter Top injector Bottom Injector Label Colour Part No.
110 Solo 22mm 2.90mm 2.65mm Black INSRKIT08
155 Solo 24mm 3.15mm 2.95mm Black INSRKIT10
199 Solo TBC TBC TBC TBC INSRKIT12
155 Combi 24mm 3.15mm 2.95mm Black INSRKIT10
199 Combi TBC TBC TBC TBC INSRKIT12
CHAPTER 7 - GAS PIPING
7.3. Propane Gas
7.3.1 Pipe Sizing
• The unit was shipped with a propane con-
version 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 con-
version kit is missing, please contact Tri-
angle 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 gas valve for
propane conversion label. If there is a
conflict or doubt on the burner set up, re
-
move the gas valve and check for the pro-
pane orifice, see Fig. 17 on page 31
and
Fig. 27 on page 43 and Fig. 28 on page 44.
• 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 dan-
gerious carbon monoxide levels which
could cause serious injury, or death.
Contact the local propane gas supplier for recommend-
ed 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 pres-
sure port:
• Maximum 13”w.c. at ow or no ow conditions
to the burner
• Minimum 8”w.c. during ow conditions to the
burner. Must be veried 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 facto-
ry-set for the correct outlet pressure. This set-
ting 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 dam-
age, serious injury, or death.
•
The propane gas venturi assembly must never
be modified or replaced with a different assem-
bly. See the below chart for the full specifica-
tion. Failure to use the required propane gas
venturi assembly can result in substantial prop-
erty damage, serious injury or death.
WARNING
WARNING