TriangleTube Prestige Solo 250 User manual

Prestige SOLO 155/175/250
ACVMax Boilers
Natural to Propane Instructions
1
Failure to follow instructions below can
result in substantial property damage, seri-
ous injury, or death.
• Instructions are for a qualified installer
or service technician.
• ead all instructions before proceeding.
• Follow instructions in proper order.
For your safety, turn off electrical power
supply at service panel before proceeding to
avoid possible electrical shock hazard.
Failure to do so can result in substantial
property damage, serious injury, or death.
Upon completion of the conversion from
Natural Gas (NG) to Propane (LP), affix the
new rating label included in the kit to the
unit adjacent to the existing rating label. DO
NOT affix the new label over the existing rat-
ing label. Add propane conversion labeling to
the gas valve.
These instructions cover NG to LP conversion
for ACVMax controlled Prestige Solo 155, 175
& 250 boilers only. Each kit is supplied with
one orifice suitable for use with that particu-
lar boiler model.
NOTICE
NOTICE
WARNING
WARNING
Indicates a potentially hazardous situation
which, if ignored, can result in substantial
property damage, serious injury, or death.
Indicates special instructions on installa-
tion, operation or maintenance, which are
important to equipment but not related to
personal injury hazards.
NOTICE
WARNING
Applicable Kit Part Number:
- PARKIT64 (PA 155)
- PARKIT65 (PA 175)
- PARKIT66 (PA 250)
Kit Includes:
- Rating Label
- Conversion Label
- (1) Propane Gas Orifice
- T-25 Torx Wrench
ecommended Tools
- Adjustable Wrenches
- Phillips-Head Screwdriver
- Flat-blade Screwdriver
- Calibrated Combustion Analyzer

Prestige SOLO 155/175/250 - ACVMax Boilers
Natural to Propane Instructions
2
1.0 Installation of the Propane Orifice
1. Turn off the electrical power supply to the boiler.
2. Close the manual gas shut off valve to the unit.
3. Remove the front panel of the Prestige by
removing the screws along the bottom edge of
the unit. Pull the bottom of the panel forward
and then lift up to remove the front panel from
the unit.
4. Remove the air inlet elbow from the venturi
using a twist and pull motion.
5. Disconnect the gas supply piping inside the
Prestige enclosure at the brass union located
just below the gas valve.
6. Remove Molex plug from gas valve.
7. Remove the two T-25 Torx head screws used to
mount the venturi / gas valve assembly to the blow-
er. Do not discard the screws. Dismount the venturi
/ gas valve assembly from the blower. See Fig. 1.
There is a gasket between the venturi and the
blower housing. This gasket must be reinstalled
when the venturi is mounted back onto the blow-
er. Use care not to damage the gasket.
8. Using a T-25 Torx wrench remove the three
mounting screws attaching the gas valve to the
venturi. ote the orientation of the gas valve to
the venturi for reference later when the gas
valve is reassembled to the venturi.
9. Install the appropriate brass propane orifice
from Table 1 in the gasket between the gas
valve and the venturi. The black rubber gasket
must remain attached to the gas valve. See Fig.
2.
NOTICE
1
3
3
2
1. Gas Valve
2. Venturi
3. T-25 Torx Head Screws Attaching Gas
Valve/Venturi to Blower Housing
Fig. 1: Prestige Burner Assembly
32
1
Fig. 2: Venturi/Gas Valve Assembly
1. T-25 Torx Head Screws Attaching Venturi to
Gas Valve
2. Brass Orifice
3. Rubber Gasket

Prestige SOLO 155/175/250 - ACVMax Boilers
Natural to Propane Instructions
3
Failure to retain the rubber gasket on the gas
valve will cause an improper seal between the
gas valve and the venturi resulting in a potential
risk of a gas leak. Any potential gas leakage can
result in substantial property damage, serious
injury, or death.
Ensure the proper orifice for the model is installed
per Table 1. Failure to comply will affect input rate
and combustion of the boiler which can result in
substantial property damage, serious injury, or
death.
10. Reassemble the gas valve onto the venturi using
the three T-25 Torx head screws. Ensure the gas
valve is orientated with the venturi correctly.
11. With the venturi / blower gasket in place,
reassemble the venturi / gas valve assembly to
the blower housing using the two T-25 Torx
head screws.
For the reassembly process do not use adhesive
on the venturi / blower gasket.
Use care in the reassembly of the venturi / gas
valve to the blower housing not to cross thread
the mounting screws. Support the weight of the
venturi / gas valve assembly when threading the
mounting screws.
12. Reconnect Molex plug to the gas valve electri-
cal connection.
13. Reconnect the brass gas piping union connec-
tion and open the manual gas shut off valve.
Before placing the Prestige boiler back into
operation check and test all gas connections for
leaks. Repair leaks if found.
Do not check for gas leaks with an open flame.
Use a bubble test. Failure to check for gas leaks
can result in substantial property damage, seri-
ous injury, or death.
14. Reattach the air inlet elbow to the venturi.
15. Replace the front jacket panel and secure with
screws.
16. Turn on the electrical power supply to the
Prestige boiler and return the unit back to service.
NOTICE
NOTICE
WARNING
WARNING
WARNING
Table 1: Propane Gas Orifice
Model Orifice Size
Solo 155 0.2047 inch (5.2mm)
Solo 175 0.232 inch (5.9 mm)
Solo 250 0.250 inch (6.3 mm)

Prestige SOLO 155/175/250 - ACVMax Boilers
Natural to Propane Instructions
4
2.0 Combustion Test and Adjustments
1. The installer MUST perform a complete com-
bustion check to ensure the following combus-
tion levels in Table 2 are met at high and low
input firing rates and the burner is operating at
optimum conditions.
Table 2: ecommended Propane Combustion Settings
The combustion testing and adjustments
must be performed by a qualified installer,
service agency or the gas supplier. All com-
bustion measurements must be performed
with calibrated equipment to ensure proper
readings and accuracy.
Failure to perform a complete combustion
test at both high and low input rates may
result in incomplete combustion and the pro-
duction of carbon monoxide, which can
result in substantial property damage, seri-
ous injury, or death.
The combustion levels should be measured at
high firing rate. If the combustion levels are
not within the range given in Table 2 for Low
Fire after adjusting High Fire, shut the boiler
down and contact Triangle Tube Technical
Support Department. Failure to comply
with this requirement can result in substan-
tial property damage, serious injury, or
death.
The gas valve outlet pressure is factory set to the
correct value and does not require field adjust-
ment or measurement. Measurement or adjust-
ments could result in damage to the gas valve
and can result in substantial property damage,
serious injury, or death.
2. Press the round I STALLER button. See Fig.
3.
3. Enter the installer access code “054” by using
the LEFT and IGHT buttons to select a digit
and the UP and DOWN buttons to change the
digit. Press the OK button to enter the access
code.
4. Press the IGHT button to highlight the
Manual Operation icon then press the OK
button.
5. Press the OK button while the FA icon is
highlighted to manually fire the burner and
power the CH1 circulator (see Fig. 4)
WARNING
WARNING
WARNING
WARNING
DHW Demand
Target = 186°F
Installer Button
Fig. 3: ACVMax Navigation Buttons
Manual Operation
Released
O
O
O
CH1
FAN
DHW
CH2
Fig. 4: ACVMax Manual Operation
High Fire
CO2Range 10.7 to 12.0%
CO2Target 11.0%
O2Range 2.7 to 4.7%
O2Target 4.2%
Low Fire
CO2Range 0.5 to 0.6%
Lower than H.F. CO2
O2Range 0.8 to 0. %
Higher than H.F. O2
CO Max 150 ppm

An adequate CH load must be present to dis-
sipate the heat generated during the combus-
tion test. If an adequate CH load is not avail-
able an indirect water heater can be used to
dissipate the heat by creating a DHW call
which will enable the DHW circulator.
6. Press the IGHT button to adjust the firing rate
to 100% (high fire). Hold down the IGHT
button to rapidly increase the firing rate.
7. If the combustion levels during high fire are
outside the recommended combustion settings
adjust the THROTTLE SCREW (see Fig. 5)
using a flat-blade screwdriver as follows:
Counter-clockwise adjustment of the TH OT-
TLE SC EW at High Fire (100% firing rate):
O2decreases and CO2increases
Clockwise adjustment of the TH OTTLE
SC EW at High Fire (100% firing rate):
O2increases and CO2decreases
8. Once the combustion level is set at high fire,
manually place the boiler into low fire mode by
pressing the LEFT button to adjust firing rate
down to 1% (low fire) to verify low fire com-
bustion settings.
9. If the combustion levels (O2& CO2) during
low fire are outside the recommended combus-
tion settings in Table 2, contact Triangle Tube
Technical Support Department for assistance.
10. Press the OK button while the fan icon is high-
lighted to shutdown the burner.
11. Press the LEFT or IGHT button to highlight
the home screen icon to exit the service
mode.
NOTICE
Prestige SOLO 155/175/250 - ACVMax Boilers
Natural to Propane Instructions
5
1
Fig. 5: Combustion Adjustment - Prestige Burner
1. Throttle Screw
2016-1 Prestige ACVMax 250 G to LP
Revised Date: 2/26/2016