
EXCELLENCE IN HEATING
AND HOT WATER SYSTEMS
an ACV company
HEATMASTER
TC SERIES
HIGH EFFICIENCY CONDENSING
BOILER & DOMESTIC WATER HEATER

HOW IT WORKS
HEATMASTER TC
Did you know? The HeatMaster® TC is the only storage
combination boiler in the world to fully condense
during both hot water and space heating modes.
HEATING MODE
The heating system return
enters the low temperature
total condensing tank, which
allows the HeatMaster® TC
to operate in condensing
mode. The upper tank of the
HeatMaster TC is kept at a
consistently high temperature
to satisfy any heating demand.
HOT WATER MODE
With the upper tank maintained
at high temperature, the
HeatMaster® TC is always
ready to supply hot water on
demand. The cold water enters
through the dual coil in the
total condensing tank and is
pre-heated before entering
the hot water tank. The low
temperature in the total
condensing tank results in
continuous condensation of the
flue gases in hot water mode.
HEATING &
HOT WATER MODE
Once up to temperature, the
HeatMaster® TC is capable of
producing heat and hot water
simultaneously.

HEATMASTER TC
• 95% AFUE
• Exclusive “Tank-in-Tank” Technology
• Total Condensing in DHW & Space Heating
• Satisfies High Space Heating & DHW Demands
• 60 Second EZ Set-up
• Intelligent Troubleshooting
• Easy Serviceability
EXCELLENCE IN HEATING
AND HOT WATER SYSTEMS
an ACV company
1.
Universal Vent & Air Connections
2.
Proven Modulating Premix Burner
3.
Combustion Chamber
4.
Stainless Steel Fire Tubes
5.
Exclusive “Tank-in-Tank” Heat Exchanger
6.
Low Temperature Total Condensing Tank
7.
Polypropylene Flue & Condensate Pan
8.
Internal Circulator to Equalize Internal Temperature
9.
Easy Access Wire Terminal Strip
10.
ACVMax Control
11.
ACVMax Display
12.
Polyurethane Foam Insulation
TYPICAL NON CONDENSING COMBINATION BOILER
HEATING HOT WATER
TYPICAL CONDENSING COMBINATION BOILER
HEATING HOT WATER
HEATMASTER TC TOTAL CONDENSING COMBINATION BOILER
HEATING HOT WATER
10 YEAR
HEAT
EXCHANGER
WARRANTY
5 YEAR
LIMITED
PARTS
WARRANTY
HIGH EFFICIENCY LOW EFFICIENCY

SPECIFICATIONS & FEATURES
HeatMaster TC
MODEL HM240TC HM399TC
Input Modulation (MBH) 50 to 240 95 to 399
AFUE 95% 95%**
Turndown Ratio 4.8 : 1 4.2 : 1
Boiler Water Volume (Gal.) 33 33
Fuel NG & LP NG & LP
Continuous flow 70 F Temp. Rise* (GPM) 370 620
Choose from 6 standard heating applications
to set up the boiler in 60 seconds or less.
• FINNED TUBE BASEBOARD
• CAST IRON BASEBOARD
• RADIATORS
• HIGH MASS RADIANT
• LOW MASS RADIANT
• FANCOIL
1st Hour Rating* (GPM) 410 660
Peak Flow (Gal/10 min) 110 155
Domestic Connections 1” 1”
DHW Volume (Gal.) 50 50
Supply/Return Connections 1-1/2” 1-1/2”
Gas Connections 3/4” 3/4”
Vent/Air Diameter 4” 4”
Cabinet Height (Inch) 85- 1/2” 85- 1/2”
Cabinet Width (Inch) 27- 1/4” 27- 1/4”
Cabinet Depth (Inch) 30” 30”
Weight (Lbs) 800 800
* Domestic performance based on average temperature of 120°F at
mixing valve outlet and 50°F inlet.
**Thermal Efficiency
ACVMAX, USER-FRIENDLY CONTROL SYSTEM
Intelligent Troubleshooting
- Describes lockouts in plain english & suggests solutions
- Records sensor readings for 24 hours
Multiple Zone Control
- Accepts 2 space heating calls with independent outdoor
reset curves
- Simultaneously heat dual temperature heating systems
with built-in mixing valve control
- Manage up to 2 space heating zones without an external
zone control panel
Multiple Circulator Control
- Presets allow for quick configuration of 3 circulator outputs
- Circulator outputs fully configurable for custom applications
CONTACT
If you have any questions or
comments regarding our products
and services, we’d love to hear
from you! Please contact us through
one of the options listed below.
Corporate office
T 1-856-228-8881
E info.na@acv.com
W triangletube.com
Triangle Tube reserves the right to make product changes or improvements at
any time without notice. 2017-7 HeatMaster Series Literature- 9/10/2017