TriangleTube SMART 120 User Manual

Revision date : 06/25/19
Technical Specifications
Installation & Maintenance Manual
SMART
Indirect Fired Water Heater
30 - 40 - 50 - 60 - 80 - 100 - 120
Before proceeding with installation and operation, read entire manual carefully. Failure to do so
can cause property damage or personal injury.
• When receiving the SMART unit, any claims for damage or shortage in shipment must be filed immediately against the
transportation company by the consignee.
• Customer must register unit within sixty (60) days of installation in order to gain warranty coverage. See Warranty Card for
details.
• Leave all documentation received with appliance with the owner for future reference.
• Installation and service should only be performed by a qualified installer or service technician.
• Installations and service should be performed by a licensed plumber or gas fitter in the Commonwealth of Massachusetts.
NOTICE
WARNING
2010-49 Smart Manual

TriangleTube SMART 120 Specifications

General

Category	Water Heater
Manufacturer	TriangleTube
Model	SMART 120
Material	Stainless Steel
Minimum Water Flow Rate	0.5 GPM
Water Connections	3/4" NPT
Gas Connections	1/2" NPT
Fuel Type	Natural Gas / Propane
Input BTU/h	120, 000 BTU/hr
Vent Size	2" / 3"
Type	Condensing Tankless Water Heater

Summary

Chapter 2: Installation - Piping

2.1. Temperature & Pressure (T&P) Relief Valve

Requirements for installing a T&P relief valve, including sizing and discharge piping.

2.2. Drain Valve

Instructions for installing drain valves and piping for domestic and boiler water drainage.

2.4. Thermal Expansion

Need for an expansion tank to prevent pressure buildup from thermal expansion.

2.5. Water Hammer

Preventing water hammer to avoid damage to pipes, appliances, and the water heater tank.

2.6. Vacuum Breaker

Installing a vacuum breaker to protect the inner tank from negative pressure in the supply line.

2.7. General Piping

2.8. Domestic Piping

2.12. Boiler Piping

Chapter 3: Installation - Wiring

3.1. Wiring Requirements

Electrical wiring standards, wire gauge, and compliance with national and local codes.

Chapter 4: Water Heater Start-Up

4.1. Filling the Inner (Domestic Water) Tank

Step-by-step instructions for filling the domestic water tank and venting air.

4.2. Filling the Outer (Boiler Water) Tank

Procedure for filling the boiler water tank, venting air, and checking antifreeze.

4.3. Adjusting the Water Heater Thermostat

How to adjust the thermostat for desired water temperature and considerations for bacteria prevention.