Energy Star FTCW FT SERIES Wall-Mounted, Modulating Gas, Condensing,

Combination Boiler

FOR YOUR SAFETY

• This product must be installed and serviced by a professional service technician, qualified in hot water boiler and heater installation and maintenance.
• Improper installation and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty
• Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

•  Do not try to light any appliance.
•  Do not touch any electrical switch; do not use any phone in your building.
•  Immediately call your gas supplier from a nearby phone. Follow the gas supplier’s instructions.
•  If you cannot reach your gas supplier, call the fire department. Installation and service must be performed by a qualified installer, service agency, or gas supplier.

Familiarizing yourself to THE FT SERIES

The FT Series Combi is a wall-mounted, condensing and fully modulating, residential boiler and water heater. This User’s Manual will guide you into the basics of operating your FT Series Combi. Please reference the Installation and Operation Manual for complete details. Doc# 1487

Caring For Your FT

Your FT Series Combi will require very little maintenance. However, as with any fine appliance there are certain steps that should be taken to ensure continuing optimum performance.

General Care

• Keep the area around the FT Series Combi clean and free from combustible materials, gasoline and other flammable liquids and vapors.
• The FT Series Combi must be completely isolated and protected from any source of corrosive chemical fumes such as trichloroethylene, perchloroethylene, chlorine, etc.
• Keep bottom and top openings on the boiler free for proper ventilation of interior components.
• Do not obstruct or block a free flow of air to the boiler to ensure proper ventilation.
• If desired, clean the jacket surfaces with a damp cloth and mild detergent. Do not use flammable cleaning materials.
• If sidewall vented, keep the vent terminal clear of obstructions — do not allow snow to cover the vent terminal. Clean the intake screen often, and then develop an appropriate maintenance schedule

Annual Inspection of Flue and Vents
Visually inspect the vent pipe once a year. Should any deterioration exist, have the affected parts replaced by a qualified service person.

In the Event of a Power Failure
The FT Series Combi can not be operated during an electrical power outage. If there is an extended power outage with danger from freezing, then the FT Series Combi (and all other water systems) should be drained completely. When draining the boiler, turn off main electrical disconnect switch. When placing back in service, refer to Section 3 of this Manual for instruction. All draining and filling must only be done by a qualified service person.

Full Service Every Year
In addition to the annual visual inspections, a qualified service agency should conduct a detailed inspection of all flue product carrying areas of the FT Series Combi and its venting system.

Name of Component

| Name of Component

---|---
1| Air Vent (air eliminator)
2| Pressure Relief Valve
3| Air Intake Collar
4| Air Gas Mixing Pipe
5| Gas Valve
6| DHW Water Tank
7| Main PCB
8| Manual Power Switch (ON / OFF)
9| Boiler Pump
10| ‘CH’ Supply Connection
11| ‘CH’ Return Connection
12| CH Pressure Gauge
13| DHW Outlet Connection
14| Gas Inlet Connection
15| DHW Inlet Connection (filter and flow restrictor)
16| Condensate Connection

| Name of Component

---|---
17| Condensate Trap
18| Blocked Condensate Switch
19| Mixing Valve
20| Terminal Block
21| Control Panel and Display
22| Heat Exchanger
23| Ignition Transformer
24| Flame Detecting Sensor
25| Burner Case
26| BLDC Fan (Blower)
27| Vent Pipe
28| Air Pressure Sensor
29| Vent Pipe Collar
30| Sight Glass
31| Low Water Cut Off
32| Overheat Temperature Sensor

Shut Down and Restart

To Start the FT Series Combi

If drained, please refer to the Install and Operating Manual to ensure that the complete ‘Setup’ the procedure has been followed before starting this boiler. A complete ‘Setup’ must be performed by a qualified service person.

Shutting Down the FT Series Combi

•  Turn off the main electrical disconnect switch.
•  Close all manual gas valves.
•  If freezing is anticipated, drain the FT Series
• Combi and be sure to also protect building piping from freezing. All water must be removed from heat exchanger and condensate trap or else damage from freezing may occur. Please refer to the Install and Operating Manual.
• This step to be performed by a qualified service person.

The Control Display and Operation

Temperature Specifications

Operating ambient Temperature Range : -10 to 60°C. Operating Relative Humidity up to: 90% at 40°C. Shipping & Storage Temperature Range of : -20 to 80°C.

(all parameters)
Flame signal| Flame Signal icon
Pump icon| Water pump operation (CH or DHW) icon
Numeric Display| Number and character display, to display all parameters
DHW mode| Combination boiler Set Point, can be adjusted
Outside temp or 0-10 V mode| Operating by outside temperature or 0-10V

Operating Mode

After the Power is turned on, and/or the Control Display is turned on , the Control Display will go through a ‘Start Up’ checklist and briefl y show a sequence of diagnostic codes before= entering into the ‘Operating Mode. It will then display the following information

Status Display Mode

DHW Set Point Change Mode

The display shows the following information when changing water heating temperature set points. Changing between Celsius and Fahrenheit When the button D is pressed (for more than 5 seconds), temperature unit will toggle between °C and °F.

Scalding may occur within 5 seconds at a setting of 140°F (60°C). Water temperatures over 125°F can cause severe burns or death from scalding. Children, the disabled, and the elderly are at the highest risk of being scalded. Read all instructions before setting the temperature at the appliance. Feel water before bathing or showering. The manufacturer strongly recommends the use of an anti-scald mixing valve at a domestic hot water outlet (boiler location) to reduce the potential for scalding. Contact Manufacturer for recommended models. Check with local codes

CH Set Point Change Mode

Changing between Celsius and Fahrenheit When the button D is pressed (for more than 5 seconds), temperature unit will toggle between °C and °F.

Storage Mode

To activate heat storage function,

First, turn OFF the power to the Control Display. Then Press and Hold Button B to get into the Installer Mode. Rota te Dial E until you find 5:St Tap Dial E to enter Storage Mode. Storage Mode indicates that the boiler is maintaining the water temperature in the internal storage tank. When Storage Mode is active, the display will appear as shown. Turn the E dial clockwise to activate and counterclockwise to deactivate the Heat storage function. Default: ON. Press the E dial to save changes and to Exit.

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