Laars FTCF User Manual

User’s Manual Document 1321B

User’s Manual

THE

SERIES

Floor-Standing, Modulating Gas, Condensing, Combination Boiler

Model FTCF

140,000 BTU/hr 199,000 BTU/hr

• Natural Gas (NG) - Factory Conguration

• Propane Gas (LP) - Field-Convertible

FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,

qualied in hot water boiler and heater installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in ue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty.

WARNING

If the information in this manual is not

followed exactly, a re or explosion may result causing property damage, personal

injury or loss of life.

Do not store or use gasoline or other

ammable 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 re department.

Installation and service must be performed by a qualied installer, service agency, or gas supplier.

AVERTISSEMENT

Assurez-vous de bien suivres les instructions données dans cette notice pour réduire au minimum le risque d’incendie ou d’explosion ou pour éviter tout dommage matériel, toute blessure ou la mort.

Ne pas entreposer ni utiliser d’essence ni d’autres vapeurs ou liquides inammables dans le voisinage de cet appareil ou de tout autre appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d’allumer d’appareils.

• Ne touchez à aucun interrupteur. Ne pas vous servir des téléphones dansle bâtiment où vous êtes.

• Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions

du fournisseur.

• Si vous ne pouvez rejoindre le fournisseur de gaz, appelez le sservice des incendies.

L’installation et l’entretien doivent être assurés par un installateur ou un service d’entretien qualié ou par le fournisseur de gaz.

H2373100B

Page 2

CONTENTS Pgs -

1. Familiarizing yourself to the FT .............................2

2. Caring For Your FT ................................................2

3. Start Up and Shut Down. ......................................4

4. Control Display and Operation .........................4-10

Front Panel Knob

1. Familiarizing yourself to

User Interface

THE

Top Access Panel

Rating Plate

w/ Model Number

Cover

The FT is a oor standing, condensing

and fully modulating, residential boiler

and water heater.

This Users Manual will guide you into the

basics of operating your FT

Please reference the Installation and Operation

Manual for complete details.

Document # 1320

2. Caring For Your FT

Your FT will require very little maintenance.

However, as with any ne appliance, there are certain

steps that should be taken to ensure continuing

optimum performance.

2.1 General Care

Keep the area around the FT clean and free from

combustible materials, gasoline and other ammable liquids and vapors.

The FT must be completely isolated and protected

from any source of corrosive chemical fumes such as

trichlorethylene, perchlorethylene, chlorine, etc.

Keep bottom and top openings on the boiler free

for proper ventilation of interior components.

Do not obstruct or block a free ow 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 ammable 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.

Front Panel

(pulls forward

after front panel

knob is released)

All Piping

Connections

2.2 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 qualied service person.

2.3 In the Event of a Power Failure

The FT can not be operated during an electrical

power outage. If there is an extended power outage with danger from freezing, then the FT (and all other water systems) should be drained completely. When draining

this combi boiler, turn off main electrical disconnect

switch. When placing back in service, refer to Section 3 of this Manual for instruction. All draining and lling must only be done by a qualied service person.

2.4 Full Service Every Year

In addition to the annual visual inspections, a qualied service agency should conduct a detailed inspection of all ue product carrying areas of the boiler and its venting system.

User’s Manual - The FT Series Floor Standing, Combination Boiler

Operating Mode

Combustion Air Inlet

Gas Inlet

Space Heating Water Return

Space Heating Water Supply

Page 3

Shown is the FTCF140. The FTCF199 is very similar.

Note: The greatest installation difference

between the FTCF140

and FTCF199, other than general output capability (BTU’s), is that the air inlet and exhaust vent are

opposite.

NO Name of Component

Air Pressure Sensor

BLDC FAN

PCB Bracket

Flame Detection Sensor

Flame Detection Window

Manual Switch

Display Control

Exhaust Pipe

Recirculation Pump(CH)

Mixing Valve

Recirculation Pump(DHW)

Hot Water Ass'y

Water Discharge Valve

Water Discharge Adapter

Condensate Trap Adapter

NO Name of Component

Condensate Hose 1

DHW Inlet Adapter

Condensate Trap

DHW Outlet Adapter

Condensate Hose 2

CH Return Adapter

Air Pressure Switch

CH Supply Adapter

Heat Exchanger

Gas Inlet Adapter

Gas Valve

Air Vent

Ignition Transformer

Igniter

Air Intake Pipe

Page 4

Page 50

SECTION 5. Control Display and Operation

5.1 Control Dial and Buttons

The Control Display

3. Shut Down and Restart

3.1 To Start the FT

If drained, please refer to the Install and Operating

Manual to ensure that the complete ‘Setup’

procedure has been followed before starting this boiler. A complete ‘Setup’ must be performed by a

qualied service person.

4. The Control Display and Operation

3.2 Shutting Down the FT

1. Turn off the main electrical disconnect switch.

2. Close all manual gas valves.

3. If freezing is anticipated, drain the FT and be

sure to also protect the 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 qualied service person.

Status Light

(constant green

when operating

normally)

The Control Display has a Control Dial (E), 4 buttons (A, B, C, D), and a Liquid Crystal Display (with 72 back-lit segments). This section of this manual gives instruction on how to navigate into the many functions of the FT and to change temperature set points, set system variables and controller parameters.

Buttons

B Modes Tap to return to menu

• Temperature Speci cations 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.

Display Power

Hot Water

Central Heat

Scroll / Select

Turns Control Display ON / OFF

DHW Set-Point LOW Range

CH set-point mode (boiler only) Toggle (°C / °F)

PRESS (Tap) PRESS and HOLD (5 seconds)

95 - 120°F (35 - 49°C)

Turn to scroll, tap to select

(clockwise or counterclockwise)

Functionality

(If Display Power was On )

(If Display Power was Off ) Installer Mode

Status Display Mode

DHW Set-Point HIGH Range

121 - 140°F (49.5 - 60°C)

+ 8 hidden pages