Laars FT Series Bedienungsanleitung

User’s Manual Document 1484A

H2412300A

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.

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.

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.

User’s Manual for

Wall-Mounted, Modulating

Gas, Condensing, Heating Only, Boiler

Model FTHW

• Natural Gas (NG) - Factory Conguration

• Propane Gas (LP) - Field-Convertible

100,000 BTU/hr

140,000 BTU/hr

199,000 BTU/hr

Page 2

CONTENTS Pgs

1. Familiarizing yourself to the wall mounted FT Series Boiler .......2-3

2. Caring For Your FT Series Boiler ...................................................4

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

4. Control Setup and Operation ....................................................5-10

1. Familiarizing yourself to

Boiler

The FT Series boiler is a highly e󰀩cient,

wall mounted, condensing and fully

modulating, residential boiler. This Users

Manual will guide you into the basics of

operating your

FT Series Boiler.

Please reference the

Installation and Operation Manual

for complete details. Doc # 1483

4 SCREWS

MODEL NUMBER

NO Name of Component

Air Vent (air eliminator)

Air Intake Collar

Air / Gas Mixing Pipe

Gas Inlet Pipe 2

Gas Valve

Exhaust Duct

Low Water Cut O󰀨

Overheat Temperature Sensor

Flame Detecting Sensor

Main PCB

Control Display

Manual ON/OFF Power Switch

Gas Inlet Pipe 1

‘CH’ Internal Pump

Gas Inlet Adapter

‘CH’ Supply Adapter

NO Name of Component

CH Pressure Gauge

‘CH’ Return Adapter

Condensate Trap

Condensate Adapter

CH Return Temperature Sensor

Condensate Air Pressure Switch

Terminal Block

Heat Exchanger

Ignition Transformer

Sight Glass

Burner Overheat Switch

Igniter

BLDC Fan (blower)

Exhaust Temperature Sensor

Air Pressure Sensor

Vent Pipe Collar

CONTROL PANEL

AND DISPLAY

CENTRAL HEAT

PRESSURE GAUGE

THE FT SERIES

User’s Manual - The FT Series Wall Mounted, Boiler Page 3

Shown is the FT Series Heating Only 140 MBH.

All sizes are very similar in component layout.

15 16 201918

FTHW120/140

Page 4

3. Shut Down and Restart

3.1 To Start the FT Series boiler

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.

3.2 Shutting Down the FT Series boiler

1. Turn o󰀨 the main electrical disconnect switch.

2. Close all manual gas valves.

3. If freezing is anticipated, drain the FT Series

Boiler 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, Doc # 1483

This step to be performed by a qualied service

person.

2. Caring For Your FT Series Boiler

Your FT Series boiler 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 Series boiler clean

and free from combustible materials, gasoline and

other ammable liquids and vapors.

The FT Series Boiler 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.

2.2 Annual Inspection of Flue and Vents

Visually inspect the vent pipe once a year. Should

any deterioration exist, have the a󰀨ected parts replaced

by a qualied service person.

2.3 In the Event of a Power Failure

The FT Series boiler can not be operated during

an electrical power outage. If there is an extended

power outage with danger from freezing, then the FT

Series Boiler (and all other water systems) should be

drained completely. When draining the boiler, turn o󰀨

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 Wall Mounted, Boiler Page 5

4. The Control Display and Operation

The FT Series Heating Only, Boiler Page 55

SECTION 5 Control Display and Operation

5.1 Control Dial and Buttons

• 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.

Buttons Functionality

PRESS (Tap) PRESS and HOLD (5 seconds)

A Display Power Turns Control Display

ON / OFF

B Modes Tap to return to menu (If Display Power was On ) Status Display Mode

(If Display Power was O󰀨 ) Installer Mode

Heating

Water

CH set point change mode

(Maxium 82

°C(180°F))

Time / Date

Set

No Change To SET: Year/Month/Week/Day/Time/Min

Scroll / Select

Menu select or value

up(+)/down(-) or setting dial.

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.

Status Light

(constant green

when operating

normally)

The Control Display

55page

WARNING

Do no use this appliance if any part has been under

water. Immediately call a quali ed service technician

to inspect the appliance and to replace any part of

the control system and any gas control that may have

been under water.

Page 6

4. The Control Display and Operation (continued)

Page 56

5.2 LCD Overview

The LCD will illuminate when a user action is detected (a button is pressed) and will

turn back o󰀨 after 20 seconds.

Symbol Name Description

Service Reminder mode Service Reminder mode indication

Outside Temperature Mode Outside Temp setting indication

Anti-freeze mode Anti-freeze mode indication

Storage mode Storage mode indication

Information mode Information mode indication

Communication state Communication state indication

Time setting mode Time /Dispaly/Install mode indication

Fan operating mode Fan operating mode indication

Flame signal Flame Signal indication

CH pump mode CH pump mode indication

Storage pump mode Storage pump mode indication

Internal boiler pump Internal Boiler pump mode indication

Celsius mode Indicated as Celsius temperature

Fahrenheit mode Indicated as Fahrenheit temperature

Heat demand mode Heat demand mode indication

DAY mode Current day mode indication

Cascade System connecting

mode

Cascade System connecting mode

indication

Cascade System operating mode Cascade System operating mode

indication

User’s Manual - The FT Series Wall Mounted, Boiler Page 7

The FT Series Heating Only, Boiler Page 57

5.3 Operating Mode

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 brie y show a sequence of diagnostic codes before

entering into the ‘Operating Mode. It will then display the following information.

The Control Display can operate through user and service modes that have speci c LCD output

and dedicated controls:

• Set point change mode • Lock mode • Error mode • Status display mode

• Outside Temperature mode • Installer mode

* Control Display will not allow changing of button in case of lock mode activated.

Indicate Indicator

Current Operating Temperature Set point

If the Fan is operating

If a  ame is detected

Celsius or Fahrenheit or

Date and Time indicator

If Outside Temperature Sensor is operating

If there is a Demand for Central Heat (CH)

If CH pump state is

operating

If Internal recirculation pump is operating

If Communication state is activated

57page

Page 8

Page 58

The P-950EH Control Display does NOT have a daily timer or programmable thermostat.

Setting the Clock

a. Press and hold the ‘Clock button’ for about 5 seconds. Set the ‘Year’ by turning the dial E. And

then, press the dial E to Save.

b. Set the ‘MON’ (Month) by turning the dial E to the desired month number. Then press the dial E to Save.

c. Set the ‘DATE’ (1-31, Day of the Month) by turning the dial E. Then press the dial E to Save.

d. Set the ‘HOUR’ (1-24, Hour of the Day) by turning the dial E. Then press the dial E to Save.

e. Set the ‘MIN’ (1-60, Minute of the Hour) by turning the dial E. Then press the dial E to Save.

f. Set the ‘Day’ (Sun - Sat) by turning the dial E. Then press the dial E to Save.

To Exit at any time, tap the button.

5.4 Setting the Clock

57page

User’s Manual - The FT Series Wall Mounted, Boiler Page 9

Page 58

The P-950EH Control Display does NOT have a daily timer or programmable thermostat.

Setting the Clock

a. Press and hold the ‘Clock button’ for about 5 seconds. Set the ‘Year’ by turning the dial E. And

then, press the dial E to Save.

b. Set the ‘MON’ (Month) by turning the dial E to the desired month number. Then press the dial E to Save.

c. Set the ‘DATE’ (1-31, Day of the Month) by turning the dial E. Then press the dial E to Save.

d. Set the ‘HOUR’ (1-24, Hour of the Day) by turning the dial E. Then press the dial E to Save.

e. Set the ‘MIN’ (1-60, Minute of the Hour) by turning the dial E. Then press the dial E to Save.

f. Set the ‘Day’ (Sun - Sat) by turning the dial E. Then press the dial E to Save.

To Exit at any time, tap the button.

5.4 Setting the Clock

57page

The FT Series Heating Only, Boiler Page 59

5.5 CH Set Point Change Mode

CH Set point Change Mode

Indicate Indicator

Current CH Temperature Set point

Celsius or Fahrenheit or

If Communication state is activated

If  ame is detected

Date and Time indicator

If CH pump is operating

If there currently a Demand for Central Heat (CH)

Default CH set point is 180°F (82°C)

CH set point range is 130°F ~180°F (54°C ~ 82.0°C)

To change CH Set point, press the C button. The CH Icon and current

CH Set point will  ash.

Turn the E dial clockwise to increase, and counterclockwise to decrease CH set point, until

desired temperature is reached.

Press E dial to save changes and to Exit.

57page

Page 10

Page 60

5.6 Status Display Mode

Digital Display

Status Display Parameter

Description

O: ot Outdoor temperature Current outdoor sensor temperature

A: In 0-10 V display Current voltage of (0-10V input)

b: tt CH target temperature in cascade system Current CH target temperature or Current

System target temperature in a cascade system

C: It CH return water temperature Current CH return water temperature

d: Fr FAN speed ( rpm) Current FAN speed ( RPM)

E: oP CH supply temperature (Operating temperature) Current heating temperature

F: Eh Exhaust gas temperature Current exhaust gas temperature

H: dH

Indirect DHW tank temperature

* If temperature sensor is not connected

then it will display with 0°F (0°C).

Current DHW tank temperature

I: oH Overheat water temperature Current Overheat water temperature

L: rt

1: PH

Burner Operation

Time

Time for supply power

L: rt on display

on sub menu

Unit : 1000hour

2: rh Time for burner

operation Unit : 1hour

3: rH Time for burner

operation Unit : 1,000hour

4: It Cycle for ignition Cycle : 10 times the

displayed unit

5: IH Cycle for ignition Cycle : 10,000 times the

displayed unit

SELF Percentage of self units running. Percentage of self units running.

ALL Capacity for all operating

cascade units

Percentage of all cascade units running.

This screen shows the overal cascade power output. The

range of this value of boilers communicating with theMaster

x 100. For example, if 8 boilers are connected and

communicating, the maximum cascade power is 800%.

Range: 0 -100%

F1 – F

19 Capacity for individual boilers Percentage of each cascade units running.

Ex. F1, F2, ….

N: St

System Temperature (cascade

mode) * If system temperature

sensor is not connected then it will

display with 0°F (0°C).

Current System Temperature (cascade mode)

NOTE: For Cascading

Installations, please refer to

document 1349 ‘Cascading

the FT Series Boiler’,

available online.

60page

To view any Status Parameter,

Press and Hold Button B to get into the Status Display Mode.

Rotate Dial E until you  nd the Parameter that you wish to view. Tap Dial E to enter that Parameter as

required. Dial E to save and to exit the Status Information Menu. To go back to the Operation Screen

Press button B.

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