Laars FTCW Manuel utilisateur
User’s Manual Document 1319D
H2372900D
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 qualied installer, service agency, or gas
supplier.
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualied 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 inammables 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 qualié ou
par le fournisseur de gaz.
User’s Manual
Wall-Mounted, Modulating
Gas, Condensing, Combination Boiler
Model FTCW
140,000 BTU/hr
199,000 BTU/hr
• Natural Gas (NG) - Factory Conguration
• Propane Gas (LP) - Field-Convertible
THE FT SERIES
Page 2
1. Familiarizing yourself to
CONTENTS Pgs -
1. Familiarizing yourself to the wall mounted FT combi ......... 2
2. Caring For Your FT ............................................................ 2
3. Start Up and Shut Down. .................................................. 4
4. Control Setup and Operation ........................................4-10
The combi FT is a wall mounted,
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.
Doc# 1318
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.
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 qualied 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
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 lling must only
be done by a qualied service person.
2.4 Full Service Every Year
In addition to the annual visual inspections, a
qualied service agency should conduct a detailed
inspection of all ue product carrying areas of the boiler
and its venting system.
THE FT
MODEL NUMBER
User’s Manual - The FT Series Wall Mounted, Combination Boiler Page 3
# 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
Recirculation Pump DHW / CH Primary 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 (lter and ow restrictor)
# Name of Component
16
Condensate Connection
17
Condensate Trap
18
Air Pressure Switch (condensate)
19
Mixing Valve
20
Terminal Block
21
Control Panel and Display
22
Heat Exchanger
23
Ignition Trans
24
Flame Detecting Sensor
25
Burner Case
26
BLDC Fan
27
Vent Pipe
28
Air Pressure Switch
29
Vent Pipe Collar
30
Sight Glass
Hydronic Supply Hydronic Return
30
Page 4
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
qualied service person.
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 FT 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 qualied service person.
4. The Control Display and Operation
Page 52
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 Off ) Installer Mode
CHot Water DHW Set-Point LOW Range
95 - 120°F (35 - 49°C) DHW Set-Point HIGH Range
121 - 140°F (49.5 - 60°C)
DCentral Heat CH set-point mode (boiler only) Toggle (°C / °F)
EScroll / Select Turn to scroll, tap to select
(clockwise or counterclockwise)
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
User’s Manual - The FT Series Wall Mounted, Combination Boiler Page 5
4. The Control Display and Operation (continued)
The FT Series Wall Mounted, Combination Boiler Page 53
SECTION 5. Control Display and Operation 5.2 LCD Overview
CH mode Central Heat mode icon can be adjusted
Anti-freeze mode Anti-freeze mode icon
Storage Heating mode Stored Water Being Heated, can be adjusted
Lock mode Buttons-locked mode icon
Communication Communication icon
Summer mode Only DHW Mode, can be adjusted (warm weather shutdown)
Status and Installer mode The Status Mode or the Installer Mode is Active (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
Numeric Display
Domestic Hot Water Mode
Anti-Freeze
Mode Storage
Heating Lock Communicating
Status and
Installer
Modes
Flame
Signal
Pump
Outside
Temp Mode
or 0-10V
Summer Mode
(warm
weather
shutdown)
CH
Central
Heat
WARNING
Do not 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.
The LCD will illuminate when a user action is detected (a button is pressed) and will turn
back off after 20 seconds.
* NOTE: The display will not allow changes when the lock mode is activated.
To exit the Lock mode, press the button.
Page 6
Operating Mode
Page 54
SECTION 5. Control Display and Operation 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.
Indicate Example
Current Operating Temperature 110°F
Temperature sign Celsius or Fahrenheit letter °C or °F
Display and Controller are communicating
If ame detected
If pump is operating
Outdoor sensor or 0-10V
User’s Manual - The FT Series Wall Mounted, Combination Boiler Page 7
DHW Set Point Change Modes
The FT Series Wall Mounted, Combination Boiler Page 55
5.4 Status Display Mode
AUTODESK � � � � � � � � � �
AUTODESK � � � � � � � � � �
AUTODESK � � � � � � � � � �
AUTODESK � � � � � � � � � �
SECTION 5. Control Display and Operation
Digital Display Status Display Parameter Description
O:ot Outdoor temperature Current Outdoor temperature
A: Li orA: GA Flow unit Current fl ow value(Li: L/m, GA: GPM)
b: It CH Return Water Temperature Current Return Water Sensor Temperature
C: Fr Fan rpm Current fan rpm value
d: Lc Lock mode Lock mode ON/OFF
E: oP OP temperature Current OP temperature
F: dH DHW temperature Current DHW temperature
H: Eh Exhaust temperature Current Exhaust temperature
I : St N/A Not Used (Default is 0)
J: oH Overheat temperature Current Overheat temperature
L: rt
1: PH
Burner Opera-
tion Time
Supply power time Supply power time x 100 hour
2: rh Burner operation
time Burner operation time x 1 hour
3: rH Burner operation
time Burner operation time x 1,000 hour
4: It Ignition cycles Ignition cycles x 10 times
5: IH Ignition cycles Ignition cycles x 10,000 times
P: Ou
Displays output condition for internal
primary pump and three way valve.
- Off
- On
1st Icon 2nd Icon 3rd Icon
Not Used Internal CH
Pump 3 Way Valve
To change any of the above listed Status Parameters,
Press and Hold Button B to get into the Status Display Mode.
Rotate Dial E until you nd the Parameter that you wish to change. Tap Dial E to enter that Parameter.
Adjust to the setting that you require and then press (tap) Dial E to save and to Exit.
Page 8
Page 56
SECTION 5. Control Display and Operation 5.5 DHW Set Point Change Mode
DHW Set Point Change Modes
The display shows the following
information when changing water heating
temperature set points.
* Default DHW set-point is 120°F (49°C)
• DHW 95-120°F (35 - 49°C) LOW range (Default)
-To change LOW range, press the C Button. The DHW icon and current DHW LOW will ash (a
ashing value means it can be changed).
-Turn dial E clockwise to increase and counterclockwise to decrease until desired temperature is reached.
-Press dial E to save setpoint changes.
• DHW 121 - 140°F (49.5 - 60°C) HIGH range
-To change HIGH range, press and HOLD the C button for more than 5 seconds. The DHW icon
and current DHW HIGH will ash (a ashing value means it can be changed).
-Turn dial E clockwise to increase and counterclockwise to decrease until desired temperature is reached.
-Press dial E to save setpoint changes and to Exit.
Indicate Example
Current DHW set-point temperature 120°F
Temperature sign Celsius or Fahrenheit letter °C or °F
If display is communicating with the main controller normally, the communication icon will
be indicated.
When DHW set-point range is high : from 121°F (49.5°C) to 140°F (60.0°C) H . 140°F
When changing DHW setpoint, the DHW icon will fl ash S24
Changing between Celsius and Fahrenheit
When the button D is pressed (for more
than 5 seconds), temperature unit will toggle
between °C and °F.
DANGER
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, disabled,
and elderly are at highest risk of being scalded. Read all instructions before setting
temperature at appliance. Feel water before bathing or showering.
User’s Manual - The FT Series Wall Mounted, Combination Boiler Page 9
The FT Series Wall Mounted, Combination Boiler Page 57
To change CH Setpoint, press the D button. The CH Icon and current
CH Setpoint will ash.
Turn the E dial clockwise to increase, and counterclockwise to decrease CH setpoint, until
desired temperature is reached.
Press E dial to save changes and to Exit.
Default CH set-point is 120°F (49°C)
CH set-point range is 86 - 180°F (30.0 ~ 82.0°C)
Indicate Example
Current Operating Temperature 110°F
Temperature sign Celsius or Fahrenheit letter °C or °F
Display and Controller are communicating
If ame detected
If pump is operating
When changing CH Setpoint, the CH Icon will ash
SECTION 5. Control Display and Operation 5.6 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.
To change Storage Mode Temp, 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 nd 5:St
Tap Dial E to enter Storage Mode. Storage Mode indicates that the boiler
is heating the water held in the internal storage tank. When Storage Mode is active, the display will
appear as shown.
Turn the E dial clockwise to increase, and counterclockwise to decrease setting.
Press E dial to save changes and to Exit.
Indicate Example
Current Operating Temperature 110°F
Temperature sign Celsius or Fahrenheit letter °C or °F
Display and Controller are communicating
If ame detected
Storage mode indication
If Pump is operating
5.7 Storage Mode
Page 10
Notes:
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