AquaStar 240 FX Installation And Owner's Manual
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AquaStar 240 FX Installation And Owner's Manual

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Controlled Energy Corp.
340 Mad River Park
Waitsfield, VT 05673
Tel. (800) 642-3111
Tech support is available at
www.controlledenergy.com
MODEL AQUASTAR 240 FX
Suitable for water (potable) heating only
WATER HEATER
Manufactured by Takagi Industrial Co. USA Inc.
The Aquastar name is trademarked and licensed by Bosch.
FEATURES
ENDLESS HOT WATER
ON DEMAND, NO STAND-BY LOSS
COMPACT, SAVE SPACE
CONSERVES ENERGY
COMPUTER CONTROLS
COMPUTERIZED SAFETY
NO PILOT LIGHT
AVAILABLE ACCESSORIES (see p.16)
REMOTE THERMOSTAT – 240TSTAT
HORIZONTAL VENT TERMINATOR WITH
DRAFT DAMPER - FXHOOD
AUTOMATIC
INSTANTANEOUS WATER HEATER
INSTALLATION AND OWNER'S
FOR YOUR SAFETY
product must be installed and serviced
by a professional service technician,
qualified in water heater installation.
Installation
and/or
create carbon monoxide gas and flue
gases, which could cause serious
injury or death. Improper installation
and/or operation will void the warranty.
In the Commonwealth of Massachusetts
this product must be installed by a
licensed plumber.
WARNING
: If the information in this
manual is not followed exactly, a fire or
explosion may result, causing property
damage, personal injury or death.
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity
of
appliance.
WHAT TO DO IF YOU SMELL GAS
Do
appliances.
Do not touch any electrical
switch, also do not use any
phone in your building.
Immediately call your gas
supplier from a neighbor's
phone.
supplier's instructions.
If you cannot reach your gas
supplier,
department.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
1
MANUAL
-
operation
this
or
any
not
try
to
light
Follow
the
call
the
This
could
other
any
gas
fire

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Summary of Contents for AquaStar AQUASTAR 240 FX

  • Page 1 Suitable for water (potable) heating only light WATER HEATER appliances. Manufactured by Takagi Industrial Co. USA Inc. The Aquastar name is trademarked and licensed by Bosch. Do not touch any electrical switch, also do not use any FEATURES ENDLESS HOT WATER phone in your building.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS For Your Safety …………. 3 Natural Gas Input Min. 37,000 Btu Max. 165,000 Btu Operation …………. 4 LP Gas Input Min. 35,000 Btu Max. 165,000 Btu General …………. 4 Normal Operation …………. 4 Gas Connection ¾” NPT Start Up ………….

  • Page 3: For Your Safety

    FOR YOUR SAFETY warm or mild climates. Locations with winter temperatures that regularly drop below freezing PLEASE, READ CAREFULLY THIS MANUAL AND are not recommended. Refer to the section on FOLLOW IT FOR YOUR SAFETY. Winterizing and Freeze Prevention Device for more information.

  • Page 4: Operation

    OPERATION 2. “Fire On” lamp extinguished, the exhaust fan will continue to operate for 70 seconds. General The AQ240FX Water Heater is an instantaneous, tankless water heater designed supply household and commercial hot water with total efficiency. The principle behind the AQ240FX Water Heater is simple.

  • Page 5: Winterizing

    installation. For this freeze prevention system to operate there has to be electrical power to the unit. 1. Make sure all hot water taps are closed and the The freeze prevention devices will not work if drain plugs are securely attached. the electrical power source is disconnected.

  • Page 6: Outdoor Installation

    2. This unit is not capable of being used as a pool OUTDOOR INSTALLATION or spa heater, nor is it certified for space heating. Follow all local codes a nd in the absence of 3. The internal gas regulator is preset at the local codes, follow the National Fuel Gas Code factory.

  • Page 7: Indoor Installation

    WARNING: Improper installation can cause nausea or asphyxiation from carbon monoxide and flue gases which could result in severe injury or death. FOR HIGH ALTITUDE INSTALLATIONS ABOVE 5,000 FEET The btu output of the AQ240FX will be reduced 4% for each 1,000 feet over 5,000 feet. The computer operation of the heater properly monitors the btu WARNING : Do not have the flue terminal pointing output and combustion quality of the heater up to a...

  • Page 8: Combustion Air

    Combustion Air Supply INSIDE AIR SUPPLY; when combustion air is supplied from inside the building. Each opening of The water heater location must be provided with a the closet door should have a minimum free area of proper amount of combustion air. See the latest one square inch per 1000 BTUH input of the total edition of ANSI Standard Z223.1 and any local input rating of all appliances in the enclosed area.
  • Page 9 The entire vent system must not exceed the specifications in the following table. Max. Vertical or Max. No. of Horizontal Diameter Elbow run in Length 4” 3 Ea. 21 ft Subtract 5 feet for each elbow. Example: 11 ft. is the maximum total distance if two elbows are used.

  • Page 10: Manufactured Home (Mobile Home) And

    GAS SUPPLY AND PIPING If Vertically Venting: Follow the vent length specifications in table on This unit requires a gas control shut-off valve to be page 9 and use a listed vent cap. supplied by the installer. It must be placed on the unit before it is connected to the gas line.
  • Page 11 Check the rating plate to make sure that the unit is labeled for the type of gas available in the area. The gas supply piping should be sized according to the Applicable Plumbing Code for a maximum draw of 165,000 BTUH. First determine the effective length of the gas supply line by measuring the actual length of piping, and then adding 5 ft.

  • Page 12: Water Connections

    PRESSURE RELIEF VALVE Water Connections This unit is supplied with a listed pressure relief A listed manual water control valve must be placed valve. The pressure relief valve must be installed on on the cold water supply line. All soldering materials the hot water outlet.

  • Page 13: Electrical Connection

    Electrical Connections A green screw is provided in the junction box for grounding connection. WARNING : The heater must be electrically grounded in accordance with the most recent edition of the National Electrical Code, ANSI/NFPA 70. Do not rely on the gas or water piping to ground the metal parts of the heater.

  • Page 14: Wiring Diagram

    Wiring Diagram: wiring diagram is also located on the inside panel of the appliance. Electrical Rating 120 VAC, 60 Hz, 0.8 A Note: If any of the original wiring supplied with this appliance must be replaced, it must be replaced with appliance wiring material (180c) or its equivalent. Wires are available through the manufacturer.

  • Page 15: Initiating The Heater

    Initiating the Heater Operating Instructions For your safety read before operating. 1. STOP! Read the safety information first! 2. Turn off electric power to the appliance. WARNING : If you do not follow these 3. Do not attempt to light the burner instructions exactly, a fire or explosion may manually.

  • Page 16: Accessories

    Two 18” wide wall support brackets are supplied with the 240FX water heater. Use for 240BRACKET wall mounting. Part number: Remote temperature controller for Aquastar Back draft prevention vent terminator for 240FX. The 240TSTAT is a remote control horizontally vented installations. Prevents cold...

  • Page 17: Maintenance And Service

    TROUBLE SHOOTING: Maintenance and Service COMMON QUESTIONS AND ANSWERS WARNING: Always turn off the electrical Reference diagrams on pages 13, 19 and 20 power supply, turn off the manual gas Q: No hot water valve and turn off the manual water Q: The “on”...

  • Page 18: Error Codes

    These 3 listed symptoms and solutions are to be followed when there is a problem but there is NO error code on the heater or 240TSTAT remote control. 1. Water Isn’t Hot Enough The 240FX can burn gas at a maximum input rate of 165,000 BTUH. This puts a limit on the possible output temperature and flow capabilities (See flow chart on the last page of this manual).
  • Page 19 Determine the error by observing the upper and lower lights of the 240FX. The (No) column in the chart below references the error code number on 240TSTAT remote controls. Upper ON lamp DO NOT TOUCH WARNING Lower stand -by lamp look into this opening at a 45 degree angle from the right to properly view this lamp...

  • Page 21: Part List

    PARTS LIST (the part number is EK followed by the ITEM number) ITEM DESCRIPTION ITEM DESCRIPTION CASE ASSEMBLY TOP ASSEMBLY OUT DOOR VENT CAP FRONT COVER COMBUSTION CHAMBER PACKING FAN MOTOR GAS VALVE UNIT VALVE FIXING PLATE GAS IN PIPE COMBUSTION CHAMBER FRONT BACK GUARD PANEL LEFT MANIFOLD...
  • Page 22 Flow Rate and Temperature Rise with varying inlet water temperatures The 240FX has been set at the factory to deliver 122º F (50º C) water. This is electronically controlled by the computer in the heater. The delivered hot water temperature will depend upon both the inlet water temperature and the hot water flow rate, refer to the chart below.
  • Page 23 Shipping Costs In addition to supplying the replacement part(s), CEC will pay transportation costs for these parts to a convenient delivery point near you selected by CEC, such as a local AquaStar dealer or distributor. Service Labor Costs This warranty does not cover any labor costs associated with service, removal or re-installation of part(s). All such costs must be borne by the Purchaser.

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