Operating instructions

ManualsBrandsAquaStar ManualsWater Heater125FX LP

WARNING: Improper installation,

adjustment, alteration, service or maintenance can

cause injury or property damage. Refer to this manual.

For assistance or additional information consult a

qualified installer, service agency or the gas supplier.

Upon completion of the installation, these instructions

should be handed to the user of the appliance for

future reference.

FEATURING: Automatic Variable Power Modulating Gas

Valve, Electronic Ignition and Power Venting

INSTALLATION AND OPERATING INSTRUCTIONS FOR AUTOMATIC

INSTANTANEOUS TYPE WATER HEATER FOR USE WITH NATURAL AND

LIQUEFIED PETROLEUM GAS

MODEL 125FX LP and 125FX NG

(Flow Modulated with Electronic Ignition and Power Venting  a Type III Category Appliance)

Suitable for heating potable water only

Not approved for space heating purposes

Intended for variable flow applications with steady cold water inlet temperatures.

For preheated domestic hot water, install the 125 BS model. For recirculating applications, install the 125 BL model.

WARNING

If the information in this manual is not followed

exactly. A fire or explosion may result causing property

damage, personal injury or death.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable,

combustible or corrosive vapors and liquids in the

vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

- Close gas valve. Open windows.

- 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 neighbors

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 the gas supplier.

Specifications .................................................... Page 2

Rules for safe operation .................................... Page 4

Locating the Heater ............................................ Page 4

Combustion Air Requirements ............................ Page 5

Mounting the Heater ........................................... Page 6

Venting the Heater ............................................. Page 6

Gas Connections ............................................... Page 9

Water Connections .......................................... Page 10

Electrical Connections ......................................Page 11

Safety before turning on the heater ................... Page 12

Lighting and Operating instructions .................. Page 12

Setting water temperature ................................ Page 12

Maintenance & Service..................................... Page 13

Trouble Shooting .............................................. Page 14

Diagram of AquaStar......................................... Page 17

Components and Parts List .............................. Page 18

TABLE OF CONTENTS

6 720 606 455 (01.05) JS

Summary of content (20 pages)

PAGE 1
INSTALLATION AND OPERATING INSTRUCTIONS FOR AUTOMATIC INSTANTANEOUS TYPE WATER HEATER FOR USE WITH NATURAL AND LIQUEFIED PETROLEUM GAS MODEL 125FX LP and 125FX NG (Flow Modulated with Electronic Ignition and Power Venting a Type III Category Appliance) Suitable for heating potable water only Not approved for space heating purposes Intended for variable flow applications with steady cold water inlet temperatures. For preheated domestic hot water, install the 125 BS model.
PAGE 2
Principle of Operation: When a hot water faucet is opened, the flow of water through the heater causes the gas valve to open. At the same time a microswitch is activated which sends a spark to the pilot. The flame sensor confirms that the pilot has been lighted and allows the first two burners to ignite. The flame sensor confirms correct activation and all burners ignite. The pilot goes out. The power exhaust system runs as long as the burners are on.
PAGE 3
D084_089 FRONT VIEW SIDE VIEW MINIMUM INSTALLATION CLEARANCES FROM COMBUSTIBLE AND NON COMBUSTIBLE MATERIALS FOR ALCOVE OR CLOSET INSTALLATIONS MODEL 125FX TOP (A) 12" FRONT (B) 4" BACK 0" SIDES 4" FLOOR (C) 12" * FLUE DIAMETER 4" * Some local codes require 18 in garage installations AQUASTAR MODEL 125FX 3
PAGE 4
GENERAL RULES TO FOLLOW FOR SAFE OPERATION 1. You should follow these instructions when you install your heater. In the United States: The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code ANSI Z223.1/NFPA 54. In Canada: The Installation should conform with CGA B149.(1,2) INSTALLATION CODES and /or local installation codes. 2. Carefully plan where you install the heater. Correct combustion air supply and flue pipe installation are very important.
PAGE 5
COMBUSTION AIR REQUIREMENTS The AquaStar water heater holds cold water in its copper heat exchanger and brass water valve when not in use. Because of this, any cold air that comes in through the units vent pipe is capable of freezing these components. This Installation Manual specifies the vent length requirements and the amount of combustion air required for this unit. When all requirements are followed, the unit will operate properly and safely.
PAGE 6
WALL STUDS 13 ¼ SUPPORT BOARD 1 X 4 SPACE BOARD Fig. 2 - Mounting the Heater The incandescent particle tray (shipped loose in the carton with the water heater) must be attached at the bottom of the water heater front cover at the time of installation. Use the screws provided. See figure 3. SCREWS INCANDESCENT PARTICLE TRAY Fig. 3 - Incandescent Particle Tray Illustration VENTING WARNING: Do not reduce the vent pipe size.
PAGE 7
4 single wall sealed vent pipe Approved Vent Terminal (FX Hood or other approved terminal) The FX Hood is design approved with the Aquastar 125FX and has a built in back draft flapper to prevent negative air from freezing the Aquastar see Fig. 5 for restrictions in location of vent terminal. HORIZONTAL SIDE WALL * Maximum 15 feet, maximum 15 feet with 2 elbows. Deduct 5 feet for each additional elbow.
PAGE 8
The approved vent terminal must be installed so that flue gases will not jeopardize people, overheat combustible structures or enter into buildings, and so that proper clearances are maintained (See Fig 5). a) The vent terminal shall not be less than 7 feet above a public walkway. b) The vent terminal shall terminate at least 3 feet above any (mechanical) air inlet within 10 feet. c) The vent terminal shall not be within a 6-foot radius from a gas meter or regulator.
PAGE 9
GAS PIPING, CONNECTIONS and Gas Regulator Before connecting the gas supply, check the rating plate on the right side of the front cover to be sure that the heater is rated for the same gas to which it will be connected. In the United States: The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code ANSI Z223.1/NFPA 54. In Canada: The Installation should conform with CGA B149 INSTALLATION CODES and /or local installation codes.
PAGE 10
It is strongly recommended that the natural gas pipe line be 3/4" for the entire distance. If the maximum length is above 40 feet, use 1" line. Flexible tubing is NOT recommended, but if it is to be used, oversize it. With LP gas installation, the recommended sizes are 5/8" up to a maximum of 20 feet distance, 3/4" up to 50 ft distance and 7/8" up to 100 feet. National Fuel Gas Code requires that a sediment trap (drip leg) be installed on gas appliances.
PAGE 11
- Typical setups are shown below with the pressure relief valve attached. The pressure relief valve is supplied with the heater, and should only be fitted on the hot water outlet as shown. The cold water inlet setup will be identical to diagrams below but without the pressure relief valve. - For ease of installation the piping setup should be prepared as one whole piece with either threaded or sweated connections. The entire assembly will then mount easily against a wall and to the back of the Aquastar.
PAGE 12
Open the cold water inlet supply to the heater fully. Open a hot water faucet to permit the water to fill the heater and the piping and to eliminate the air trapped in the system Close the hot water faucet after the water flows freely and all the air has escaped from the system. The water heater is now ready to operate.
PAGE 13
between will give various temperatures between 140° and 95°F at various flow rates between 2.0 and 4.0 gallons per minute. The position you select on the temperature selector dial will depend on the temperature of the incoming water (50°F is average in the U.S.).
PAGE 14
3. Water flow is not sufficient to activate heater. Water flow rate at faucet is below minimum flow needed to activate heater. When temperature adjustment knob is turned all the way clockwise, the AquaStar model 125FX requires 1/2 gallon per minute flow to activate the heater. As a reference, this is a flow which would fill a quart jar in 30 seconds. If the temperature adjustment knob is turned fully counterclockwise, a flow rate of 1.1 gallons/minute is required to activate the heater. 4.
PAGE 15
Mineral deposits can eventually (3-5 years in hard water areas) corrode the water valve parts to a point where they will need replacing. Any sign of moisture at the bleed hole is a sign that the water valve needs to be replaced immediately. 10. Loose connection at the ECO Ignition sparker will not operate if the electrical circuit is interrupted. Check that the connections to the ECO are secure and tighten if necessary. 11.
PAGE 16
2. Inlet water temperature is too warm or inlet water is preheated Decrease gas pressure. Note: Only the Model 125B S AquaStar should be used if the inlet water is preheated. 3. Inlet filter screen is clogged, restricting flow Remove screen and clean it. WATER IS NOT HOT ENOUGH 1. Temperature selection is set too low. Change the setting. Turn the temperature selector knob clockwise (to the right). Note: this will decrease the activation flow rate. 2.
PAGE 17
Fig. 17 - Diagram of AquaStar 125FX 14 1 3 2 4 5 6 9 13 7 10 8 11 12 1. 2. 3. 4. 5. 6. 7. Heat exchanger Pilot assembly Burner manifold gas pressure test nipple Main gas burner Pilot gas tubing Gas valve Electronic control box 8. 9. 10. 11. 12. 13. 14.
PAGE 18
Fig.
PAGE 19
Fig.
PAGE 20
Replacement Parts available from North American Distributor CONTROLLED ENERGY CORP. 340 Mad River Park Waitsfield, Vermont 05673 Phone 800-642-3111 Fax (802) 496-6924 www.controlledenergy.com techsuppport@controlledenergy.com VULCANO Termodomésticos S.A.