Download  Print this page

Andrews WHX56 Installation Manual, Operation And Maintenance Manual

Fastflo (external) continuous flow wall hung balanced flue water heaters for natural gas and lpg.
Hide thumbs

Advertisement

This manual must be kept with the appliance
Part No E799
FASTflo
Installation Guide, Operation and Maintenance Manual
Continuous Flow Wall Hung Balanced Flue
Water Heaters for Natural Gas and LPG
WHX56, LWHX56
Working towards
a cleaner future
( external )
October 2010

Advertisement

   Related Manuals for Andrews WHX56

   Summary of Contents for Andrews WHX56

  • Page 1 This manual must be kept with the appliance October 2010 Part No E799 FASTflo ( external ) Installation Guide, Operation and Maintenance Manual Continuous Flow Wall Hung Balanced Flue Water Heaters for Natural Gas and LPG WHX56, LWHX56 Working towards a cleaner future...
  • Page 2 The attention of UK users is drawn to their responsibilities under the Health and Safety Regulations 1993. All installation and service on Andrews Water Heaters must be carried out by properly qualified personnel and, therefore, no liability can be accepted for any damage or malfunction caused as a result of intervention by unauthorised personnel.
  • Page 3: Table Of Contents

    CONTENTS PAGE GENERAL AND SAFETY INFORMATION SECTION 1 INCLUDED ACCESSORIES SECTION 2 OPTIONAL ACCESSORIES SECTION 3 QUICK CONNECT MULTI SYSTEM INSTALLATION SECTION 4 BEFORE INSTALLATION SECTION 5 CHOOSING INSTALLATION SITE SECTION 6 INSTALLATION CLEARANCES SECTION 7 INSTALLATION SECTION 8 GAS PIPING SECTION 9 WATER PIPING SECTION 10...
  • Page 4: General And Safety Information

    Additionally, installation should be performed in Terms: accordance with all relevant requirements of the Gas a. Andrews Water Heaters accepts no liability for any Supplier, Local Authority and recommendations of the damage resulting from failing to accurately follow the British Standards and Codes of Practice detailed below.
  • Page 5 GENERAL SAFETY INFORMATION EFFECTIVENESS IN COMBATING Andrews Water Heaters have commissioned an LEGIONELLA independent evaluation of their products to investigate their resistance to build-up of Legionella bacteria. Water systems in buildings have been associated with outbreaks of Legionnaires’ Disease, particularly in health...
  • Page 6: Installation Manual

    GENERAL SAFETY INFORMATION Installation Manual GAS WATER HEATER WHX56, LWHX56 (External) WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. Potential dangers from accidents during installation and use are divided into the following three categories.
  • Page 7: Included Accessories

    INCLUDED & OPTIONAL ACCESSORIES The following accessories are included with the unit. Included Accessories Check for any missing items before starting installation. Part Shape Part Shape Q’ty Q’ty Installation Manual Owner's Guide (this document) Tapping Screw The accessories listed below are not Optional Accessories included with the units, but may be necessary for installation.
  • Page 8: Quick Connect Multi System Installation

    QUICK CONNECT MULTI SYSTEM INSTALLATION Quick Connect Multi System Installation • The Quick Connect Multi System allows the installation of two units together utilizing only the Quick Connect Cord. The Quick Connect Cord is 2m. long. Install the two units 470mm-950mm apart at the center to ensure the cord will be able to reach between the units.
  • Page 9: Before Installation

    BEFORE INSTALLATION Before Installation Caution Check the Gas • Check that the rating plate indicates the correct type of gas. Check that the gas supply line is sized for 62.3 kW(or 49.0 kW) for this unit. Check the Power • The power supply required is 230V AC, at 50Hz.
  • Page 10: Choosing Installation Site

    CHOOSING AN INSTALLATION SITE Choosing Installation Site * Locate the appliance in an area where leakage from the unit or connections will not result in damage to the area adjacent to the appliance or to the lower floors of the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance.
  • Page 11: Installation Clearances

    INSTALLATION CLEARANCES Installation Clearances Caution Before installing, check for the following: Install in accordance with relevant building and mechanical codes, as well as any local, state or national regulations. Item Check Illustration • Maintain the following clearances from both combustible and 600 mm non-combustible materials.
  • Page 12: Installation

    INSTALLATION Installation Securing to the wall • The weight of the device will be applied to the wall. If the strength of the wall is not suffi- cient, reinforcement must be done to prevent the transfer of vibration. • Do not drop or apply unnecessary force to the device when installing. Internal parts may be damaged and may become highly dangerous.
  • Page 13: Gas Piping

    GAS PIPING Gas Piping Follow the instructions from the gas supplier. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 35 mbar. The Appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 35 mbar.
  • Page 14: Water Piping

    If the water heater is installed in a closed water supply system, such as one having a backflow preventer in the cold water supply line, means shall be provided to control thermal expansion. Contact ANDREWS WATER HEATERS TECHNICAL DEPARTMENT FOR ADVICE.
  • Page 15: Electrical Wiring

    ELECTRICAL WIRING Consult a qualified electrician Electrical Wiring for the electrical work. Do not connect electrical power to the unit until all electrical wiring has been completed. i) "A means of disconnection from the supply mains having a contact separation in all poles must be pro- vided to allow for full disconnection".
  • Page 16 ELECTRICAL WIRING Remote Controller • Applicable Model WHX56, LWHX56 Remote controller Main RC-7508M * Up to three remote controllers can be connected. Additional remote controllers cannot be con- nected by themselves. The remote controller must be installed in accordance with the installation manual enclosed in the •...
  • Page 17: Commissioning

    COMMISSIONING The installer should test operate the unit, explain to Commissioning the customer how to use the unit, and give the owner this manual before leaving the installation NOTE: The appliance has been factory set and no adjustment is necessary. •...
  • Page 18: Lighting Instructions

    COMMISSIONING Lighting Instructions This water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner. 1. Read the safety information in the installation manual or on the front of the water heater. 2.
  • Page 19: Dimensions

    DIMENSIONS Dimensions (unit: mm) WHX56, LWHX56 (VIEW FROM TOP) GAS INLET (3/4) HOT WATER OUTLET (3/4) COLD WATER INLET (3/4) WIRING THROUGHWAYS FLUE COLLAR UPPER WALL MOUNT BRACKETS AIR INLET LOWER WALL MOUNT BRACKETS BOTTOM BOTTOM OF CASE OF CASE...
  • Page 20: Wiring Diagram

    WIRING DIAGRAM Wiring Diagram (WHX56, LWHX56 ) (UN-USED) BURNER THERMISTOR (VACANT CONNECTOR) AIRFLOW CHANGE -OVER CONNECTOR (VACANT CONNECTOR) (Pulse) MAIN WATER (VCC) (GND) FLOW SENSOR <CN102> <CN63> <CN89> 1 2 3 4 1 2 3 4 (Pulse) BYPASS WATER FLOW...
  • Page 21: Remote Controller Installation

    REMOE CONTROLLER INSTALLATION For Installers: Remote Controller Installation Manual Read this installation guide carefully before carrying out installation. Model Number: RC-7508M Note Do not connect power to the water heater before the remote controller has been properly installed. Accessories Part Shape Part Shape...
  • Page 22: Servicing

    Do not use reconditioned or copy parts that have not been clearly authorised by Andrews Water Heaters. Before commencing with a service or replacement of parts the boiler should be isolated from the electrical supply and water supply and the gas supply should be turned off at the gas service cock.
  • Page 23: Disassembly

    DISASSEMBLY (2) Remove the 2 locking screws of the transformer, then pull out. 2. Removing the electric board (1) Remove the locking screws at the top and bottom and ground screw, then pull board out. 3. Removing the manifold • Remove the electric board and fixing plate of the ground-fault circuit interrupter in advance.
  • Page 24 DISASSEMBLY 4 manifold locking screws. (3) Pull up and remove the manifold. 4. Removing the hot-water supply fan • Remove the electric board, manifold and intake gas pipe in advance. (1) Remove the 3 fan locking screws, then pull out.
  • Page 25 DISASSEMBLY (2) Pull out the fan motor. 5. Removing the gas electromagnetic valve block • Remove the electric board and manifold in advance. (1) Remove the gas electromagnetic valve locking screw. (2) Pull up the gas electromagnetic valve to the upper section and remove it.
  • Page 26 DISASSEMBLY 6. Removing the mixing tube block • Remove the electric board and connectors in advance. (1) Remove the locking screw of the intake water pipe and the locking quick fastener of water flow sensor set 3 of the heat exchanger, then pull out the intake water pipe.
  • Page 27 DISASSEMBLY (4) Pull up the mixing tube block to the upper section and remove it. 7. Removing the heat exchanger • Remove the electric board, manifold, mixing tube block and connectors in advance. (1) Remove the 3 locking screws at the bottom of the burner case.
  • Page 28: Servicing Parts List

    SERVICING PARTS LIST Servicing parts lists External outfitting LWHX56AD...
  • Page 29 SERVICING PARTS LIST External outfitting WHX56AD Part e l i i o j c i t l l o Cross recessed truss type3 EVERTIGHT tapping screw with PW 4X12 SAB6510 l l o l l o Cross recessed round-head collar type3 EVERTIGHT tupping screw 4X12 SAD6453...
  • Page 30 SERVICING PARTS LIST Combustion unit and gas route WHX56AD...
  • Page 31 SERVICING PARTS LIST Combustion unit and gas route WHX56AD Part x i f i o j o f i 1< > o f i 1< > O-ring S-38 SAD6372 o f i o f i o f i o f i O-ring P25.5 SAB1512 t t i...
  • Page 32 SERVICING PARTS LIST Hot-water feed route WHX56AD...
  • Page 33 SERVICING PARTS LIST Hot-water feed route WHX56AD (Thermal fuse rounding procedure) (Front side view) (Rear side view) Freeze preventive heater Thermal fuse fastener Thermal fuse 1.Beginning of roll Thermal fuse fastener Heat exchanger SET...
  • Page 34 SERVICING PARTS LIST Hot-water feed route WHX56AD LWHX56 Part t s i O-ring P4C 1323709 t s i O-ring P20C 3059502 O-ring P22C 7573308 t s i l n i t s i c i t O-ring P12.5C 3359808 l n i O-ring P16C 3223302 t t i...
  • Page 35 SERVICING PARTS LIST Electronic control unit WHX56AD...
  • Page 36 SERVICING PARTS LIST Electronic control unit WHX56AD Part...
  • Page 37 SERVICING PARTS LIST Remote controller and Attached set WHX56AD Optional Accessories Remote controller (RC-7508M) Attached set <Special part> Special part Special part no. Owner's Guide installation manual...
  • Page 38 SERVICING PARTS LIST Remote controller and Attached set WHX56AD Part Oar plug 6X25 6339000 s ' r l l a...
  • Page 39: Specifications

    SPECIFICATIONS & PERFORMANCE Specifications Item Specification Model Name WHX56 LWHX56 Type Installation External, Wall Hanging Power Vented Air Supply/Exhaust Ignition Direct Ignition Minimum Pressure for Maximum flow 2.0 bar Minimum Flow Rate 2.5 L/min. Dimensions 61.5 cm(Height) x 46.4 cm(Width) x 24 cm(Depth)
  • Page 40 Sales: Baxi Commercial Division 0845 070 1056 Wood Lane, Erdington, Birmingham B24 9QP Technical: Email: andrews@baxigroup.com 0845 070 1057 www.andrewswaterheaters.co.uk...

This manual is also suitable for:

Lwhx56Whx42Lwhx42

Comments to this Manuals

Symbols: 0
Latest comments: