Johnson & Starley SGT 30 G Installation And User Instructions Manual

Hot water storage heaters

Advertisement

Quick Links

MODELS
SGT 30 G
SGT 40 G
INSTALLATION - AND USER
INSTRUCTIONS
UNITED KINGDOM / IRELAND
HOT WATER STORAGE HEATERS

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SGT 30 G and is the answer not in the manual?

Questions and answers

Summary of Contents for Johnson & Starley SGT 30 G

  • Page 1 MODELS SGT 30 G SGT 40 G INSTALLATION - AND USER INSTRUCTIONS UNITED KINGDOM / IRELAND HOT WATER STORAGE HEATERS...
  • Page 2 Read these installation instructions first before installing the appliance. Carefully read the user instructions before igniting the appliance. Failure to follow these instructions may lead to risk of explosion and/or fire and could cause material damage and/or bodily harm. Installation and commisioning should be carried out by a qualified competent installer. The type of gas and the value at which the appliance is set standard in the factory are registered on the rating plate.
  • Page 3: Table Of Contents

    CONTENTS PAGE GENERAL Description ...................... 4 Technical safety equipment ................4 1.2.1 Gas control valve .................... 4 Technical description ..................6 1.3.1 Dimensions ..................... 6 1.3.2 Technical description ..................8 FOR THE INSTALLER Installation instructions ..................9 2.1.1 Installation ....................... 9 2.1.2 Water circulation system ................
  • Page 4: General Description

    1. GENERAL thermo-electrical pilot flame safeguard, pilot flame pressure regulator, burner Description of the pressure regulator, a control thermostat appliance (adjustable between 30°C and 70°C) and a safety thermostat (82°C). This gas control block with its simple and se- Construction of the water heater is in cure control respectively switches the accordance with the European gas supply to the main burner on or off.
  • Page 5 AOS 0563 Fig. 1 - Cross-section of the heater Cold-water inlet Flue down draught device Outer casting Verbrandingsluchttoevoer 10) Flue baffle Hot-water outlet 11) Sacrificial anode Insulation 12) Drain valve Flue tube 13) Burner Glass lined tank Gas control valve...
  • Page 6: Technical Description

    Technical description 1.3.1 Dimensions The diameter of the flue-gas duct and the combustion-air supply duct is 80 mm (INT). The indicated ducts through roof and exterior wall have a 80-mm (INT) connection. Dim. SGT 30 SGT 40 1192 1455 1012 1275 1045 1310...
  • Page 7 IMD 0011 Fig. 2 - Dimensions...
  • Page 8: Technical Description

    1.3.2 Technical description Toestel categorie: I DESCRIPTION Unit SGT 30 SGT 40 DATA NATURAL GAS G20 - 20 mbar: Nominal load (gross) Nominal capacity Supply pressure mbar Burner pressure mbar 12,5 12,5 Gas consumption Diameter main orifice 2,30 2,40 Diameter pilot orifice 2 x 0,27 2 x 0,27 Heating time ∆T= 45 K...
  • Page 9: Installation Instructions

    2. FOR THE INSTALLER which can cause rapid failure of thermocouples, burners and storage Installation instructions tanks if they are drawn into the combustion air supply. This water heater must be fitted in a Therefore if this water heater will be location which will permit the provision used to supply hot water to: of an approved flue system and ade-...
  • Page 10 See Figure 3. STATE WATER HEATERS water heaters are tested to a maximum pressure of 12 bar and a maximum working pressure of 8 bar. IMD 0469 Figure 3 - Connection diagram (unvented system) Manual gas valve Gas supply Stop valve Hot water delivery Expansion vessel Cold water inlet...
  • Page 11: Gas Connection

    the current building regulations should Exterior-wall duct (see Fig. 4). be used. Installation should be carried Type: M2000 MDV80 out generally as shown on the following Wl = 600 diagram. Piping material: thick/thin-walled aluminium with lip-ring sealing. 2.1.3 Gas connection Pipe diameter: Ø...
  • Page 12 Roof duct (see Figs. 5 and 6). SGT 30 / SGT 40 Type: Pressure balance Ø 80 VR EW; Size Minimum Maximum supplier Burgerhout-Assen, art. no.: 0700GT-71. 7000 Pressure balance Ø 80 VR DW, supplier; Burgerhout-Assen, art. no.: 2000 0700GT-63. 1,5 x B Piping material: thick/thin-walled aluminium with lip-ring sealing.
  • Page 13 Size roof duct (see Fig. 7). Type: Pressure balance Ø 80 VR EW, supplier;Burgerhout-Assen, art. no.: 0700GT-71. Pressure balance Ø 80 VR DW, supplier; Burgerhout-Assen, art. no.: 0700GT-63. Piping material: thick/thin-walled aluminium with lip-ring sealing. Pipe diameter: Ø 80 mm. Bend: 45°...
  • Page 14: Commissioning

    Commissioning may be adjusted (see also ‘Adjusting the pilot flame’). 5. Turn the control knob to the ‘ON’ 2.2.1 Filling the water heater ( ) position. 1. Close the drain tap. 6. Turn the temperature-control knob 2. Open the cold water tap to the water to the desired position, preferably to heater and open all taps where hot position 4 (approx.
  • Page 15: Putting Out Of Operation

    Putting out of operation of cold water that is added is equal to the amount of hot water used. The gas For a short period: control block automatically regulates the 1. Turn back the control knob to ‘PILOT gas supply. The main burner will ignite FLAME’...
  • Page 16: Setting The Nominal Heat Input

    Setting the nominal 4. Turn off the appliance and remove the manometer hose and replace the heat input adjusting screw. 5. Replace the thermostat control knob. The gas control has been factory 6. Put the appliance into operation. preset to the water heater nominal heat input.
  • Page 17: Cleaning

    Replacement is necessary if the anode has dissolved for more than 60%. If the anode is not replaced in time, this may negatively affect the life of the tank. To replace, follow these steps: 1. Shut off the water tap in the cold- water supply line.
  • Page 18 AOS 0572 Fig. 13 – Removing the burner, pilot- flame pipe and thermocouple AOS 0276 Fig. 14 – Removing the burner- chamber guard AOS 0278 Fig. 15 – Removing the burner...
  • Page 19: Decalcification

    2.10.1 Safety thermostat pilot flame from the bracket. 9. Clean the main burner with a soft All devices are equipped with a safety brush. thermostat, which shuts off the gas 10. Check the pilot-flame burner and supply in case of too high a water clean if necessary.
  • Page 20: Gas Smell

    2.11 Gas smell Warning Immediately shut the main gas tap. Do not light any fire or switch on any lights, do not use any electrical switches or alarm bells. Open windows. Thoroughly inspect all gas connections and, if the gas smell persists, alert the local gas company and/or your installer.
  • Page 21: For The User

    3. FOR THE USER pressure (with a maximum of 8 bar). The amount of cold water that is added is equal to the amount of hot water Commissioning used. The gas control block automatically regulates the gas supply. Warning The main burner will ignite as soon as a Installing and commissioning (for the reduction in water temperature is first time) of this water heater should...
  • Page 22: Maintenance

    3.1.5 Maintenance The inlet combination has to be tested regularly by relieving it (via the relief button). The water has to flow out in a forceful jet. Check whether the discharge pipe is open. We recommend a service agreement on an annual basis.
  • Page 23: Fault Overview

    Fault overview Fault Possible cause Corrective action Gas smell If you smell gas you should immediately close the main gas tap you should not light any fire or switch on light, electrical switches or bells. Open windows and immediately contact your installer or the local gas company.
  • Page 24 Fault Possible cause Corrective action Insufficient Safety thermostat has Set the temperature regulator at a hot water, or closed the gas supply lower temperature and reignite the none at all because the water pilot burner. temperature was too high Hot water storage empty Reduce the consumption of hot water.
  • Page 25: Warranty

    4. WARRANTY Conditions of installation (CERTIFICATE) and use The warranty referred to in Articles 1 In order to register your warranty, and 2 only apply if the following please fill in the enclosed warranty conditions are met: card and return it to us. We will then a) that the boiler is installed according send you a warranty certificate.
  • Page 26 This warranty applies to the following less than 150 µS and/or the models: hardness of the water is less than SGT 30 G 6°DH; SGT 40 G e) if unfiltered, recirculated water flows through or is stored in the boiler;...
  • Page 28 0307 995 R0...

This manual is also suitable for:

Sgt 40 g

Table of Contents