Envoy 30, 40, 50, 60, & 80 USER'S GUIDE
Contents
1. boiler will not operate However if the water temperature within the boiler falls below 5 C an in built low temperature device will operate the boiler to maintain a water temperature between 5 C and 10 C to prevent freezing of the boiler In the H position will allow the boiler to operate on demand from the time clock or any other external control device The water temperature leaving the boiler will be controlled at approximately 82 C In the L position will allow the boiler to operate on demand from the time clock or any other external control device The water temperature leaving the boiler will be controlled at approximately 60 C When the boiler is only being used to supply domestic hot water and there is no independent hot water temperature control the switch should be set at the IL position which will probably be hot enough to meet most hot water requirements When the control switch is set at the IH position it must be remembered that unless the temperature of the water in the domestic hot water is controlled independently the stored hot water could be at a temperature that could scald i e about 82 C DIGITAL DISPLAY During normal operation of the boiler the following characters will be shown on the display Display not illuminated All power off Gs Power on boiler at standby Heat demand boiler operating at high temperature Heat demand boiler o2. setting at times when it would normally be turned off To ensure that the highest possible efficiency can be obtained from your Envoy boiler an aluminium heat exchanger is used Your installer has therefore been advised that the heating system should be protected by a corrosion inhibitor The products recommended by Potterton are FERNOX COPAL or GRACE DEARBORN SENTINEL X100 Periodical checks will need to be made to ensure that the correct concentration levels are maintained Your installer should provide further information on these aspects CARE OF YOUR BOILER AND SYSTEM DURING THE GUARANTEE PERIOD AND BEYOND 1 Registration of Purchase It is important to register the purchase of your Potterton boiler to ensure you receive prompt and efficient handling in the event your boiler requires attention during the guarantee period To register your guarantee simply complete and detach the Registration of Purchase form enclosed with these instructions It is important to include details of your installer if known and to return the completed form to the Potterton Registration Department During the Guarantee Period In the event of any problems with your system or the operation of your boiler you should first call your installer If there is a fault with the boiler under guarantee which your installer is unable to rectify he will call Potterton Service Operations For 12 months after the date of installation of the boiler or
3. 18 months from the date of manufacture whichever is the shorter Potterton will attend to any manufacturing defect on the appliance only not the system or ancillary controls free of charge for parts and labour subject to there being no misuse or abuse This does not affect your statutory rights Service visits by Potterton Service Operations outside the terms of the boiler guarantee will be charged for both parts and labour at our normal rates for chargeable work During the period of the boiler guarantee Potterton will only be responsible for the costs of work done by them or on their instructions by their Agent We cannot accept any liability for expenditure or work done by other parties without our knowledge and or approval Safety Check Routine Maintenance It is strongly recommended you have your boiler checked annually for safety and to have routine maintenance This should be carried out by a CORGI Registered Installer Service Agent or Potterton Service Operations to comply with the requirements of the Gas Safety Installation and Use Regulations 1994 Boiler Breakdown Insurance We are pleased to offer you the opportunity to protect your investment once your boiler guarantee has expired by the payment of an annual premium You can continue with this insurance for the normal life of your boiler and you will find a special 30 day introductory offer for second year cover together with a card to register your purchase a
4. WV PVILESJUN En THE HEATSAVER Envoy 30 40 50 60 amp 80 USER S GUIDE USER S INSTRUCTIONS It is important that the inner case door of this appliance is not removed for any reason other than for servicing by a qualified service engineer The appliance must not be operated without the inner casing door correctly fitted and forming an adequate seal THIS APPLIANCE IS FOR USE ON NATURAL GAS ONLY IT MUST BE INSTALLED AND SERVICED BY A COMPETENT PERSON AS STATED IN THE GAS SAFETY INSTALLATION AND USE REGULATIONS 1994 If the appliance is installed in compartment do not use for storage purposes and do not obstruct any purpose provided ventilation openings If a gas leak or fault is suspected turn off the appliance and consult your local gas region or service engineer INTRODUCTION The Potterton Envoy is a wall mounted room Out sealed fully automatic gas fired condensing boiler The very high efficiency of this appliance results in Reset button the flue gases cooling to the point where part of their ens Boiler Display moisture content condenses inside the boiler giving control up further heat as it does so This condensate is switch drained to a suitable disposal point through the plastic waste pipe at the lower rear of the boiler Due to the high efficiency and the resulting low flue gas temperature a white plume of condensate will be emitted from the flue outlet terminal This will be partic
5. oiler control switch to the L or H position Character LI or Hlas appropriate will be displayed After a short period the boiler will light Set the time control and any thermostats where fitted to their desired settings NOTE When the boiler is first lit there may be a slight smell This will disappear with use TO SHUT THE BOILER OFF Set the boiler control switch to mid position i e U or switch the external programmer to the OFF position FOR LONGER SHUT DOWN PERIODS Switch the boiler control switch to mid position i e u isolate the electrical supply at the isolating switch or pull the plug out of its socket NOTE The boiler IS fitted with an internal low water temperature device to prevent it from freezing during cold weather Should the water temperature in the boiler fall below 5 C the boiler will operate to maintain a system water temperature between 5 C and 1 0 C It is therefore important during cold weather not to isolate the boiler from the electrical supply but to shut OFF the boiler only by turning OFF the programmer or setting the boiler control switch to the mid position i e D IMPORTANT Gas and electricity are required to operate your boiler Its performance will not be affected by normal variation in gas or electricity supply but a gas or electricity failure will put the boiler out of operation In the case of electricity failure the boile
6. perating at low temperature Boiler operating but up to temperature Boiler re start delayed to prevent rapid cycling Main burner off pump running to transfer remaining heat from boiler into the system Flashing boiler at lock out To assist the service engineer a fault diagnostic system is incorporated within the electronic control If a fault should develop within the boiler upto 30 different characters can be displayed thereby directing the engineer to the precise area of the problem Illuminated Character lluminated Character H lluminated Character iL Illuminated Character h Illuminated Character E Illuminated Character c llluminated Character F RESET BUTTON Pressing the reset button will allow the control to be reset and the boiler restarted should a lockout condition have occurred OTHER CONTROLS A Potterton Electronic Programmer or other type of clock may have been fitted in your system together with room and or cylinder thermostats Full instructions on the use of these controls should be supplied with them TO LIGHT 1 Ensure that the boiler control switch is set to the mid position i e D 2 Switch ON the main electricity supply Character ms w will be displayed 3 Ensure the electronic programmer or other time control if fitted is in an ON period Proceed as follows Switch b
7. r will automatically re start when the supply is restored provided that the time clock and or thermostats are in an ON position In the event of your boiler not working there are several checks you should carry out before calling in a service engineer as this could save you unnecessary expense 1 Check that the gas electricity and water are all turned on at the main supply 2 Check that the time control if fitted is in an ON period 3 Check that all thermostats in the system are not at low settings 4 Ifthe character F is shown flashing on the display a lockout condition is indicated due to either to the burner failing to light during a start sequence or a high temperature being recorded To relight the boiler press the reset button adjacent to the display and the boiler will go through the restart sequence If the character returns to the display consult your local Gas Region or Service Engineer Having checked these points run through the lighting procedure once more and if the boiler still fails to light call in your local service engineer CARE OF YOUR BOILER AND SYSTEM Annual skilled servicing is required to keep your boiler operating safely and efficiently throughout its long working life It is also advisable to have the whole heating system checked over annually so that excessive costs are not incurred by such things as lair temperature thermostats or radiator valves getting out of adjustment Se
8. rvicing should be carried out by a trained service engineer and it is suggested that an annual contract be arranged Contact your local Potterton regional service office The outside of the boiler casing can be wiped when necessary using a damp cloth to remove finger marks etc Do not use an abrasive material ADDITIONAL FROST PRECAUTIONS Your boiler is fitted with a device to protect it from freezing However since this device is located within the boiler there may be some pipework etc more vulnerable to frost and additional protection will be required Various methods can be used 1 Insulation of pipework etc taking care not to impede any ventilation supply 2 Completely draining the water system if not in use for long periods On a sealed system draining and refilling must be carried out by a competent person e g your service engineer NOTE Although the system can be emptied using the drain off taps installed in the pipework around the system to empty the boiler it is necessary to remove the drain off cap positioned within the boiler case This operation is best left to your service engineer 3 Having an additional low limit thermostat fitted Seek advice from your installer NOTE Frost protection devices cannot operate if the boiler is completely shut down and the electricity supply turned off Where there is vulnerable pipework and no additional protection is provided it may be necessary to run the boiler at the low
9. s part of the User Pack supplied with your boiler If you have not been handed a Registration Card Optional 2nd Year Breakdown Insurance Offer please contact the Potterton Registration Department for a copy by telephoning 0181 944 4972 Back Page
10. ularly evident during periods of low outdoor temperatures Annual skilled servicing is required to maintain the safe and efficient operation of your boiler throughout its long working life Further information on this subject is given at a later stage ELECTRICITY SUPPLY WARNING This appliance must be earthed Connection shall be made to a 240V 5OHz supply The appliance must be protected by a 3 amp fuse SAFETY The boiler should have the following minimum clearances for safety and maintenance 610mm 2ft at the front of the boiler 5mm 0 2in each side 100mm 4in at the bottom 140mm 5 5in at the top Flammable materials must not be stored in close proximity to the boiler Ensure that the flue terminal outside the house does not become obstructed particularly by foliage SYSTEM CONTROLS Because this is a high efficiency appliance Potterton recommend the use of an external control system which independently controls the temperatures of heating and hot water A Potterton Electronic Programmer or other type of clock may have been fitted together with room and or cylinder thermostats Full instructions on the use of these controls should be supplied with them BOILER CONTROLS All boiler mounted user controls are situated in the front of the boiler control box behind the hinged door These are BOILER CONTROL SWITCH In the mid i e G position the boiler is at STANDBY and under normal conditions the
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