Installation and Servicing Envirosorb 5
TABLE OF CONTENTS I NTRO DUCT I O N 1 Instructions guidance .........................................................................................................................3 1.1 1.2 1.3 1.4 2 Appliance description .........................................................................................................................3 2.1 2.2 2.3 2.4 2.5 3 Safety devices ....................................................................................................... 3 Data label .......
TABLE OF CONTENTS MAI NTE NAN C E 15 Trouble-shooting ..............................................................................................................................18 15.1 15.2 16 Servicing ..........................................................................................................................................23 16.1 16.2 -2- Fault diagnosis ..................................................................................................... 18 Fault codes .............
INTRODUCTION INTRODUCTION 1 Instructions guidance 1.1 Product documentation The instructions are an integral part of the appliance and must be handed to the user on completion of the installation in order to comply with the current regulation. • Carefully read the manual, to understand all the information to enable safe installation, use and servicing. No liability can be accepted in the event of damage for not complying with the guidance in this instruction manual.
INTRODUCTION 2.2 Data label The data label certifies the country where the appliance is intended to be installed.
INTRODUCTION 2.4 Concept of operation A heat pump (HP) is a thermodynamic machine which transfers heat from one location to another. To do so, it employs the characteristics of a refrigerant fluid. The system is composed of the following circuits: - The refrigeration circuit which transfers heat to the water circuit following the evaporation, compression, condensation and expansion of the fluid.
INTRODUCTION 2.
INTRODUCTION 3 R410A Refrigerant Safety instructions and regulations 3.1 e Safety instructions Incorrect installation can cause electric shock or appliance damage. • Never disable security devices and do not try to adjust them. • Be sure to consider the following handling techniques and precautions: b Important: any action carried out on the refrigerant circuit must be performed by qualified personnel. • Use only R410A refrigerant. b Evacuating refrigerant into the atmosphere is prohibited.
INTRODUCTION 3.2 3.2.1 Regulations 4 Statutory requirements IMPORTANT Recycling i Where no British Standards exists, materials and equipment should be fit for their purpose and of suitable quality and workmanship. The installation of this appliance must be carried out by a competent person in accordance the rules in force in the countries of destination. 4.
TECHNICAL DATA TECHNICAL DATA 5 Envirosorb 5 Description Unit Envirosorb 5 Min. operational range (in heating) °C -7 Max. operational range (in heating) °C 35 Description Unit Envirosorb 5 V/Hz 1/N/PE 230V 50Hz Electrical Supply voltage/frequency Specifications, with radiators (flow : 45°C, return : 40°C, outside dry temperature (wet) 7 (6)°C) Fuse (x2) Heating output 4.41 Maximum absorbed power (P max) kW 1.45 kW 1.46 kW 1.48 A 6.
INSTALLATION INSTALLATION • Ensure that the appliance is protected from water and from snow. i • Do not expose the heat pump to corrosive or dusty atmospheres (near to dirt roads, for example). 6 All the drawings dimensions are shown in mm. • Do not place near to stale air extraction fans. Appliance location • Allow room for electricity cables (high and low voltage). • Explain these requirements to the appliance user. 6.1 6.1.1 Location 6.1.
INSTALLATION 6.2 Clearances 7 Appliance installation b 7.1 Do not connect the heat pump directly to a heating circuit. The Heat pump must be connected to the Hydraulic module. Scope of delivery 2.1 2.2 2 2.3 2.4 2.5 3 3.1 • Respect the minimum dimensions shown in the drawing above in order to ensure a correct air flow and to facilitate maintenance operations. 3.2 1 • Make sure that the available space is sufficient for the installation of the water system piping. Key 1 Heat pump (x1) 2 2.1 2.
INSTALLATION 7.2 Recommendations before installing Installation pipework must be designed and installed to ensure venting of air from the system is possible. b 3 Ensure that the water flow rate of the water circuit corresponds to the nominal water flow rate of the appliance (see ¨Technical data¨ chapter).
INSTALLATION b i Warning! Do not lean the appliance more than 45° during transportation as this may damage the refrigeration circuit which could lead to a complete system failure. 3 Washer • Place the heat pump on the 4 anti-vibration pads (1). • Secure the heat pump to the anti-vibration pads (1) using washers (3) and nuts (2). We recommend that you move the appliance with a trolley or with suitable handling equipment.
INSTALLATION 9 • Check that there are no leaks. Repair if necessary. Hydraulic connection • Take care to clean the pipes before assembly removing any debris or burrs. Grease and oils may need to be removed they are not possible to remove by cleansing and flushing. Foreign bodies in the system may enter the appliance and interrupt its operation. • Do not use any solvent products, due to the risk of damaging the circuit. • Insulate all exposed pipework.
INSTALLATION Electrical components have been tested to meet the equivalent requirements of BSEN 7671 and the BEAB regulations. The cables connecting the switchboard and the heat pump must be: - Suitable for a fixed installation. - weather resistant. - equipped with wires adapted to appliance’s power rating. 11.3 e Electrical wiring Insert the Ebus 24V cable and 230V power cable in different casings.
INSTALLATION 11.
INSTALLATION • Insert the other end of the hose (3) into the container (4) in order to recover any residual brine during the filling of the circuit. 12 Commissioning i At the time of commissioning, complete all relevant sections of the Benchmark Checklist located on the inside back pages of this document • Using a flat wrench (2), open the trap (1) a ¼ turn. • In order to drain the glycol circuit after filling, use a fill pump. • Check that the differential breaker is installed.
INSTALLATION 13 Specific adjustment 13.2 13.1 The heat pump is designed to operate with a minimum flow of 750 l / h. If the flow is less than 500 l / h, the heat pump will stop and the boiler will begin to function. Heating comfort will always be guaranteed, but energy saving will be compromised. Venting the HP circuit The venting of the HP circuit allows you to purge any air in the HP circuit.
INSTALLATION 14 User information At the end of the installation, the installer must: - explain the operation of the appliance and its safety devices to the user, if necessary provide a demonstration and answer any questions; - hand over to the user all the required documentation, - fill in the documents where necessary; - advise the user of the precautions necessary to prevent damage to the system, appliance and the building; - remind the user to service the appliance annually.
INSTALLATION MAINTENANCE i Any work carried out on the refrigerant circuit must be conducted by qualified engineers. The faults described in this chapter require the services of a qualified professional and, if necessary, a Glow-worm Groupservice engineer. 15 Trouble-shooting 15.1 Fault diagnosis The following checks should be performed before proceeding onto specific diagnostics: - Make sure that the electricity supply has not been interrupted and that the appliance is connected correctly.
MAINTENANCE Fault codes Description 526 Evaporation/condensation temperature sensor failure 528 Plate to plate heat exchanger temperature sensor failure The brine circuit flow is too low (<500 l/h) . 532 Blocking failure if produced more than 3 times. Cause Solution The sensor is defective or is not correctly connected to the main PCB. Check the sensor’s connections. Check that the position and the operation of the sensor are correct. Check the sensor’s resistance.
MAINTENANCE Fault codes Description Cause There is an excess or a lack of refrigerant. The pressure switch is defective. 537 The compressor discharge pressure is too high (> 42 bars). Blocking failure 539 The pressure of the low pressure circuit is too low in heating mode (> 4.5 bars). Blocking failure if produced more than 4 times. The pressure switch contact is insufficient. The cables are defective. Pre-expansion in the liquid line (load loss) The water flow sensor is defective.
MAINTENANCE Fault codes Description Cause Solution Measure the air and water’s ΔT. If it is very low (<2K), lack of fluid may be the cause (loss of heat output). Measure the real overheating (must be <7K in heating mode). Measure the electrical current with an ammeter. If the current is below 4.5 amps, the cause may be a lack of An excess or a lack of refrigerant. fluid. Check the pressure with a monometer. Check that there are no leaks, repair them if necessary. Adjust the amount of refrigerant.
MAINTENANCE Fault codes 584 Description The compressor discharge temperature does not rise (<5k in 2 minutes). Cause Solution Failure in compressor power supply. Check the compressor’s connections. Check the condition of the compressor’s cables. Check the compressor’s 230 V power supply at the main PCB. Check that the compressor’s electrical resistance is working properly. Replace the compressor, make sure there are no leaks. Add oil to the compressor if necessary.
MAINTENANCE Status Description Status Description 34 Degassing of pump (20s OFF). 35 Failure of current to the motor’s electronic expansion valve (blocking failure). 36 The 4-way cycle inversion valve is in the cooling position for 5 seconds. 37 Failure of compressor output temperature: does not surpass 2K upon start-up of compressor (blocking failure after 3 attempts). 38 i 40 Flow rate fault (blocking fault after 3 attempts).
MAINTENANCE b Key 1 Hydraulic circuit venting valve 2 Draining hose IMPORTANT: any action carried out on the refrigerant circuit must be performed by qualified authorised personnel. The refrigerant fluid contains gases that, when released into the atmosphere, may affect the environment by depleting the ozone layer, contributing to the greenhouse effect and an increase in temperature.
AIR TO WATER HEAT PUMP COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the heat pump and associated equipment as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.
Service Record It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. Always use the manufacturer’s specified spare part when replacing controls. Service 1 Date: Service 2 Date: Engineer Name: Engineer Name: Company Name: Company Name: Telephone No.
Subject to engineering changes 0020111744_00 - 09/10 GLOW-WORM Nottingham Road, Belper, Derbyshire. DE56 1JT www.glow-worm.co.uk Because of our constant endeavour for improvement, details may vary slightly from those shown in these instructions.
