Dimplex LA 6 MI Installation Instructions Manual
La mi series inverter air-to-water heat pump systems packages
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Also See for LA 6 MI:
- Operating instructions manual (52 pages) ,
- Installation & technical manual (63 pages)
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Summary of Contents for Dimplex LA 6 MI
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Page 1: Installation Instructions
LA 6 MI LA 9 MI LA 12 MI LA 16 MI Installation Instructions For LA MI inverter air-to-water heat pump systems packages 8/60379/0... -
Page 2: Supporting Documents
The installation of an Air-eau heat pump should only be carried out by a suitably trained and competent person who is approved by Dimplex. All installations should be in accordance with this document and the planning manual to ensure efficient operation. -
Page 3: Table Of Contents
Contents Supporting documents ................................. 2 Section 1: Scope of delivery and handling ..........................5 Table 1: Items supplied with the LA MI ..........................5 Product handling .................................. 5 Section 2: Pre-installation checks ............................. 6 Intended Use ..................................6 Section 3: Installation considerations ............................7 Installation location ................................ - Page 4 Section 9: Technical specification of the LA MI range ......................27 Performance Data ................................28 Performance Data ................................29 Product Dimensions LA 6 MI and LA 9 MI .......................... 30 Product Dimensions LA 12 MI and LA 16 MI ........................31 Section 10: Annual System Health checks ..........................32 Heat pump ..................................
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Page 5: Section 1: Scope Of Delivery And Handling
Section 1: Scope of delivery and handling Product handling Description Protective grommet to prevent damage The heat pump is large and heavy. The 2 + 3 cables (LA 12 / 16 MI handling of the unit should only be done only) using lifting tools and sling which can be fitted into sleeves at the unit‟s base. -
Page 6: Section 2: Pre-Installation Checks
This device is only intended for use as specified by match the Domestic hot water demand and also Dimplex as detailed within this technical manual. The air- match the heat pump. to-water heat pump is to be used exclusively for the The method of communicating a heating demand heating of heating water in a closed circuit. -
Page 7: Section 3: Installation Considerations
Section 3: Installation considerations Fixing of the heat pump The installation of an air source heat pump should be carried out by a Dimplex Accredited The heat pump should be fixed on two flat, horizontal and installer. solid hard surfaces such as concrete pads that are capable of taking the unit‟s weight and draining the... -
Page 8: Minimum Ventilation Clearances
Minimum Ventilation clearances Wall mounting For adequate air flow the distances shown in Figure 3 If the heat pump is to be wall mounted a condensate must be observed. The free field indicates that no object collection tray (supplied by the installer) should be fixed will disrupt the air flow out of the unit. -
Page 9: Section 4: Heating System Connection
The installation of an air source heat operation due to increased pumping losses. pump must be carried out by a Dimplex Qualified installer. For systems in which the heating water flow can be shut... -
Page 10: Frost Protection
Condensate During normal operation the heat pump will remove water vapour from the air. The condensate will run down the evaporator into the condensate tray where it will drain out of the unit. Defrosting takes place up to 16 times per day, with up to 3 litres of condensed water being produced each time. -
Page 11: Filling The System
Figure 8: Isolation valve and filter supplied in LA MI Figure 11: Pressure relief valve packages to be fitted to the heat pump return. Expansion vessel sizing The heat pump comes with an expansion vessel already installed as shown in the „Performance data table‟. Depending upon the specific system the installer must determine if a second expansion vessel is required. -
Page 12: Controlling Dhw Temperature
Controlling DHW temperature The cylinder temperature is controlled via an NTC2 sensor. For safety reasons the heat pump controller also checks for continuity from the DHW thermostat. The temperature regulation thermostat and high limit stat are wired in series. To keep the contacts closed on the regulation stat the dial must be set to maximum. -
Page 13: Section 5: Electrical Connection
Section 5: Electrical Connection Depending upon the installation the heat pump could When connecting the heat pump to have the following cables that it will be necessary to the power supply, the relevant EN route from the heat pump into the property. standards must be complied with. -
Page 14: Connection Of The Power Supply To The Heat Pump
Connection of the power supply to the Heat pump LA 6 and 9 MI LA 12 and 16 MI Figure 15: Connection of the power supply cable Main power supply cable The power connection of the heat pump is made via a The maximum current carried in the supply cable standard 3-core cable. - Page 15 DHW immersion switched DHW immersion switched by heat pump by a relay controlled by the heat pump or no DHW immersion installed LA 6 MI LA 9 MI RCCD 1 RCCD 2...
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Page 16: Inline Flow Boiler
Inline flow boiler Domestic hot water immersion The heat pump is capable of switching a 3kW immersion directly without the need for an additional If the inline flow boiler is not wired in the relay as shown on the standard wiring diagram. frost protection function will not fully function. -
Page 17: Controller Cable
Controller cable The controller cable is connected to the heat pump controller using the two rectangular plug connectors as shown in Figure 18. The cable cannot be extended because this would increase the resistance and correct operation controller cannot guaranteed. The cable is 15m long but 1.5m is required inside the heat pump leaving 13.5m for Figure 20: Terminals of the extension lead and 15m routing to the controller. - Page 18 Figure 21: Heat pump communication connections This can be used to remotely put the heat pump in standby mode upon breaking the connection from an external control device. When in standby the heat pump External controller cable frost protection will still be activated. To enable this function a factory fitted jump lead between terminals 17 and 18 must be removed.
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Page 19: Section 6: Installation Of The Controller
Section 6: Installation of the controller The controller should be installed: In a place which is away from direct sunlight and high humidity. On a flat surface to prevent warping of the remote controller and damage to the LCD screen. -
Page 20: Section 7: Programming Of The Controller
Section 7: Programming of the controller OFF/ON Standby Button Quiet Operation Indicator OFF/ON Operation LED Inline flow boiler request Indicator OFF/ON Operation Mode Button Force Inline flow boiler Request Indicator OFF/ON Quiet Operation Button Inline flow boiler status (OFF/ON) Inline flow boiler ( Enable / Disable ) Immersion Heater status (OFF/ON) System Set-up Buttons System Set-up mode Indicator OFF/ON... -
Page 21: Timer/Clock Setting Display
Quiet Operation Button Timer/Clock Setting Display The time and day must be set at first power on or after Reduces the noise of the heat pump by approximately a prolonged power outage. The time must also be set 5dbA for the double fan heat pumps and 3dBA for the before the other menus can be accessed. -
Page 22: Setting The Advanced Settings
Setting the Advanced settings 2. Press to scroll through the functions. The special functions can only be set if the Operation LED is OFF. 3. Press to enter the function. 1. Press for 5 seconds to enter the 4. Press to select the desired value. -
Page 23: Setting The Advanced Settings (Continued)
Setting the Advanced settings (continued) 3. Press to enter the function. The special functions can only be set if the Operation LED is OFF. 4. Press to select the desired value. 1. Press for 5 seconds to enter the advanced settings mode. The “SETTING” indicator will 5. -
Page 24: Setting The Advanced Settings
Setting the Advanced settings 2. Press to scroll through the functions. The advanced settings can only be set if the Operation LED is OFF. 3. Press to enter the function. 1. Press for 5 seconds to enter the advanced 4. Press to select the desired value. -
Page 25: Weekly Timer Setting
Figure 23: Weather compensation graph Weekly timer setting Setting the timer Press Press to select the correct day. Press for each of the required days. A hat symbol will be displayed above the selected days. The program number 1 to 6 will then start flashing. It is possible to set 6 programs per day. -
Page 26: Section 8: Setting The System To Work
21. If an extended warranty is required contact the using the suggested settings shown in Table 3. Dimplex after sales department for the correct form. 7. Check the controller is not in “Quiet” mode as this 22. Explain the system to the occupants and leave this will reduce the heat pumps kW output and increase manual and the User guide with them. -
Page 27: Section 9: Technical Specification Of The La Mi Range
Section 9: Technical specification of the LA MI range Component Notes Water Pump Circulates water around the heating circuit. Pressure Gauge Gives the pressure of the water in the heating circuit. Flow Switch Checks the water flow in the heating circuit for efficient and safe operation. Pressure relief valve A safety device that relieves the pressure in the heating circuit if it exceeds 3 bar. -
Page 28: Performance Data
Performance Data Type and order code LA 6 MI LA 9 MI Design Degree of protection according to EN 60 529 for a compact unit or heating element IP 24 IP 24 Installation location Outdoors Outdoors Performance Data Operating temperature limits: Heating water flow / return flow °C... -
Page 29: Performance Data
Performance Data Type and order code LA 12 MI LA 16 MI Design Degree of protection according to EN 60 529 for a compact unit or heating element IP 24 IP 24 Installation location Outdoors Outdoors Performance Data Operating temperature limits: Heating water flow / return flow °C Max. -
Page 30: Product Dimensions La 6 Mi And La 9 Mi
Product Dimensions LA 6 MI and LA 9 MI Page... -
Page 31: Product Dimensions La 12 Mi And La 16 Mi
Product Dimensions LA 12 MI and LA 16 MI Page... -
Page 32: Section 10: Annual System Health Checks
Section 10: Annual System Health checks Hydraulic Any work on the heat pump may only be performed by authorised and qualified Water pressure higher than 1 bar. after-sales service technicians. Pressure relief valve operation is normal. The filter is clear of debris. ... -
Page 33: Section 11: Trouble Shooting For The Installer
Section 11: Trouble shooting for the installer Symptom Cause This is normal during certain atmospheric conditions Heat pump emits mist because the drop in air temperature caused by the heat pump is cold enough for mist to form. If the external temperature is above the HEAT OFF (in advanced settings menu) the heat pump will not operate. -
Page 34: Section 12: Error Codes
Section 12: Error codes Diagnosis Abnormality Protection Abnormality Judgement Primary location to verify display control Indoor/Outdoor capacity 90s after power supply • Indoor/outdoor connection wire unmatched • Indoor/outdoor PCB • Specification and combination table in Catalogue Outdoor compressor Continue for 5 sec. •... - Page 35 Diagnosis Abnormality Protection Abnormality Judgement Primary location to verify display control Pressure switch activate 4 times occurrence within 20 • Pressure switch minutes 4 times occurrence within 20 • Outdoor compressor Outdoor compressor abnormal revolution minutes Outdoor fan motor lock 2 times occurrence within 30 •...
- Page 36 Diagnosis Abnormality Protection Abnormality Judgement Primary location to verify display control Outdoor defrost sensor Continue for 5 sec. • Outdoor defrost sensor (defective or abnormality disconnected) Continue for 5 sec. • Water outlet temperature sensor Indoor water outlet temperature sensor (defective or disconnected) Abnormality Outdoor Current Transformer...
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Page 37: Section 13: Standard Packages
Section 13: Standard packages To assist with the design and installation of a system Dimplex have collated wiring and hydraulic schematics for the following designs: Package 1 and 2 Package 3 Package for space heating only. No hot Heating and Domestic hot water preparation is water cylinder is included. -
Page 38: Suggested Additional Components
An expansion internal vessel is supplied, an addition one may be Expansion vessel required depending upon system volume. Flushing & Filling point / Drain down point Bypass for heating circuit Heat emitters Table 6: Components not supplied by Dimplex but required to complete the installation. Page... -
Page 39: Package 1 And 2 - Plumbing Schematic
5. Connections should be provided so that the system can be flushed of debris, filled and then purged of air 3. When using a Dimplex Ec-Eau cylinder with an Air-Eau without passing debris through the heat pump. heat pump it is not necessary to install a separate 2 port value for G3 compliance. -
Page 40: User"S Guide To An Air-Eau Heat Pump System
If this is not successful you should contact Dimplex customer care for technical support over the phone. If the problem cannot be resolved over the phone you should contact your installer. - Page 41 Adjusting the heat pump Adjusting the central heating The central heating is controlled using the wall mounted thermostat shown below. You should press the large buttons to adjust the room temperature. OFF/ON Standby Button When the unit is ON, the operation LED is lit and the compressor will operate when required.