ESP Varimax I ASHP Bedienungsanleitung

ESP VARIMAX I ASHP

Installation and

Operation Manual

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WARNING!

READ THIS BEFORE

INSTALLING

THE UNIT.

The installation of all un-vented water heating systems above 15 litres

(this includes ESP Hot Water ASHP’s) MUST comply with local area

Building Regulations. It is a legal requirement that the local Building

Control Officer be notified of any proposed installation.

UK regulations require an appropriately sized expansion vessel

(internal or external) to be incorporated, safety devices to prevent the

stored water exceeding 100°C, and pipe work to convey discharged hot

water safely away from the safety devices.

Furthermore, the installation must be carried out by an engineer who

has successfully completed a recognised course in the installation of

un-vented heating systems such as CITB. Failure to fit the unit

correctly and in accordance with regulations may affect its safety,

efficiency and WILL invalidate any guarantee.

THE UNIT MUST BE INSTALLED, COMMISSIONED AND MAINTAINED BY A

COMPETENT INSTALLER IN ACCORDANCE WITH BUILDING REGULATION

G3 (ENGLAND AND WALES), TECHNICAL STANDARD P3 (SCOTLAND) OR

BUILDING REGULATION P5 (NORTHERN IRELAND) AND THE WATER

FITTING REGULATIONS (ENGLAND AND WALES) OR WATER BYELAWS

(SCOTLAND). FOLLOWING INSTALLATION AND COMMISSIONING, THE

OPERATION OF THE UNIT SHOULD BE EXPLAINED TO THE USER AND

THESE INSTRUCTIONS LEFT WITH THEM FOR FUTURE REFERENCE.

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Contents:

1.0 Preface

1.1 Varimax I ASHP Units features

2.0 Safety Precautions

3.0 Varimax I Unit Specifications

3.1 Appearance of the Unit

3.2 Unit Dimensions

4.0 Choosing the right heat pump

4.1 Heat Load Calculation

4.2 Varimax Output Rating

4.3 Emitter systems

5.0 Installation

5.1 Where to use and Where to Site the unit

5.2 Location of the Unit

5.3 Transporting the Unit

5.4 Plumbing Considerations

6.0 Hydraulic Connection

6.1. Expansion vessels

6.2 Flow Switch

6.3 . Flexi Hoses

6.4 Automatic bleed valves

6.5 Transit Bung

6.6 Y-Strainer

6.7 TRVs

6.8 Distribution Water Pump

6.9 Glycol

7.0 Electrical Connection

7.1 Warning Notes

7.2 MCB

7.3 Isolation Switch

7.4 Cable Routing

7.5 Before You Start

7.6 Wiring-in The Unit

8.0 Unit Specifications

9.0 Commissioning

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9.1 Pre-Start Checks

9.2 Switching on the Unit

10.0 UNIT CONTROLLER

10.1 main Interface

10.2 Basic Operation

10.3 Main Menu

10.4 Frequency Control

11.0 Maintenance

11.1 Essential Checks

11.2 Advisory Checks

12.0 Trouble Shooting

12.1 Error Codes

12.2 Simple Faultfinding

13.0 Wiring Diagram

14.0 Guarantee

14.1 Guarantee Terms

15.0 Environmental Information

16.0 Adding a Remote Wired Controller

17.0 Weather Compensation

18.0 Performance

19.0 Parameter List

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1.0 Preface:

This manual includes all the necessary information about installation and

maintenance of the ESP Varimax I inverter driven air source heat pump

(ASHP) unit. Please read this manual carefully before carrying out any

installation or maintenance works on the unit. Please note that, failure to

observe the provisions in this manual will invalidate any warranty on the

unit and may lead to loss and/or damage to people and/or property that

ESP will not be liable.

All ESP ASHPs are covered by the warranty contained in the ESP Terms and

conditions of Business a copy of which will have been provided to you prior

to your purchase.

The Varimax I must only be installed by suitably qualified personnel.

The Varimax I air source water heat pump is a high efficiency, energy

saving and environmentally friendly unit that should be used primarily for

space heating. It can work with any kind of heat emitter unit such fan coil,

radiator, or under floor heating. The Varimax I can also be used to

generate domestic hot water (DHW) for sanitary purpose although ESP

recommend that space heating is achieved with an ASHP and the DHW

requirement be met by an ESP Ecocent unit. PLEASE NOTE that operating

conditions, such as ambient air temperature, required water flow

temperatures, target room temperatures and humidity will influence the

operating efficiency of the unit.

1.1 Features of the Varimax I ASHP:

1. Advanced controls

All user set parameters can be controlled via A PC based controller

that can control several units simultaneously.

2. Attractive appearance

The Varimax I is designed to be attractive and

discrete.

3. Compact design

Our Varimax I units have a built-in water pump

and is a stand-alone unit to make installation

simple and quick.

4. Quiet running

High quality and efficient compressors, fans, water pumps and

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sound insulation combines to ensure a very low running noise of 59

dBa.

5. Heat Exchanger

The Varimax I unit is equipped with a very high efficiency heat

exchanger to deliver exceptional efficiency.

6. Wide operating temperature capability

The Varimax I unit is designed to work effectively and efficiently

down to -15°C ambient air temperature.

2.0 SAFETY PRECAUTIONS

Please note the following important installation and operating

information: Failure to observe these points could lead to loss or

damage to property and/or injury/death of installers/operators and

will invalidate the warranty.

 The unit must only be installed, moved and/or repaired by a

suitably qualified and experienced engineer. If you are in

doubt about who is qualified carry out works on the Varimax

I unit, please call ESP.

 The Unit MUST be properly earthed.

 Do not put fingers or other objects in to the grille covering

the fan and make sure that children do not play close to the

unit. The grills are there for a good reason.

 If you hear abnormal noises, or smell strange odours, coming

from the unit, switch it off immediately and call your installer

or ESP.

 Do NOT install the unit close to any gas fired appliance,

heater or fire.

 Ensure that the base on which the unit is secured is both

large and strong enough to take the weight of the unit

comfortably and will not subside. The base should also be at

least 150mm above the surrounding ground level and you

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should check the base periodically to ensure that there is no

subsidence of the base. In areas prone to flooding, care

should be taken to ensure that the unit is elevated to avoid

flood damage.

 Ensure that you use a suitably rated circuit breaker. If in

doubt, have your electrician call ESP Technical Support.

 Switch off the power before carrying out any cleaning and/or

maintenance.

3.0 VARIMAX I UNIT SPECIFICATIONS

3.1 APPEARANCE OF THE UNIT

Unit

controller

The maximum length of cable for the unit controller is 200 metres

from the heat pump

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3.2 UNIT DIMENSIONS

4.0 Choosing the right heat pump

4.1 Heat Load Calculation

Based on the local climatic conditions, construction features and

insulation levels, your system designer will calculate the heat load

and, therefore, the appropriate unit size for your building. ESP can

provide a heat load calculation that conforms to MIS 3005. For new

builds, the requirements of Part L of The Building Regulations (or

better) for insulation will help ensure that the heat load of the

dwelling is kept to a minimum. For existing buildings, insulation

should be improved as much as possible to minimise the heat load.

4.2 Varimax Output Rating

The Varimax I operating capability rating has been based upon the

test conditions set out in BS EN 14511 and you should choose your

unit according to the rated output. Please NOTE that BS EN 14511

rates unit output based upon 6/7°C ambient air temperature and

you must ensure that you size your unit based upon the conditions

stated in MIS 3005. Performance graphs are included in section 18.

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Make sure that your supplier/installer is familiar with the

requirements of MIS 3005.

The Varimax I unit is MCS Accredited and, if you wish to take

advantage of certain funding that may be available, your unit MUST

BE INSTALLED BY AN MCS ACCREDITED INSTALLER –please consult

your supplier or ESP should you require further clarification.

4.3 Emitter system.

The Heat pump must be matched to a suitable emitter system.

Guidance on choosing a suitable system can be found at

www.microgenerationcertification.org\admin\documents\MIS

3005 Supplementary Information 2 - Heat Emitter Guide v2.0.pdf

where guidance on pipe spacing for UFH systems and sizing

consideration for fan coil units such as the ESP Thermovec and

traditional wet radiators can be found.

5.0 Installation

5.1 Where to use and Where to Site the unit

The Varimax I can be used for domestic or commercial premises

and you should consider the following when choosing an

installation site:

 The unit must be installed in an outdoor location on a

solid base that can carry the weight of the unit. This can be

on the ground, a roof or balcony. If it is to be installed on a

roof or balcony, a steel frame must be used. Please contact

ESP for further details.

 The must be well ventilated but NOT windy.

 The site should be away from direct sunlight and sources

of high heat.

 The unit must be sited 500mm from any obstacles to the

rear and sides. Further information is included in the section

below entitled “Location of Unit”.

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 The unit generates condensate and this should be piped

away from the unit and in to a suitable drain to prevent ice

forming on the area around the unit. This applies to the

water resulting from a defrost cycle.

 There must be enough space around the unit for

plumbing and maintenance works as detailed in the diagram

below.

 The unit MUST be firmly fixed to a secure base using the

rubber anti-vibration feet using suitable fixings. Failure to

secure the unit properly using the rubber feet will mean that

it will fail accreditation.

 To allow precipitation to run off the unit and to ensure

that any water entering the unit can drain through the holes

in the bottom of the unit, allow a 3mm fall left to right as you

look at the fan.

5.2 Location of the Unit

Rear of Unit

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