Dimplex Heat Pump LI AS User Manual

heat pumps  
using nature’s energy  
INDOOR AIR SOURCE HEAT PUMPS  
LI MS / LI AS  
EVEN COLD AIR IS FULL OF ENERGY  
Drawing freely available heat from the ambient air, even  
at chilly outside temperatures as low as –20°C Dimplex  
LI MS and LI AS air source heat pumps are the cost  
effective and energy efficient heating and hot water  
solution of the future.  
The heat pump is designed for installation indoors, with  
air ducts or hoses providing inlet/outlet air from the  
outside. For space saving, a built-under buffer tank is  
also available.  
LI MS / LI AS RANGE KEY  
FEATURES:  
Range of 2 models with nominal heating capacities of 11kW  
(single phase) and 16kW (three phase).  
Indoor installation in a basement, utility room or garage.  
Air ducting kits provided as accessories.  
Complementary built-under buffer tank for space saving.  
Operational temperatures from +35°C down to –20°C.  
Energy optimised, auto adaptive defrosting cycle.  
Variable heating water flow temperatures up to 55°C.  
Typical CoP (A2/W35): 3.2 – 3.4 (depending on model).  
Supplied complete with wall mountable WPM 2004 Plus Heat  
Pump Manager.  
Scroll compressor, providing efficient, low noise running.  
Economiser, providing high co-efficients of performance.  
Electronic soft starter controls to reduce starting currents.  
 
TECHNICAL DATA  
EQUIPMENT DATA for air source heat pumps for heating purposes  
1
2
TYPE AND COMMERCIAL DESCRIPTIONS  
MODEL  
LI11MS  
LI16AS  
2.1 Enclosure type acc to EN 60 529 for compact unit or heating element IP 21  
2.2 Installation site  
IP 21  
IP 21  
Indoors  
Indoors  
3
PERFORMANCE DATA  
3.1 Operating temperature limits:  
Heating water supply / return  
Air  
3)  
°C / °C  
°C  
Max. 55 / min. 18  
-20 to +35  
7.5  
Max. 55 / min. 18  
-20 to +35  
7.5  
3.2 Heating water temperature difference at A2 / W35  
3.3 Heating capacity/coeff.of perform. at A-7 / W35  
1)  
kW/---  
kW/---  
kW/---  
kW/---  
kW/---  
dB(A)  
7.6 / 2.9  
9.8 / 2.6  
1)  
at A2 / W35  
at A2 / W50  
at A7 / W35  
9.1 / 3.4  
12.2 / 3.2  
11.5 / 2.4  
15.4 / 3.7  
16.1 / 3.8  
57 / 62  
1)  
9.0 / 2.5  
1)  
10.9 / 4.1  
12.0 / 4.6  
55 / 61  
1)  
at A10 / W35  
3.4 Sound power level of unit / outside  
3
3.5 Heating water flow rate at internal pressure difference  
3.6 Air flow rate at external static pressure difference  
m /h/Pa  
1.0 / 3000  
4200 / 0  
1.4 / 4500  
5200 / 0  
3
m /h/Pa  
3
m /h/Pa  
2500 / 25  
R404A / 2.5  
4000 / 25  
R404A / 3.1  
3.7 Refrigerant: total charge weight  
Type / kg  
4
DIMENSIONS, CONNECTIONS AND WEIGHT  
4.1 Equipment dimensions  
H x W x L mm  
inches  
1360 x 750 x 850  
G 1” ext. thread  
500 x 500  
1570 x 750 x 850  
G 1” ext. thread  
570 x 570  
4.2 Equipment connections for heating system  
4.3 Air duct inlet and outlet (min. inside dimensions)  
4.4 Weight of transport unit(s) incl. packaging  
L x W mm  
kg  
200  
235  
5
ELECTRICAL CONNECTIONS  
5.1 Nominal voltage; fusing  
V/A  
kW  
A
230 / 25  
2.65  
400 / 20  
3.81  
1)  
5.2 Nominal power consumption  
A2 W35  
5.3 Starting current with soft starter  
5.4 Nominal current A2 W35/cos  
38  
25  
A /---  
14.4 / 0.8  
6.9 / 0.8  
4)  
4)  
6
7
COMPLIES WITH EUROPEAN SAFETY REGULATIONS  
OTHER DESIGN CHARACTERISTICS  
7.1 Defrosting  
Type of defrosting  
Automatic  
Cycle reversal  
Yes (heated)  
Yes  
Automatic  
Cycle reversal  
Yes (heated)  
Yes  
Defrost pan available  
2)  
7.2 Heating water inside unit protected against freezing  
7.3 Performance settings  
1
1
7.4 Controller internal / external  
External  
External  
1)  
This data characterises the size and performance capacity of the system. For economic and energy consumption reasons, additional factors such as  
defrosting behaviour, bivalence point and control need to be taken into consideration. Abbreviations have the following meaning e.g. A2 / W55: heat source  
temperature 2°C and heating water supply temperature 55°C.  
2)  
3)  
4)  
The heat circulating pump and the controller of the heat pump must be on standby at all times.  
See operating limits diagram.  
See CE Declaration of Comformity.  
Subject to technical modifications  
 
DIMENSIONS AND CONNECTIONS  
4x Internal screw thread M8x15  
750  
850  
Heating water supply.  
Heat pump outlet  
1" external thread  
Direction of air flow  
Heating water return.  
Heat pump inlet  
1" external thread  
Condensate  
drain inside  
30mm  
Electrical  
lines  
TYPICAL SYSTEM CONFIGURATION AND ACCESSORIES  
LKL  
LKB  
LKK  
600/700  
The diagram below shows a typical LI MS / LI AS heat  
Heat Pump  
LI 11 MS or  
LI 16 AS  
Qty  
1
pump configuration for heating and domestic hot water  
including typical accessories required for a single  
heating circuit.  
Heat Pump  
Control  
Indoor air source heat pump (single phase)  
Indoor air source heat pump (three phase)  
1
Heating and Hot Water Accessories  
(Note this is for illustrative purposes only and is not intended as a full  
PSP 890  
KPV25  
140L built-under buffer tank  
1
1
1
1
hydraulic schematic)  
KPV25  
WWM25  
Compact manifold  
WWM25  
VTB25  
Heating circuit/hot water module  
Manifold bar  
Controller Accessories  
EVL 995/6/7/8 – 1 Heat pump/controller connecting cable  
Ducting Accessories  
1
VTB25  
LKL 600/700  
Long, short or 90° elbow ducts  
(dependent on requirement)  
LKB 600/700  
1 or 2  
Buffer  
Tank  
LKK 600/700  
DMK 600/700  
RSG 600/700  
Sealing collar  
Rain guard  
1 pair  
2
DHW  
Cylinder  
Heating  
Circuit  
LI 11MS / LI 16AS  
Heat Pump  
TRUST OUR EXPERIENCE  
SPECIFICATIONS  
As the world's largest manufacturer of electrical heating technology, Dimplex  
has been at the forefront of product development and innovation for nearly 60  
years. We are well respected within the construction industry for producing  
products of the highest specification and quality and for our pre and post sales  
support. At our manufacturing plant in Kulmbach, Germany, we have been  
developing and producing innovative heat pumps for over 30 years.  
Dimplex policy is one of continuous improvement; the Company therefore  
reserves the right to alter specifications without notice. Although every care  
has been taken in the reproduction of product finishes in this brochure,  
photographs should be taken only as a guide. The information is correct at the  
time of printing.  
CE MARK  
EVERYTHING'S A MATTER OF PROPER PLANNING  
Heat pumps are one of the most efficient and economical  
Products carrying the CE mark comply with European safety standards and  
the European Standard for electro-magnetic compatibility.  
heating systems provided the individual components of the  
heat pump system, including the heat source, heat pump  
and connected heating system are properly matched.  
APPRO ED  
FURTHER INFORMATION  
Heat Pump  
Installer Partner  
For more information on Dimplex heat pumps please speak to your local  
Dimplex Installer Partner or contact us directly:  
Dimplex can provide advice and guidance on the correct  
heat pump for your application and our network of experienced, fully trained  
installers will provide complete system planning assistance, installation and  
comprehensive after-sales service.  
Tel:  
0870 077 7117  
Fax:  
0870 727 0114  
ADDITIONAL LITERATURE  
CERTIFIED QUALITY  
In addition to this publication we have separate, more detailed brochures on  
the following products: • domestic heating • water heating • fires and  
surrounds • portable heating • commercial heating  
Maximum operational reliability of all Dimplex appliances is  
ensured at all times due to continuous quality assurance during  
production and quality certification to EN ISO 9001. The  
international heat pump quality label for heat pump heating  
systems guarantees highest safety and quality standards.The  
tests conducted by recognised testing institutes provide  
comparability of results, ensure compliance with standards and guarantee an  
extensive after-sales network with at least 10-year spare parts availability.  
Dimplex is also a member of the UK Heat Pump Association.  
Please ring our Brochureline for your copy:  
Brochureline: Tel: 0870 727 0115 Fax: 0870 727 0123  
Please note – these phone numbers are charged at standard rate, they are NOT  
premium rate numbers.  
Printed on  
accredited paper.  
© Glen Dimplex UK Limited  
All rights reserved. Material contained in this publication may not be reproduced in  
whole or in part, without prior permission in writing of Glen Dimplex UK Limited.  
Glen Dimplex UK Limited, Marketing Department, Millbrook House, Grange Drive, Hedge End, Southampton, SO30 2DF. Telephone: 0870 077 7117 Fax: 0870 727 0109  
D1238/0406  
For Northern Ireland please contact – Glen Dimplex N.I. Limited, Unit No. 24, Seagoe Industrial Estate, Portadown, Craigavon, Co. Armagh, BT63 5TH. Telephone: 02838 337317  
 

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