Lochinvar Amicus LAHP302WW Guide

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Amicus
Boost Heat Pumps
Installation, commissioning, user
and maintenance instructions
READ AND UNDERSTAND THE
INSTRUCTIONS
Read and fully understand all instructions
before attempting to operate maintain or
install the unit.
Installation manual_Boost heat pump_July2019
Models:
LAHP302WW
LAHP1202WW
LAHP402WW
LAHP1402WW
LAHP602WW
LAHP1804WW
LAHP702WW
LAHP2304WW
LAHP902WW
LAHP2604WW

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TABLE OF CONTENTS
1. INTRODUCTION ............................................................................................................................................................................. 5
Preliminary information ................................................................................................................................................... 5
Aim and content of themanual ...................................................................................................................................... 5
How to store thismanual .............................................................................................................................................. 5
Manual Update ............................................................................................................................................................ 5
How to use thismanual ................................................................................................................................................. 5
Potential Risks ................................................................................................................................................................. 6
General Description of SymbolsUsed ................................................................................................................................. 7
Safety symbols used ......................................................................................................................................................... 8
Limitations and prohibited use ........................................................................................................................................ 8
Unit identification ............................................................................................................................................................ 9
2. SAFETY 10
Warning re potentially hazardous toxic substances ............................................................................................................ 10
Persistence and degradation ........................................................................................................................................... 10
Refrigerant handling ...................................................................................................................................................... 10
Prevent inhalation of high vapourconcentration ............................................................................................................... 11
Procedures to be adopted in the event of accidental release of refrigerant ............................................................................ 11
Main Toxicological Information Regarding the Type of refrigerant used ................................................................................ 11
First Aid Measures ......................................................................................................................................................... 11
3. TECHNICAL CHARACTERISTICS ....................................................................................................................................................... 12
Unit description ............................................................................................................................................................. 12
Frame ....................................................................................................................................................................... 12
Refrigerant circuit ......................................................................................................................................................12
Compressors .............................................................................................................................................................. 12
Source heat exchanger ............................................................................................................................................... 12
User exchangers .........................................................................................................................................................12
Electric enclosure .......................................................................................................................................................12
Microprocessors ........................................................................................................................................................ 12
Control and protection devices ....................................................................................................................................12
Accessories description .................................................................................................................................................. 13
Technical data ............................................................................................................................................................... 14
Operation limits ............................................................................................................................................................. 15
Domestic hot water production ....................................................................................................................................... 16
sizing indirect cylinder coils ........................................................................................................................................ 16
Compressor capacity steps ............................................................................................................................................. 17
Correction tables ........................................................................................................................................................... 17
Sound data .................................................................................................................................................................... 18
4. INSTALLATION ............................................................................................................................................................................. 19
General safety guidelines and use of symbols .................................................................................................................... 19
Health and safety Considerations .................................................................................................................................... 19
Personal protective equipment ....................................................................................................................................... 19
Inspection ..................................................................................................................................................................... 20
In Case of Damage ...................................................................................................................................................... 20
Storage ......................................................................................................................................................................... 20
Unpacking ..................................................................................................................................................................... 20
Lifting and handling ........................................................................................................................................................ 21
Location and minimum technicalclearances ..................................................................................................................... 21
Clearances .................................................................................................................................................................. 22

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Installation of rubber vibration dampers (KAVG) ............................................................................................................... 22
Serial interface card RS485(INSE) .................................................................................................................................... 23
Source water pumpinstallation ....................................................................................................................................... 24
Hydraulic connections .................................................................................................................................................... 24
Chemical characteristics of thewater ............................................................................................................................... 25
User circuit minimum watercontent ................................................................................................................................ 25
Installation with source open circuit (water to water heat pump) ......................................................................................... 26
Chemical characteristics of source water circuit ................................................................................................................. 26
Hydraulic components ................................................................................................................................................... 27
Typical installation ...................................................................................................................................................... 28
Domestic hot water (dhw) hydraulic circuit ...................................................................................................................... 29
Filling the hydraulic circuit .............................................................................................................................................. 29
Emptying the installation ................................................................................................................................................ 29
Electric data .................................................................................................................................................................. 31
Electric connections ....................................................................................................................................................... 32
Remote wiring connections (compulsory) ..................................................................................................................... 32
Remote wiring connections (optional) .......................................................................................................................... 33
Factory fitted wiring connections ........................................................................................................................... 34
Positioning of the user circuit water inlet sensor (BTI) ......................................................................................................... 35
Positioningofthedomestichotwatercircuitsensor(BTS) ......................................................................................................... 36
Refrigerant circuit layout .............................................................................................................................................. 37
5. UNIT START UP ............................................................................................................................................................................. 38
Preliminary checks ......................................................................................................................................................... 38
Before start-up .......................................................................................................................................................... 38
Safety device setting ...................................................................................................................................................39
Controls during unit operation .....................................................................................................................................39
Refrigerant charge checking ........................................................................................................................................ 39
Description of the control panel ...................................................................................................................................... 40
Display ......................................................................................................................................................................40
Display icons ..............................................................................................................................................................40
Key function ..............................................................................................................................................................40
Remote control panel ..................................................................................................................................................... 42
Installation ................................................................................................................................................................ 42
Display icons ..............................................................................................................................................................43
Key function ..............................................................................................................................................................43
6. USE 44
Switch the unit on .......................................................................................................................................................... 44
Heating mode ............................................................................................................................................................45
Domestic hot water mode ...........................................................................................................................................45
Stop............................................................................................................................................................................. 45
Heating mode ............................................................................................................................................................45
Stand-by ....................................................................................................................................................................... 45
How to change the setpoints .......................................................................................................................................... 46
Adjustable parameters ...............................................................................................................................................47
Parameters list ........................................................................................................................................................... 47
Acoustic signal silencing ..............................................................................................................................................48
Alarm reset ................................................................................................................................................................48
There are two types of alarms: .................................................................................................................................... 48

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Display alarm history ..................................................................................................................................................48
7. MAINTENANCE OF THE UNIT ......................................................................................................................................................... 49
General warnings ........................................................................................................................................................... 49
Drive access .................................................................................................................................................................. 49
Periodical checks ........................................................................................................................................................... 49
Every 6 months .......................................................................................................................................................... 49
End of seasons or unit switchedoff ..............................................................................................................................50
Refrigerant circuit repair ................................................................................................................................................ 50
8. DECOMMISSIONING ..................................................................................................................................................................... 50
Disconnecttheunit ........................................................................................................................................................... 50
Disposal, recovery and recycling ...................................................................................................................................... 51
RAEE Directive (EU Only) .............................................................................................................................................51
9. DIAGNOSIS AND TROUBLESHOOTING ............................................................................................................................................. 52
Fault finding .................................................................................................................................................................. 52
10.DIMENSIONS............................................................................................................................................................................ 54

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1. INTRODUCTION
P RELIMINARY INFORMATION
Reproduction, storage or transmission of any part of this publication inany form, without the prior written consent of the
Lochinvar Limited, is pro hibited.
The unit to which these instructions refer, is designed to be used for the purposes described and to be operated in accordanc e
with these instructions.
The Lochinvar Limited will not beliable for claims fordamage caused topersons, animals, material goods orpropertycaused by
improperinstalla tion, adjustment and maintenance or improper use.Any use not specified in this manual is prohibited.
This document isintended toprovideinformation only anddoes not form a contract with thirdparties.
The Lochinvar Limited pursues a policy of constant improvement and development of its products and therefore reserves the right to change
the specifications andthe documentation atany time, without notice and without obligation to update existing equipment.
Aim and content of themanual
These instructions are intended to provide the information required for the selection, installation, use and maintenance of the
unit.
TheyhavebeenpreparedinaccordancewiththeEuropeanUnionlawsandwiththetechnicalstandardsinforceatthedate ofissueofthe
instructions.
The instructions contain all the necessary information to prevent any reasonably foreseeable misuse.
How to store thismanual
The manual must be kept in a suitable place with easy access for users and operators, protected from dust and damp.
The manual must always accompany the unit during the entire life cycle of the same and therefore must be transferred to any
subsequent user.
Manual Update
Itis recommended thatthe manual isupdated tothe latest revision available. Ifupdatesaresenttothecustomertheymustbeadded to
this manual.
The latest information regarding the use of its products is available by contacting the Lochinvar Limited.
How to use thismanual
The manual is an integral part of the unit.
Users or operators must consult the manual before performing any operation and especially so when
transporting, han dling,installation, maintaining, or dismantling the unitinorder toeliminate uncertainty
and reduce risk.
In these instructions symbols have been used (described in the following paragraphs) to draw the attention of
operators and users to the operations that have a higher risk and which must be performed safely.

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P OTENTIAL R ISKS
Whilst the unit has been designed to minimize any risk posed to the safety of people who will interact with it, it has not been
technically possibletoeliminatecompletelythecausesofrisk.Itisthereforenecessarytorefertotherequirementsand
symbolismbelow:
LOCATION OF RISK
POTENTIAL RISK
METHOD OF INJURY
PRECAUTIONS
Thermal heat
exchangers.
Small stab
wounds.
Contact
Avoid any contact, use protective
gloves.
Fan and fan grilles.
Cuts, eye
damage, broken
bones.
Insertion of sharp objects through
the grid while the fans are
operating.
Never put objects through the
protection grilles.
Internal component:
compressors and
discharge pipes
Burns.
Contact
Avoid any contact, use protective
gloves.
Internal component:
electric cables and
metallic parts
Electrocution,
severe burns.
Defect in the supply cable
insulation, live metallic parts.
Adequate protection of power
cables, ensure correct earthing of
all metal parts.
External to unit:
Poisoning, severe
burns
Fire due to short circuit or Size
cables and mains protection
overheating of the supply cable
Size cables and mains protection
system in accordance with IEE
regulations
Low pressure safety
valve.
Poisoning, severe
burns.
High evaporating pressure causing
a refrigerant discharge during
maintenance.
Carefully check the evaporating
pressure during the maintenance
operations.
High pressure safety
valve
Poisoning, severe
burns.
Activation of high pressure safety
valve with the refrigerant circuit
open
If possible do not open the
refrigerant circuit valve: carefully
check condensing pressure: use
all relevant PPE required by law
Entire unit
External fire
Fire due to natural disaster or
combustion of elements nearby
Provide necessary firefighting
equipment
Entire unit
Explosions,
burns, injuries,
poisoning,
natural disasters
Breakages, failures due to natural
disaster
Plan the necessary precautions
both electrical, mechanical and
structural

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The graphic symbol “warning” is qualified with additional safety information (text or other symbols).
G ENERAL D ESCRIPTION OF S YMBOLS U SED
SafetysymbolscombinedinaccordancewithISO3864-2:
SafetysymbolscombinedinaccordancewithISO3864-2:
BANNED
Ablacksymbolinsidearedcirclewithareddiagonalindicatesanactionthatshouldnot be
performed.
WARNING
Ablackgraphicsymboladdedtoayellowtrianglewithblackedgesindicates
danger.
ACTION REQUIRED
Awhite symbol insertedina blue circle indicates anactionthatmustbedone to
avoidarisk.

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The unit is not suitable for operations in environments:
• excessively dusty or potentially explosive atmospheres;
• where there are vibrations;
• where there are electromagneticfields;
• where there are aggressiveatmospheres
S AFETY SYMBOLS USED
GENERAL RISK
Observe all signs placed next to the pictogram. The failure tofollow directions may create a risk situation that may be
injurious to the user.
ELECTRICAL HAZARD
Observe all signs placed next to the pictogram.
The symbol indicates components of the unit and actions described in this manual that could create an electrical
hazard .
MOVING PARTS
The symbol indicates those moving parts of the unit that could create risk.
HOT SURFACES
The symbol indicates those components with high surface temperature that could create risks.
SHARP SURFACES
The symbol indicates components or parts that could cause stab wounds.
EARTH CONNECTION
The symbol identifies Earthing connection points in the unit.
READ AND UNDERSTAND THE INSTRUCTIONS
Read and understand the instructions of the machine before any operations .
RECOVER OR RECYCLE MATERIAL
LIMITATIONS AND PROHIBITEDUSE
The machine is designed and built exclusively for the uses described in “Limitations of use” of the technical
manual. Anyother use is prohibited because it maypose a potential riskto the health of operators and
users.

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The product label should never be removed from the unit.
U NIT IDENTIFICATION
Each unit hasa rating platethat provides keyinformation regarding the machine.
The rating plate may differ from the one shown below asthe example is for a standard unit without
accessories. For all electrical information not provided on the label, refer to the wiring diagram.
A facsimile of the label is shown below:

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For further information regardingthe characteristics of the refrigerant and oil used, refer tothe safety data
sheets available from the refrigerant and oil manufacturers.
ENVIRONMENTAL PROTECTION: Read the ecological information and the following instructions
carefully .
Users and maintenance personnel must be adequately informed about the possible risks of handling
potentially toxic substances. Failure to follow such instructions can cause damage to personnel
or to the unit.
2. SAFETY
W ARNING RE POTENTIALLY HAZARDOUS TOXIC SUBSTANCES
Identification of the Type of Refrigerant Fluid Used: R134a
 Tetrafluoroethane (HFC134a) 100% by weight CAS No.: 000811-97-2
Identification of the Type of OilUsed.
 The lubricant used is polyester oil. Please refer to the information provided on the compressor data plate.
Main Ecological Information Regarding the Types of refrigerants Fluids used.
P ERSISTENCE AND DEGRADATION
The refrigerants used decompose inthe lower atmosphere (troposphere) relatively quickly.The decomposed products are highly
dispersible and therefore have a very low concentration. They do not influence the photochemical smog which is not among the
VOC volatile organic compounds (as stipulated inthe guidelines tothe UNECE). The constituent refrigerants of R407C (R32,R125
and R134a), do not damage the ozone layer. These substances are regulated under the Montreal Protocol (revised 1992) and
regulations EC no. 2037/200 of29June 2000.
Effects of discharges
Discharges into the atmosphere of this product does not cause a long-term contamination.
Exposure controls and personalprotection
Wear protective clothing and gloves, protect your eyes and face
Professional exposure limits
R134a
HFC134a TWA 1000 ppm
R EFRIGERANT HANDLING