LMF Clima HPH series Installation, Operation And Maintenance Manual

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MIUM0014_REV01_ HP_20151009-MIUM-ENG

AIR TO AIR HEAT RECOVERY UNIT WITH BUILT-IN

INVERTER DRIVEN COMPRESSOR HEAT PUMP

SERIES

HPH-HPR-HPS

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Dear Customer,

Thank you for having purchased an LMF product. It is the result of many years of experience, research and has been
made with top quality materials and highly advanced technologies. The CE mark guarantees that the machine meets the
European Standards regarding safety.
The qualitative level is kept under constant surveillance. LMF products therefore offer S
RELIABILITY.

Thank you once again for your preference.

The manufacturer declines all responsibility for any i
The manufacturer reserves the right to modify the products contents in this catalogue without previous notice.

DECLARATION OF CONFORMITY

The Legal Representative of LMF S.p.A
the unit belonging to

HPH, HPR

and

HPS

Voltage Directive 2006/95/CE, EMC Directive 2004/108/CE
(Pressure Equipment Directive - Module A)
The unit belonging to the above series is designed according to the following main safety prescriptions:

- principals of safety integration;
- used materials free from risk;
- safety while transportation, handling and installation;
- protection against mechanical risks;
- protection against electrical risks;
- protection against fire risks;
- design and construction done so that noise emission is reduced to mi
- protection against the risk to remain trapped inside the machine;
- CE indelible marking complete with the needed indications;
- supply of an “User manual”

Meledo di Sarego (VI)
10/12/2014

Thank you for having purchased an LMF product. It is the result of many years of experience, research and has been
made with top quality materials and highly advanced technologies. The CE mark guarantees that the machine meets the

The qualitative level is kept under constant surveillance. LMF products therefore offer S

Thank you once again for your preference.

The manufacturer declines all responsibility for any inaccuracies in this manual due to printing or typing errors.
The manufacturer reserves the right to modify the products contents in this catalogue without previous notice.

DECLARATION OF CONFORMITY

The Legal Representative of LMF S.p.A., located in Meledo di Sarego, via Paradiso 33 (Vicenza

HPS

series complies to the prescriptions of the Machine Directive 2006/42/CE, L

Voltage Directive 2006/95/CE, EMC Directive 2004/108/CE, Ecodesign Directive 2009/125/CE

Module A).

The unit belonging to the above series is designed according to the following main safety prescriptions:

safety while transportation, handling and installation;

design and construction done so that noise emission is reduced to minimum level;
protection against the risk to remain trapped inside the machine;
CE indelible marking complete with the needed indications;

The Legal Representative

Ferraro Mauro

The qualitative level is kept under constant surveillance. LMF products therefore offer SAFETY, QUALITY and

naccuracies in this manual due to printing or typing errors.

The manufacturer reserves the right to modify the products contents in this catalogue without previous notice.

., located in Meledo di Sarego, via Paradiso 33 (Vicenza- ITALY), declares that

series complies to the prescriptions of the Machine Directive 2006/42/CE, Low

Ecodesign Directive 2009/125/CE and Directive 97/23/CE

The unit belonging to the above series is designed according to the following main safety prescriptions:

The Legal Representative

Ferraro Mauro

MIUM0014_REV01_ HP_20151009-MIUM-ENG

SYMBOLOGY

ATTENTION

DANGER

HIGH

RISK

ELECTRIC

SHOCK

ATTENTION:

AUTHORIZED

PERSONNEL

ONLY

–

NTRODUCTION

pag. 4

IMENSIONS AND

EIGHTS

pag. 5

–

RANSPORTATION

ANDLING AND

TORAGE

pag. 8

–

NSTALLATION

ONNECTION

pag. 10

–

IRING

IAGRAMS

pag. 13

–

LECTRONIC

ONTROL

pag. 13

–

CHEDULED

AINTENANCE

pag. 13

–

ROUBLESHOOTING

pag. 16

–

ATERIAL

ISPOSAL

pag. 16

MIUM0014_REV01_ HP_20151009-MIUM-ENG

NTRODUCTION

Dear Customer,

this heat recovery unit with built-in heat pump is designed and developed for civil, commercial and industrial applications
and both allows the room air renewal and supplies tempered air with a sure energy saving. Unit must be used only for
this purpose, LMF will not respond in case of different use of the unit.

In its basic working principle, it consists in :
1 – fans (supply and exhaust air)
2 – high efficiency heat recovery (crossflow for HPH, counterflow for HPS and thermal wheel type for HPR)
3 – high efficiency inverter driven air-to-air reversible heat pump
4 – filter sections (on fresh air and return air intakes)
5 – electrical board complete with electronic control

This unit may be integrated with traditional heating and cooling systems, but they can operate also autonomously.

• This manual together with separate wiring diagram and control instructions (supplied with the unit) must be kept in a dry
place and ready to hand for future consultation when required.
• This manual has been compiled to ensure that the unit is installed in the correct way and to supply comprehensive
information about how to correctly use and service the appliance.

Before proceeding with the installation phase,

please carefully read all the information in this manual, which describes the procedures required to correctly
install and use the unit.

• Strictly comply with the instructions in this manual and conform to the current safety standards.
• The appliance must be installed in accordance with the laws in force in the country in which the unit is installed.
• Unauthorized tampering with the electrical and mechanical equipment will

VOID THE WARRANTY.

• Check the electrical specifications on the identification plate before making the electrical connections. Read the
instructions in the specific section where the electrical connections are described.
• If the unit must be repaired for any reason, this must only be done by a specialized assistance center recognized by the
manufacturer and using genuine spare parts.
• The manufacturer also declines all liability for any damage to persons or property deriving from failure of the information
in this manual to correspond to the actual machine in your possession.

• Proper uses: this series of air to air heat recovery unit is designed to air renewal/conditioning purposes. Any
use differing from this proper use or beyond the operating limits indicated in this manual is forbidden unless
previously agreed with the manufacturer.
• The prevention of the risk of fire/injury at the installation site is the
responsibility of the end user and/or installer.

Verify, upon acquisition, that the apparatus is complete and supplied as
described.
Any eventual disputes must be presented in writing within 8 days from the
reception of the goods.

Each unit is provided with identification plate listing the following:

Address of Manufacturer

“CE” Mark

Model

Serial Number

Power supply (V - ph - Hz)

Maximum current (A)

Manufacturing date

Refrigerant type

Compressor nominal power input (kW)

Refrigerant quantity (kg)

PED category

Min/max refrigerant pressure (bar)

Input power “kW” of electric heater (if present)

Input current “A” of electric heater (if present)

MIUM0014_REV01_ HP_20151009-MIUM-ENG

–

IMENSIONS AND

EIGHTS

Packing dimensions

The following table, referred to the

figure

, shows the characteristic dimensions of the series HPH and its accessories.

S = Supply, E = Exhaust, R = Return F = Fresh air

HPH

144

205

2185

2515

2845

3175

3505

3835

1030

1195

1360

1690

2020

2350

1190

1520

1850

2180

2510

620

785

950

1280

1610

1940

475

640

805

970

1135

150

100

635

800

965

535

620

785

950

1280

1610

1940

455

620

785

950

1115

Weight

550

650

800

1000

1200

1550

1850

370

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Packing dimensions

The following table, referred to the

figure

, shows the characteristic dimensions of the series HPR and its accessories.

S = Supply, E = Exhaust, R = Return F = Fresh air

HPR

144

205

2185

2350

2515

1030

1195

1360

1690

2020

2350

1190

1520

1850

2180

2510

620

785

950

1280

1610

1940

475

640

805

970

1135

150

100

635

800

965

535

620

785

950

1280

1610

1940

455

620

785

950

1115

Weight

470

560

640

890

1120

1360

1630

370

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Packing dimensions

The following table, referred to the

figure

, shows the characteristic dimensions of the series HPS and its accessories.

S = Supply, E = Exhaust, R = Return F = Fresh air

HPS

144

205

2185

2515

2845

3175

3505

3835

1030

1195

1360

1690

2020

2350

1190

1520

1850

2180

2510

620

785

950

1280

1610

1940

475

640

805

970

1135

150

100

635

800

965

535

620

785

950

1280

1610

1940

455

620

785

950

1115

Weight

470

560

640

890

1120

1360

1630

370

MIUM0014_REV01_ HP_20151009-MIUM-ENG

–

RANSPORTATION

ANDLING AND

TORAGE

Packaging

Each unit is put on bench and protected with cellophane film; the protection must remain intact until the moment of
installation.
The materials that are not mounted for technical motives are supplied in fitted packing fixed externally or internally to the
unit.
Recycle and dispose of packing material in conformity with local regulations, be extremely careful not to damage the unit.

Handling

Comply with the current safety regulations concerning the equipment to use when handling the unit or the required ways
of operating. Use single protection devices as goggles, gloves, helmets when handling the unit to avoid risk of injuries.

For the lifting and transportation of the unit, use adequate equipment, according to the 89/391/CEE regulations and
further modifications. For lifting, use round bars crossing the baseframe in the prearranged holes and robust ropes as
shown on the below figure.
Each individual unit weight is listed in this manual.
While moving, try to avoid rotation without control.

Check the weight of the unit before proceeding with the moving and handling operations. Make sure that the appliance is
handled with care and without jolting as rough treatment could damage the functional parts
of the machine. To safeguard persons and property, read the information on the packing that covers the unit before
handling.
Also make sure to:
• Handle the machine with care
• Do not stack other objects on top of the unit

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Before positioning please consider the overall dimensions and the technical space requirements of the system and the
unit, electric and hydraulic connections and any air pipes/ducts or free passages.
Neglecting these aspects may decrease performance and operational life of the unit and therefore increase the operating
costs and maintenance.
Units are designed to be installed

INSIDE

PARTIALLY OUTSIDE

(roof cover needed) and in fixed positions.

Before placing the unit be sure that:
• the location is in a safe accessible place
• the framework or the floor or ceiling is adequate to support the weight of the unit, please refer to weight paragraph
• support points are leveled and aligned
• the place can not be subject to flooding
• the maximum level of the snow does not obstruct the airflow to the unit

To ensure the best air circulation to the unit and thus ensure a smooth operation it is recommended to:
• avoid obstructions to air flow near or above the unit
• protect the unit from high winds that can favor or not the airflow
• protect the unit from heat sources or pollutants (chimneys, extractors…)
• protect the unit from air stratification or recirculation (avoid bad ducting of the fans, containment structure, high walls or
corners next to the unit)
These advises if not respected can lead to a lower efficiency of the unit and possible failures.

Checklist

Upon reception of the unit, we suggest that a complete control is carried out, to verify that the unit is intact and complete,
and no damage has been sustained during transport. Any eventual damage revealed must be communicated to the
carrier, demonstrating the reserve clause within the transport documents, specifying the type of damage.

Storage

The units must be stored in a dry place, sheltered from the sun, rain, sand and wind.
Comply with the storage conditions given below:
• Do not stack the units
• Maximum temperature = 60°C
• Minimum temperature = -20°C

The Manufacturer declines any responsibility for any damage as a result of negligence or lack of protection from
atmospheric agents.

MIUM0014_REV01_ HP_20151009-MIUM-ENG

–

NSTALLATION

ONNECTIONS

Definitions

CUSTOMER

– The Customer is the person, activity or the society, that has bought or hired the unit, and intends to utilize

the machinery for its intended use.

USER / OPERATOR

– The User or Operator is the actual person that has been authorized by the Customer to utilize the

unit.

QUALIFIED PERSONNEL

- Defined as the person who has followed a relevant specific course of study, and so is able

to understand the dangers derived from the use of the machinery, and in turn, due to this, are capable of solving major
dilemmas.

Safety regulations

•

Qualified personnel must carry out the installation.

•

During the installation operation, use protective clothing, for example: glasses, gloves, etc. as indicated by
686/89/CEE and successive regulations.

•

During the installation operate in absolute security, pollution free air and in an area free of obstructions.

•

Respect the regulations in force in the country in which the apparatus is being installed. Specifically relative to
its use, and to the disposal of packing and products used for the cleaning and maintenance of the unit. Respect
the recommendations given by the producers of such products.

•

Before placing in function the unit, check the perfect connection of the various components and the internal
parts of the system.

•

Avoid at all costs human contact with moving parts and contact with the parts themselves.

•

Do not commence with servicing or cleaning of the unit, before the unit has been disconnected from the
main supply.

•

The maintenance and the substitution of damaged or consumed parts must be carried out only by specialized
personnel, following the indications found within this manual.

•

Spare parts must correspond to the requirements specified by Manufacturer.

•

In case of dismantling of the unit

respect the anti-pollution regulations in force.

N.B.

The installer and the user of the apparatus must take into account, and solve problems, connected with any other

type of risk that may occur to the unit. For example, risks derived from the entrance of foreign bodies, or risks due to the
presence of flammable or toxic gas.

The Manufacturer declines any responsibility for failure to respect the Safety Regulations and the prevention
as described below.
Furthermore, the Manufacturer declines any responsibility for damage caused by the improper use of the
unit and/or modifications carried out without proper authorisation.

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Preliminary operations

•

Check the perfect condition of the various components of the unit.

•

Control that contained within the packing, there are the installation accessories, and documentation.

•

Transport the packed section as close as is possible to the intended place of installation.

•

Do not place tools or weight on top of the packed unit.

Choosing place of installation

•

Position the unit on a solid structure, capable supporting the weight of the machine; on each support point install
vibration damper device in order to reduce vibration transmission.

•

Position the unit in a point where the condensation discharge may occur easily; tilt the machine towards the
water discharge connection (3° min)

•

Do not position the unit in an area in which flammable gases, acidic or corrosive substances are present. They
may damage various components in an irreparable manner.

•

Allow a minimum amount of free space as indicated in the following

figure

. This permits ease of installation and

both scheduled and special maintenance (where B is the unit width).

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Air duct connections

•

The ducts must be correctly sized, in order to match unit external static pressure at duty airflow rate.

•

To prevent the water condensation and cut down the sound level it is suggested to install insulated air ducts or
provide a duct insulation.

•

Between unit and air ducts always install suitable flexible joints; anyway, the electrical continuity must be
ensured between air ducts (if metal type) and unit by a ground cable.

Water connections

The installation and connecting of the piping is an operation that must be done correctly, otherwise it may compromise
the performance of the system. At worst it may cause irreversible damage to the machine. These operations are to be
effectuated by

qualified personnel.

Condensation outlet connection

•

Condensation outlet connections are on the opposite side to that of compressor and electric box.

•

The system of drainage must provide, for each outlet, an adequate trap able to allow the condensation run off
on underpressure conditions.

•

The trap must be designed as shown on the following

figure

, where H shall be > 50 mm

•

The trap must have a tap for correct cleaning of the lower part, and must allow an easy disassembly.

•

The path of the condensation drainage tube must always have a gradient toward external.

•

Insure that the condensation run-off tube does not interfere with discharge of the unit.

Liv e llo c ond en s a

Co n d e ns a te le v el

Water coil connection (optional CCS section)

•

The water heating or cooling coil (CCS) is supplied with GAS “male” threaded headers.

•

The tightening must be carried out with extreme care to avoid damage to the copper collectors of the coil.

•

The path of the tubes must be studied in a way to avoid obstacles should it be necessary to extract the unit coil.

•

Inlet and outlet water must consent the thermal exchange against the current. Follow instructions found on the
WATER INLET and WATER OUTLET plate.

•

Provide an air valve at the top of the unit, and a water discharge valve at the bottom.

•

Reinforce sufficiently the units external tubes to avoid offloading the weight onto the coil.

•

Once connection has been effectuated, fix the external seal flush against the control panel, in this way avoiding
the passing of air.

•

The insulation must not rest against the paneling, as this may provoke burning.

•

For control purposes, organize the interception of the tube side coil when the fan is off, to avoid internal
overheating and possible damage to internal components.

•

Provide an anti-freeze system.

•

Provide a cut out switch to isolate the coil from the rest of the circuit in case of extensive maintenance needs.

•

Should the unit be installed in particularly cold areas, drain completely before plant shut-off long periods.

IMPORTANT: IT IS IMPORTANT NOT TO PLACE IN OPERATION THE UNIT IF THE FAN OUTLETS ARE NOT
DUCTED OR NOT PROTECTED BY A SAFETY NET ACCORDING TO THE ACTUAL REGULATION.

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Electrical connections

Qualified personnel according to the supplied schemes must carry out the electrical connections at the control panel.

•

Insure that the voltage and the frequency shown on the technical plate correspond to the connecting power
supply.

•

For the main power supply of the unit and its possible accessories, the use of adapters, multiple plugs and
extension leads shall be avoided.

•

It is the responsibility of the installer to insure that the installation of the unit is as close as possible to
the main power supply, or sufficiently close to protect the electrical parts.

•

Connect the unit to an efficient power point, by using the glands near the electric box panel; power supply
terminals are screw type.

–

IRING

IAGRAMS

Follow wiring diagram attached to every unit inside the electrical board.

Unit model

Series / Document code

HPH & HPS

HPR

14-20-26

AMF0007823

AMF0007818-AMF0008055-AMF0008055

AMF0007473

AMF0007819

AMF0007824

AMF0007820

144

AMF0007825

AMF0007821

205

AMF0007826

AMF0007822

–

LECTRONIC

ONTROL

Follow instructions on HP user manual attached to every unit and contained inside the electrical board (document code
MC00005, valid for all sizes).

–

CHEDULED

AINTENANCE

•

It is the responsibility of the User to carry out all types of maintenance operations.

•

Only personnel previously trained and qualified may carry out maintenance operations.

•

Should the unit require disassembly, hand and body protections are required

Maintenance  keeps  unit  efficiency,  reduce  the  speed  of  deterioration  over  time  and  collect  information  and  data  to
understand  the  efficiency  of  the  unit  and  prevent  failures.  We  suggest  to  prepare  a  booklet  of  installation  according
European legislation. Provide a machine book that allows you to track of the actions taken on the unit, so it will be easier
to cadence adequately the various interventions and will facilitate a possible troubleshooting.
Please  take note  of:  date,  type  of action,  description of  action, measurements performed,  anomalies  identified,  alarms
registered in the alarm history, etc.

Before starting any operation, insure that the general power supply has been isolated.
All the electrical connections must be protected at the source by the installer.

Follow the connection of the unit and its accessories using adequate cabling for the power used, and
respecting the country regulations. The dimensions of the cabling must be sufficient to support a voltage
drop in start up phase inferior to 3% of the nominal.

BEFORE SERVICING THE UNIT, SWITCH OFF THE MAIN POWER SUPPLY.

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Monthly maintenance

Air filters

Each filter section can be entered through hinged side panel, provided with handle; once entered, filter can be removed
by side after removing the vertical filter frame by an Allen key (1).

This unit is equipped with soft bag filters; since they are not cleanable, check them monthly and replace them when dirty.
For an automatic pressure drop limit control, installation of filter pressure switches is recommended.

Yearly maintenance

Check that all the electrical equipment, in particular the fixing of the electrical connections.
Check the tightness of all nuts, bolts, flanges and hydraulic connections; tighten if loose.

Heat recovery

It generally requires no maintenance; just for checking cleaning of heat exchange surface and by-pass device for HPH
and HPS units or wheel driver (motor, pulley and belt) for HPR units, unscrew the fixing panels on the opposite side of
that of compressor.

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Refrigerant circuit

Check the whole circuit in order to find possible gas leakage. In case of leakage, previously empty the circuit and recover
the refrigerant. Remove the lower panel with built-in handles, fixed by panel locks, to enter compressor compartment.

Fans

Each fan section can be entered through hinged side panel, provided with handle. Check that each impeller is clean and
free to rotate.

MIUM0014_REV01_ HP_20151009-MIUM-ENG

Water coil (optional CCS section)

By unscrewing and removing the panel on the opposite side to that of water connection, check that the heat exchange
surface is clean and fins are in perfect condition.

–

ROUBLESHOOTING

Failure searching and problem solving schedule

The following table is for possible failures of air plant system; for errors and alarms displayed by the control panel, see
control user manual.

Founded failure

Probable cause

Possible solution

Fans are not running

•

Power supply is switched off

•

Wrong

loose

electrical

connections

•

Motors on thermal protection mode

•

Fan signal missing

•

Switch on the power supply

•

Restore the right connections

•

Check motor current

•

Check signal connections

Compressor is not running

•

Thermal protection on

•

Too high or too low freon pressure

•

Check

compressor

working

conditions

Air performance decreasing

•

Air filter dirty

•

Air duct blocked

•

Clean or replace filter

•

Check air system (are dampers
open ?)

Insufficient

heating

cooling

performance

•

Temperature setpoint not correct

•

Refrigerant filling not correct

•

Refrigerant leakage

•

Required performance not met by
compressor capacity

•

Unit on defrost mode

•

Compressor

cooling

capacity

reduced

because

too

high

condensing pressure

•

Adjust

the

right

temperature

setpoint, compatibly with outdoor
and

indoor

condition

and

compressor capacity limit

•

Check possible leakage points

•

Refill refrigerant

Too high defrost cycle frequency

•

Too cold outdoor air and/or indoor air

•

Too low return airflow

•

Preheat air

•

Start the unit after room is
preheated

•

Check

return

air

filter

and

return/exhaust air circuit

Condensate water stays inside the
unit

•

Condensate drainage blocked

•

Missing or not adequate trap

•

Clean or free the drainage

•

Install a right trap

–

ATERIAL

ISPOSAL

At the end of unit’s lifetime, its components must be dismantled and disposed of respecting the operational regulations
present in its country of installation.
The materials that the unit is constructed of are:

Precoated galvanized steel sheet metal

Galvanized steel sheet metal

Aluminum

Copper

Polyester

Polyethylene

Glass wool

Plastic

During disconnection of the unit, avoid gas leakage or liquid spillage on environment, especially if the water has additives
like glycol. For dismissing and disposal, deliver the units to specialized centers according to your national laws.

PDF User Manual

HPR series\ HPS series\ HPH 20\ HPH 26\ HPH 50\ HPH 144\ HPH 92\ HPH 205\ HPR 14\ HPR 20\ HPH 14\ HPR 50\ HPR 26\ HPR 144\ HPR 92\ HPR 205\ HPS 20\ HPS 14\ HPS 26\ HPS 50\ HPS 92\ HPS 144\ HPS 205

Full Text Searchable PDF User Manual