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Installation manual

3

ERAP110~170MBYNN

Air-cooled condensing units

4PW22680-1E

Make certain that the foundation surface is even and flat.

Fix anchor bolts (1) into the concrete foundation.

When finally fixing the unit by means of these anchor bolts,
make sure that the washers for channel DIN434 (2), and both
field supplied rubber plates (3) and field supplied raw cork or
rubber sheets  (4)  for better vibration protection, are installed
as indicated.

I

MPORTANT

 

INFORMATION

 

REGARDING

 

THE

 

REFRIGERANT

 

USED

This product is factory charged with N2.

The refrigerant system will be charged with fluorinated greenhouse gases
covered by the Kyoto Protocol. Do not vent gases into the atmosphere.

Refrigerant type:

R407C

GWP

(1)

 value:

1652.5

(1)

 GWP = global warming potential

Please fill in with indelible ink,

the total refrigerant charge

on the refrigerant charge label supplied with the product.

The filled out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the service cover).

R

EFRIGERANT

 

CIRCUIT

Sizing and installation of the refrigerant circuit

Installation of the refrigerant circuit should be done by a licensed technician
and must comply with all relevant European and national regulations.

In order to minimize capacity loss, it is recommended to size the lines
in such a way that the pressure drop of each line does not result in an
evaporating temperature decrease of more than 1°C.

For this purpose we recommend that the equivalent length of the line
should not exceed the following criteria:

Liquid piping: equivalent length (m)

Suction piping: equivalent length (m)

Equivalent length=measured length of the Axnumber of
elbows.

A=0.5/m elbow for liquid piping
A=1.5/m elbow for suction piping

Connecting the unit to the refrigerant circuit

Cut the spinned tube pipes (a nitrogen holding charge will escape)
and connect immediately to the refrigerant circuit. Start vacuuming
immediately after connection.

Never leave the condensing unit 'open' for longer time since the
compressor oil is highly hygroscopic and will contaminate
immediately when exposed to air!

Open the liquid stop valve, discharge stop valve and suction valve (if
provided). Vacuum the unit and perform a leak test.

Charging the unit

1

Perform an integral pre-start inspection like explained in chapter

"Before starting" on page 5

.

It is also necessary to read the operation manual delivered with
the unit. This will contribute to understand the operation of the
unit and its electronic controller.

Pre-charge of refrigerant without operation of the unit

2

Calculate the refrigerant pre-charge according to table below:

Refrigerant charge [kg]=

+

xm

FL

+

xm

FS

+

x0.5

3

Use the 3/8” stop valve on the filter drier to pre-charge the unit
with the complete calculated pre-charge.
Do not operate the compressor for pre-charging, this to
avoid compressor damage!

NOTE

The measurement tabulated is based on the fact
the base is made in the ground (5) or on a
concrete floor (6). In case the base is made on a
rigid floor, it is possible to include thickness of
concrete floor in that of the base.

Ingredient ratio of the concrete is: cement 1, sand
2 and gravel 3. Insert iron bars of Ø10 at every
interval of 300 mm. The edge of the concrete
base should be planed.

ERAP110

ERAP150

ERAP170

7/8"

34

17

13

1"

50

34

25

1-1/8"

100

100

50

ERAP110

ERAP150

ERAP170

2-1/8"

25

17

13

2-1/2"

50

34

25

2-5/8"

100

50

34

2

1

1

total refrigerant charge

2

Contains fluorinated 
greenhouse gases 
covered by the Kyoto 
Protocol

NOTE

To  assure oil return to the compressor do not use
piping size above 2-1/8" for ERAP110 units or above
2-5/8" for ERAP150 and ERAP170 units for suction
in the upward direction! If necessary, use double
suction riser constructions.

NOTE

Make sure to install a sightglass in the liquid line as close
as possible to the expansion device of the evaporator.

Carefully perform all required procedures like
explained in chapters from which is referred to in
chapter 

"Before starting"

but do not start the unit.

ERAP110

ERAP150

ERAP170

kg

31

32

32

kg/m

kg/m

7/8"

0.33

2-1/8"

0.040

1"

0.45

2-1/2"

0.056

1-1/8"

0.58

2-5/8"

0.061

= refrigerant weight per meter field liquid line (kg/m)

= refrigerant weight per meter field suction line (kg/m)

m

FS

=  total length of the field suction line (m)

m

FL

=  total length of the field liquid line (m)

= refrigerant volume of the field evaporator (dm

3

)

Summary of Contents for ERAP110MBYNN

Page 1: ...ERAP110MBYNN ERAP150MBYNN ERAP170MBYNN INSTALLATION MANUAL Air cooled condensing units...

Page 2: ...ji t no E pou it modul F v souladu s osv d en m G Kategorie rizik H Viz tak n sleduj c strana 15 kako je izlo eno u A i pozitivno ocijenjeno od strane B prema Certifikatu C kako je izlo eno u Datoteci...

Page 3: ...l stysl mp tila M C Kylm aine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi katso mallin nimikilpi 14 Maxim ln p pustn tlak PS K bar Minim ln maxim ln p pustn teplota TS TSmin...

Page 4: ...BMS Connection MODBUS J BUS BACNET LON Features Stepless capacity control 30 100 Low ambient operation 15 C Liquid line solenoid valve Voltage free contacts general operation pump or fan contact alarm...

Page 5: ...he length of the ropes 1 to be used for lifting are 6 m minimum each 2 The unit is shipped with wooden beams 2 under it these have to be removed before installation UNPACKING AND PLACING THE UNIT 1 Re...

Page 6: ...mmediately when exposed to air Open the liquid stop valve discharge stop valve and suction valve if provided Vacuum the unit and perform a leak test Charging the unit 1 Perform an integral pre start i...

Page 7: ...n each phase and an earth leak detector Recommended fuses are mentioned on the wiring diagram supplied with the unit Connection of the air cooled condensing unit power supply 1 Using the appropriate c...

Page 8: ...ons the user password is asked by default when resetting a safety This password however can be changed to or to Remote digital controller address To avoid damage to the controllers liquid crystals dur...

Page 9: ...turn the fan pump on or off manually This means that when the unit is off the fan pump can also be turned on at any time to check the pump Defining the BMS settings The BMS parameters allowing communi...

Page 10: ...nted in a holder on the air cooled evaporator The setpoint for the temperature of the cooling battery will change depending on the relative humidity in the room For this purpose a relative humidity se...

Page 11: ...cuit The operation of the water chiller is then controlled by the Digital Display Controller Shut down by switching off the controller and the circuit breaker of the power circuit WARNINGS Emergency s...

Page 12: ...4PW22680 1E Copyright Daikin...

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