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4 Installation

Installation manual

9

RRGA04~08DAV3
ROTEX HPSU Bi-Bloc Ultra
4P496756-1B – 2018.07

4.3.1

To connect the refrigerant piping to the
outdoor unit

1

Connect the liquid refrigerant connection from the indoor unit to
the liquid stop valve of the outdoor unit.

a

b

c

a

Liquid stop valve

b

Gas stop valve

c

Service port

2

Connect  the  gas  refrigerant  connection  from  the  indoor  unit  to
the gas stop valve of the outdoor unit.

NOTICE

It  is  recommended  that  the  refrigerant  piping  between
indoor  and  outdoor  unit  is  installed  in  a  ducting  or  the
refrigerant piping is wrapped with finishing tape.

4.4

Checking the refrigerant piping

4.4.1

To check for leaks

NOTICE

Do NOT exceed the unit's maximum working pressure (see
"PS High" on the unit name plate).

NOTICE

Make  sure  to  use  a  recommended  bubble  test  solution
from  your  wholesaler.  Do  not  use  soap  water,  which  may
cause cracking of flare nuts (soap water may contain salt,
which  absorbs  moisture  that  will  freeze  when  the  piping
gets  cold),  and/or  lead  to  corrosion  of  flared  joints  (soap
water  may  contain  ammonia  which  causes  a  corrosive
effect between the brass flare nut and the copper flare).

1

Charge the system with nitrogen gas up to a gauge pressure of
at  least  200  kPa  (2  bar).  It  is  recommended  to  pressurize  to
3000 kPa (30 bar) in order to detect small leaks.

2

Check  for  leaks  by  applying  the  bubble  test  solution  to  all
connections.

3

Discharge all nitrogen gas.

4.4.2

To perform vacuum drying

1

Vacuum the system until the pressure on the manifold indicates
−0.1 MPa (−1 bar).

2

Leave as is for 4-5 minutes and check the pressure:

If the pressure…

Then…

Does not change

There is no moisture in the
system. This procedure is
finished.

Increases

There is moisture in the
system. Go to the next step.

3

Vacuum the system for at least 2 hours to a manifold pressure
of −0.1 MPa (−1 bar).

4

After  turning  the  pump  OFF,  check  the  pressure  for  at  least
1 hour.

5

If  you  do  NOT  reach  the  target  vacuum  or  CANNOT  maintain
the vacuum for 1 hour, do the following:

▪ Check for leaks again.
▪ Perform vacuum drying again.

NOTICE

Make  sure  to  open  the  stop  valves  after  installing  the
refrigerant  piping  and  performing  vacuum  drying.  Running
the  system  with  the  stop  valves  closed  may  break  the
compressor.

4.5

Charging refrigerant

4.5.1

To determine the additional refrigerant
amount

WARNING

If the total refrigerant charge in the system is ≥1.84 kg
(i.e.  if  the  piping  length  is  ≥27  m)

,  you  need  to  comply

with  additional  minimum  floor  area  requirements  for  the
indoor  unit.  For  more  information,  see  the  indoor  unit
installation manual.

If the total liquid

piping length is…

Then…

≤10 m

Do NOT add additional refrigerant.

>10 m

R=(total length (m) of liquid
piping⁠–⁠10 m)×0.020

R=Additional charge (kg) (rounded in units
of 0.1 kg)

INFORMATION

Piping length is the one-way length of liquid piping.

4.5.2

To charge additional refrigerant

WARNING

▪ Only  use  R32  as  refrigerant.  Other  substances  may

cause explosions and accidents.

▪ R32  contains  fluorinated  greenhouse  gases.  Its  global

warming  potential  (GWP)  value  is  675.  Do  NOT  vent
these gases into the atmosphere.

▪ When  charging  refrigerant,  ALWAYS  use  protective

gloves and safety glasses.

Prerequisite: 

Before charging refrigerant, make sure the refrigerant

piping is connected and checked (leak test and vacuum drying).

1

Connect the refrigerant cylinder to the service port.

2

Charge the additional refrigerant amount.

3

Open the gas stop valve.

Содержание ROTEX HPSU Bi-Bloc Ultra

Страница 1: ...Installation manual ROTEX HPSU Bi Bloc Ultra English Installation manual ROTEX HPSU Bi Bloc Ultra RRGA04DAV3 RRGA06DAV3 RRGA08DAV3...

Страница 2: ...ektyw n urma prevederilor 19 20 21 22 23 24 25 ob upo tevanju dolo b vastavalt n uetele laikantis nuostat pateikiam iev rojot pras bas kas noteiktas odr iavaj c ustanovenia bunun ko ullar na uygun ola...

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Страница 4: ...To finish the outdoor unit installation 11 5 Starting up the outdoor unit 11 6 Technical data 11 6 1 Piping diagram Outdoor unit 11 6 2 Wiring diagram Outdoor unit 13 1 About the documentation 1 1 Abo...

Страница 5: ...following spacing guidelines 1200 250 250 250 350 350 mm mm a b b a a Air outlet b Air inlet INFORMATION In sound sensitive areas e g near a bedroom you can install the low sound cover EKLN08A1 to de...

Страница 6: ...ectrical wiring on the outdoor unit on page 10 4 2 Mounting the outdoor unit 4 2 1 To provide the installation structure This topic shows different installation structures For all use 4 sets of M8 or...

Страница 7: ...ti vibration rubber field supply 4 2 2 To install the outdoor unit CAUTION Do NOT remove the protective cardboard before the unit is installed properly 1 Lift the outdoor unit as described in 2 1 1 To...

Страница 8: ...al of the drain pan heater Non heated drain tube When using the drain pan heater without drain tube or with a non heated drain tube remove the drain hole insulation Item c on the illustration INFORMAT...

Страница 9: ...essure Then Does not change There is no moisture in the system This procedure is finished Increases There is moisture in the system Go to the next step 3 Vacuum the system for at least 2 hours to a ma...

Страница 10: ...e multicore cable for power supply cables 4 6 1 About electrical compliance Only for RRGA04 08DAV3 Equipment complying with EN IEC 61000 3 12 European International Technical Standard setting the limi...

Страница 11: ...ice cover 5 Starting up the outdoor unit See the indoor unit installation manual for configuration and commissioning of the system 6 Technical data 6 1 Piping diagram Outdoor unit R2T 7 0 CuT 7 0 CuT...

Страница 12: ...Bi Bloc Ultra 4P496756 1B 2018 07 M1F Fan R1T Thermistor outdoor air R2T Thermistor heat exchanger R3T Thermistor compressor discharge S1PH High pressure switch automatic reset Y1E Electronic expansio...

Страница 13: ...YLW yellow 3 Legend AL Connector C Capacitor DB Rectifier bridge DC Connector DP Connector E Connector F1U Fuse T 6 3 A 250 V FU1 FU2 Fuse T 3 15 A 250 V FU3 Fuse T 30 A 250 V H Connector IPM Intelli...

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Страница 16: ...usland Our partners abroad Unsere Partner im Ausland Nos partenaires l tranger Le nostre sedi all estero Neustros representantes en el extranjero Nasi partnerzy za granic Na i partne i v zahrani http...

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