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RRLQ014CAW1
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Daikin RRLQ014CAW1 — руководство по установке и обслуживанию тепловых насосов [7/12]

Daikin RRLQ014CAW1 [7/12] To perform vacuum drying

4 Installation

Installation manual

RRLQ011~016CA

Outdoor unit for air to water heat pump

4P385895-1A – 2016.03

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.

4.3.2 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 Evacuate for at least 2hours to a pressure on the manifold of

−0.1MPa (−1bar).

4 After turning OFF the pump, 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.

4.4 Charging refrigerant

4.4.1 To determine the additional refrigerant

amount

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)×0.054

R=Additional charge (kg)(rounded in units

of 0.1kg)

INFORMATION

Piping length is the one way length of liquid piping.

4.4.2 To charge refrigerant

WARNING

▪ Only use R410A as refrigerant. Other substances may

cause explosions and accidents.

▪ R410A contains fluorinated greenhouse gases. Its

global warming potential (GWP) value is 2087.5. 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 both the service port of the

gas stop valve and the service port of the liquid stop valve.

2 Charge the additional refrigerant amount.

3 Open the stop valves.

4.4.3 To fix the fluorinated greenhouse gases

label

1 Fill in the label as follows:

Contains fluorinated greenhouse gases

tCO

GWP × kg

1000

GWP: XXX

RXXX

a If a multilingual fluorinated greenhouse gases label is

delivered with the unit (see accessories), peel off the

applicable language and stick it on top of a.

b Factory refrigerant charge: see unit name plate

c Additional refrigerant amount charged

d Total refrigerant charge

e Greenhouse gas emissions of the total refrigerant charge

expressed as tonnes CO

-equivalent

f GWP = Global warming potential

NOTICE

In Europe, the greenhouse gas emissions of the total

refrigerant charge in the system (expressed as tonnes

-equivalent) is used to determine the maintenance

intervals. Follow the applicable legislation.

Formula to calculate the greenhouse gas emissions:

GWP value of the refrigerant × Total refrigerant charge [in

kg] / 1000

2 Fix the label on the inside of the outdoor unit near the gas and

liquid stop valves.

4.5 Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

NOTICE

For applications with preferential kWh rate power supply:

The interruption of the outdoor unit power supply may not

be more than 2 hours to guarantee optimised startup

conditions for the compressor.

Daikin RRLQ014CAW1 — руководство по установке и обслуживанию тепловых насосов [7/12]

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