Daikin EHYKOMB33AA2 [35/136] Installation

Daikin EHYKOMB33AA2 [35/136] Installation
7 Installation
Installer reference guide
35
EVLQ05+08CAV3 + EHYHBH05AA + EHYHBH/X08AA +
EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P355634-1A – 2016.02
7.9.3 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)×0.020
R=Additional charge (kg)(rounded in units
of 0.1kg)
INFORMATION
Piping length is the one way length of liquid piping.
7.9.4 To determine the complete recharge
amount
INFORMATION
If a complete recharge is necessary, the total refrigerant
charge is: the factory refrigerant charge (see unit name
plate) + the determined additional amount.
7.9.5 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.
CAUTION
To avoid compressor breakdown, do NOT charge more
than the specified amount of refrigerant.
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.
If pump down is needed in case of dismantling or relocating the
system, see "14.2To pump down"on page95 for more details.
7.9.6 To fix the fluorinated greenhouse gases
label
1 Fill in the label as follows:
b
Contains fluorinated greenhouse gases
2
1
1
1
2
2
kg
tCO
2
eq
GWP × kg
1000
=
=
+
kg
=
kg
=
GWP: XXX
RXXX
a
f
c
d
e
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
2
-equivalent
f GWP = Global warming potential
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes
CO
2
-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.
7.10 Connecting the water piping
7.10.1 About connecting the water piping
Before connecting the water piping
Make sure the outdoor unit, indoor unit and gas boiler are mounted.
Typical workflow
Connecting the water piping typically consists of the following
stages:
1 Connecting the water piping of the indoor unit.
2 Connecting the water piping of the gas boiler.
3 Filling the space heating circuit.
4 Filling the domestic water circuit of the gas boiler.
5 Filling the domestic hot water tank.
6 Insulating the water piping.
7.10.2 Precautions when connecting the water
piping
INFORMATION
Also read the precautions and requirements in the
following chapters:
General safety precautions
Preparation
7.10.3 Connecting the water piping of the indoor
unit
To connect the water piping for space heating
NOTICE
In case of old heating installations, it is recommended to
use a dirt separator. Dirt or sediment from the heating
installation can damage the unit and reduce its lifetime.
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit.
NOTICE
It is recommended to install shut-off valves to space
heating in and space heating out connections. Shut-off
valves are field supplied. They allow service to the unit
without draining the whole system.
Foresee a drain/fill point to drain or fill the space
heating circuit

Содержание

Скачать