Daikin RZAG140L7V1B [10/40] Installation
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Daikin RZAG140L7V1B [10/40] Installation

Daikin RZAG100L7V1B [10/40] Installation
6 Installation
Installer reference guide
10
RZAG71~140L7V1B
Split system air conditioners
4P418663-1 – 2016.02
m Total refrigerant charge in the system
A
min
Minimum floor area
(a) Ceiling-mounted unit (=Ceiling-mounted unit)
(b) Wall-mounted unit (=Wall-mounted unit)
(c) Floor-standing unit (=Floor-standing unit)
5.3 Preparing refrigerant piping
5.3.1 Refrigerant piping requirements
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
Refrigerant piping material
▪ Piping material: Phosphoric acid deoxidised seamless copper.
▪ Piping temper grade and thickness:
Outer diameter
(Ø)
Temper grade Thickness (t)
(a)
9.5mm (3/8") Annealed (O) ≥0.8mm
t
Ø
15.9mm (5/8") Annealed (O) ≥1.0mm
(a) Depending on the applicable legislation and the unit's
maximum working pressure (see "PS High" on the unit
name plate), larger piping thickness might be required.
▪ Flare connections: Only use annealed material.
Refrigerant piping diameter
Use the same diameters as the connections on the outdoor units:
L1 liquid piping Ø9.5mm
L1 gas piping Ø15.9mm
Refrigerant piping length and height difference
The piping length and height difference must comply with the
following requirements:
H1
L1
Requirement RZAG71 RZAG100~140
Minimum total one‑way piping
length
3m≤L1
Maximum total one‑way piping
length
L1≤55m
(75m)
(a)
L1≤85m
(100m)
(a)
Height difference between the
indoor unit and the outdoor unit
H1≤30m
(a) Parenthesised figure represents the equivalent length.
5.3.2 Refrigerant piping insulation
▪ Use polyethylene foam as insulation material:
▪ with a heat transfer rate between 0.041 and 0.052W/mK (0.035
and 0.045kcal/mh°C)
▪ with a heat resistance of at least 120°C
▪ Insulation thickness
Ambient
temperature
Humidity Minimum thickness
≤30°C 75% to 80% RH 15mm
>30°C ≥80% RH 20mm
5.4 Preparing electrical wiring
5.4.1 About preparing electrical wiring
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
INFORMATION
Also read "6.7.5 Specifications of standard wiring
components"on page19.
WARNING
▪ If the power supply has a missing or wrong N-phase,
equipment might break down.
▪ Establish proper earthing. Do NOT earth the unit to a
utility pipe, surge absorber, or telephone earth.
Incomplete earthing may cause electrical shock.
▪ Install the required fuses or circuit breakers.
▪ Secure the electrical wiring with cable ties so that the
cables do NOT come in contact with sharp edges or
piping, particularly on the high-pressure side.
▪ Do NOT use taped wires, stranded conductor wires,
extension cords, or connections from a star system.
They can cause overheating, electrical shock or fire.
▪ Do NOT install a phase advancing capacitor, because
this unit is equipped with an inverter. A phase
advancing capacitor will reduce performance and may
cause accidents.
WARNING
▪ All wiring must be performed by an authorized
electrician and must comply with the applicable
legislation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on the site and all electrical
construction must comply with the applicable
legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
6 Installation
6.1 Overview: Installation
This chapter describes what you have to do and know on-site to
install the system.
Typical workflow
Installation typically consists of the following stages:
▪ Mounting the outdoor unit.
▪ Mounting the indoor unit (+ decoration panel).
▪ Connecting the refrigerant piping.
▪ Checking the refrigerant piping.
▪ Charging refrigerant.
▪ Connecting the electrical wiring.
▪ Finishing the outdoor installation.
▪ Finishing the indoor installation.

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