Daikin VRV IV RKXYQ5T8Y1B Series, Инструкция для установки и пользователя

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16 | Unit installation
Installer and user reference guide
71
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1A – 2020.10
3 Wind the sealing pad (= insulation) around the metal clamp and drain hose,
and fix it with cable ties.
4 Connect the drain piping to the drain hose.
≤ 4 mm
A
A'
A-A'
A
A'
e c d
b
a
d
c
a b
2+3+4 1
a Drain pipe connection (attached to the unit)
b Drain hose (accessory)
c Metal clamp (accessory)
d Sealing pad (accessory)
e Drain piping (field supply)
Guidelines when installing a drain pump and drain reservoir
If you install a drain pump, you must also install a drain reservoir. The drain pump
and drain reservoir are to be field supplied.
▪ Drain pump:
- Minimum flow rate: 45 l/h
- Feedback contact. You can connect a contact that gives the status of the drain
pump to the heat exchanger unit. The heat pump uses this contact as an input.
A1P
X1M
X2M
1 2
X2M X2M
b
a
X2M
d
X2M
c
a Feedback contact from the drain pump
b Cable tie
c Drain pump malfunction: If the contact opens, the heat pump stops operating and
gives an error. For more information, see
"Error codes: Overview" [
4
140].
d Drain pump normal operation: If the contact closes, the heat pump resumes normal
operation.
▪ Drain reservoir:
- Minimum volume: 3 l
- Best practice: Use a drain reservoir with a float switch that gives an ON/OFF
signal to the drain pump.
To check for water leaks
Gradually put approximately 1 l of water in the drain pan, and check for water
leaks.