Daikin VRV Service Manual

Si30-408 REFNET Piping
Introduction 17
5. REFNET Piping
5.1 Allowable Length of Refrigerant Piping
5.1.1 For RSXY(P) ~ KA(L)
 Allowable Length of Refrigerant Piping (Actual length)
 Allowable Level Difference
Notes: 1. Be sure to use REFNET piping materials for piping branch part.
2. Do not make branch part after branching with REFNET header.
Outdoor unit (master) to
Outdoor unit (slave) [a]
#1 branch kit to Indoor unit [c] Outdoor unit to Indoor unit (b + c)
Allowable length (m) 5m or less 40m or less 120m or less
Between outdoor unit and indoor unit [H
1]
Between indoor
units [H
2]
Between outdoor units
(master and slave units) [H3]
Allowable level
difference (m)
50m or less
If outdoor unit is located lower than indoor unit: 40m or less
15m or less 5m or less
H1
H3
H2
c
b
a
Outdoor unit (Master unit)
Outdoor unit (Slave unit)
Indoor units
Indoor units
Indoor units
#1 refrigerant branch kit
REFNET header

Daikin VRV Specifications

General

Brand	Daikin
Energy Efficiency	High
Control	Centralized and individual zone control
Inverter Technology	Yes
Type	Variable Refrigerant Volume (VRV)
Cooling Capacity	Varies by model
Heating Capacity	Varies by model
Refrigerant	R-32 or R-410A
Application	Commercial buildings, large residential spaces
SEER	Varies by model
HSPF	Varies by model
EER	Varies by model
COP	Varies by model
Sound Level	Varies by model
Indoor Unit Options	wall-mounted, ducted