Hitachi YUTAKI S COMBI Series User Manual

3.4.2 Split system - Indoor unit
3.4.2.1 YUTAKI S
Model
RWM-2.0
NE
RWM-2.5
NE
RWM-3.0
NE
RWM-4.0
NE
RWM-5.0
NE
RWM-6.0
NE
RWM-8.0
NE
RWM-10.0
NE
Water heat exchanger
Type - Brazed plate
Material - Stainless steel
Transfer uids - R410A - H
2
O
Quantity - 1
Internal refrigerant volume L 0.54 0.73 0.81 1.55 2.09 2.09 3.19 3.91
Internal water volume L 0.57 0.76 0.84 1.64 2.18 2.18 3.28 4.00
Insulation material - NBR + PVC
Water pump
Model - Yonos PARA RS15/7.0 Yonos PARA RS15/7.5 UPML GEO 25-105
Type - Inverter
Control - PWM
Power supply - 1~ 230V 50Hz
Maximum lift pressure mwc 7.2 7.6 10.5
Maximum water ow m
3
/h 3.3 4.0 5.5
Maximum power input W 45 75 140
Piping
Water inlet (in) G 1” G 1” G 1-1/2”
Water outlet (in) G 1” G 1” G 1-1/2”
Inlet/outlet distance mm 130 130 180
Water electric heater
Material - Stainless steel (Immersion heating element)
Power supply - 1~ 230V 50Hz
1~ 230V 50Hz
3N~ 400V 50Hz
3N~ 400V 50Hz
Maximum electric heater power kW 3.0 6.0 9.0
Regulated electric heater power
(step 1/ step 2/ step 3)
kW 1.0/2.0/3.0 2.0/4.0/6.0 3.0/6.0/9.0
Thermostat security Yes (Cut-out: 90 ºC)
Expansion vessel
Material - Steel (with stainless/galvanized steel connections)
Internal water volume L 6.0 10.0
Working pressure MPa 0.3
Pre-loading pressure
(Air side)
MPa 0.1
Water strainer
Type - Isolated water strainer (Filter ball)
Material - Brass
Piping connection (in) 1”, DN25 1”, DN32
Mesh (hole size) mm 0.7
Automatic lter cleaning - Yes
Safety valve
-
Yes (3 bar)
Low pressure switch
-
Yes (<0.5 bar)
Shut-off valve
-
Yes (2 factory-supplied valves)
Air purger
-
Yes
Manometer
-
Yes
Unit controller
-
Yes (PC-ARFHE)
GENERAL DATA
PMML0335A rev.1 - 04/2016
52

Hitachi YUTAKI S COMBI Series Specifications

General

Brand	Hitachi
Model	YUTAKI S COMBI Series
Category	Heat Pump
Language	English