Model (R410A refrigerant)

RCUA065AVMY RHUA065AVMY
RCUA130AVMY RHUA130AVMY
RCUA150AVMY RHUA150AVMY
Installation, Operation and
Maintenance Manuel

Hitachi Modular Air-cooled

Inverter Scroll Chiller and Heat Pump

Attention
Before installation and use, please
read the manual carefully and keep it
properly for future reference.
 Important notice
● Product design and performance of Hitachi will be continuously improved, and specifications are subject to
change without notice.

● Hitachi makes no predictions as to the potential hazards that may arise from each possible situation.

● This manual cannot be reproduced without written permission.

● Signal words (Danger, Warning and Caution) are used to identify the level of risk. The risks associated with
each signal are explained below:

Danger : A direct danger that could result in serious personal injury or death.

Warning : Dangerous or unsafe practices can result in serious personal injury or death.

Caution : Dangerous or unsafe practices can result in minor personal injury or damage to
product or property.

Attention : Information that is helpful for use or repair.

● If necessary, please contact the contractor or Hitachi distributor you are hiring.

● This manual provides a common description and information for other models of air-cooled heat pump chillers.

● This air-cooled heat pump chiller is designed according to the following temperature, and the chiller should be
used within this range.

● This manual is a permanent part of an air-cooled chiller (heat pump) and should be kept in the chiller.

1
 Preparation

1.4 Technical Specification

Model RC(H)UA065AVMY RC(H)UA130AVMY RC(H)UA150AVMY

Nominal cooling capacity kW 65 130 150

Power Input (cooling) kW 19.8 39.6 48.7
EER kw/kw 3.28 3.28 3.08
IPLV@ARI kw/kw 6.0 6.0 6.0
Nominal heating capacity kW 68 136 150
Power Input (heating) kW 22.1 44.2 48.7
COP kw/kw 3.08 3.08 3.08
Nominal unit current draw (cooling) A 33 66 80
Nominal unit current draw (heating) A 35 70 80
Maximum start-up current A 10 10 10
Maximum unit current draw A 43 86 95
Refrigerant — R410A
Cooling Only
Kg 2*7.5 4*7.5 4*7.5
Refrigerant Charge type
Heat Pump type Kg 2*9 4*9 4*9.5
Flow control — Electronic expansion valve
Circuit No. — 2 4 4
Compressor capacity control % 100～25,0 100～12.5,0 100～12.5,0
Sound Pressure dB 68 71 73
Type — Variable speed scroll compressor
Compressor
Quantity set 2 4 4
Type — Brazed plate heat exchanger
Water flow rate m³/h 10.1 20.2 23.3
Water side heat
exchanger Pressure drop kpa 55 55 68
2-inch internal
Water connection — DN65 flange DN65 flange
thread
Type kW Grooved copper tubes and aluminum fins
Air side heat Fan power kW 1.5 3.0 3.0
exchanger Quantity — 2 4 4
Air flow rate m3/h 28600 57200 57200
Width mm 2022 2076 2076
Outer Dimensions Depth mm 996 1971 1971
Height mm 2240 2240 2240
Cooling Only type kg 490 954 974
Net weight
Heat Pump type kg 538 1050 1070

Notes:
1. Nominal cooling mode: water heat exchanger entering/leaving water temperature 12.2/6.7°C, outside air temperature 35°C
2. Nominal heating mode: water heat exchanger entering/leaving water temperature 40/45°C, outside air temperature 7°C
3. Water heat exchanger fouling factor 0.018m2K/kW
4. Customer side flange and thread pipe is not provided with the unit
5、Sound Data in accordance with JB/T4330. Test the noise value of the unit under standard cooling condition in semi-anechoic
chamber. The operation conditions vary from actual installation states. The actual noise value will be higher than the standard
value in this table due to the influence of ambient noise or echo (it may be about 4 ~ 6dB higher depending on different installation
state). When installing, please consider the influence of echo and adopt sound insulation treatment as required.
6. Main power supply: 380V-3Ph-50Hz

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 Preparation

RC(H)UA130/150AVMY

Termination
Box
Termination
Box

Fig. 3 Unit Dimension Drawing

1.8 Recommended Foundation

CAUTION
When the unit is mounted on the ground, the weight of concrete should be 1.5 to 2 times heavier than that of
unit.

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 Preparation

1.5 Performance table

Cooling performance

RC(H)UA065AVMY (Full load operation)

Outdoor ambient temperature (℃)
20.0 25.0 30.0 35.0 40.0 43.0
OWT
CCAP IPT CCAP IPT CCAP IPT CCAP IPT CCAP IPT CCAP IPT

5.0 72.4 16.4 68.1 17.4 63.7 18.3 59.3 19.3 55.4 21.2 53.0 22.4
7.0 77.8 16.6 73.5 17.7 69.3 18.7 65.0 19.8 60.2 21.5 57.3 22.6
9.0 83.2 16.8 79.0 18.0 74.8 19.1 70.7 20.3 65.0 21.9 61.6 22.8
12.0 91.2 17.0 87.2 18.4 83.2 19.8 79.2 21.2 72.2 22.4 68.0 23.1
15.0 99.2 17.3 95.4 18.8 91.5 20.4 87.6 22.0 79.4 22.9 74.4 23.4
20.0 112.6 17.7 109.0 19.6 105.4 21.4 101.8 23.3 91.3 23.7 85.1 24.0

RC(H)UA130AVMY (Full load operation)

Outdoor ambient temperature (℃)
20.0 25.0 30.0 35.0 40.0 43.0
OWT
CCAP IPT CCAP IPT CCAP IPT CCAP IPT CCAP IPT CCAP IPT

5.0 144.9 32.9 136.1 34.7 127.4 36.6 118.7 38.5 110.8 42.4 106.1 44.8
7.0 155.6 33.2 147.1 35.3 138.5 37.5 130.0 39.6 120.4 43.1 114.6 45.2
9.0 166.3 33.5 158.0 35.9 149.7 38.3 141.3 40.7 130.0 43.8 123.1 45.6
12.0 182.4 34.0 174.4 36.8 166.3 39.5 158.3 42.3 144.3 44.8 135.9 46.2
15.0 198.5 34.5 190.8 37.7 183.0 40.8 175.3 43.9 158.7 45.8 148.8 46.9
20.0 225.3 35.4 218.1 39.1 210.8 42.9 203.6 46.6 182.7 47.4 170.1 47.9

RC(H)UA150AVMY (Full load operation)

Outdoor ambient temperature (℃)
20.0 25.0 30.0 35.0 40.0 43.0
OWT
CCAP IPT CCAP IPT CCAP IPT CCAP IPT CCAP IPT CCAP IPT

5.0 167.2 40.4 157.1 42.7 147.0 45.0 136.9 47.3 127.8 52.1 122.4 55.0
7.0 179.5 40.8 169.7 43.4 159.8 46.0 150.0 48.7 138.9 52.9 132.2 55.5
9.0 191.9 41.2 182.3 44.1 172.7 47.1 163.1 50.0 149.9 53.8 142.1 56.0
12.0 210.5 41.8 201.2 45.2 191.9 48.6 182.7 52.0 166.5 55.0 156.9 56.8
15.0 229.0 42.5 220.1 46.3 211.2 50.1 202.3 54.0 183.1 56.2 148.8 46.9
20.0 260.0 43.5 251.6 48.1 243.3 52.7 234.9 57.3 182.7 47.4 170.1 47.9

6
Cooling capacity [kW] Cooling capacity chart according to the outside temperature and chilled water outlet
temperature
Air cooled - Modular Scroll Inverter water chiller RCUA150AVMY

270.0
OWT = 5.0oC OWT = 7.0oC
OWT = 9.0oC OWT= 12.0oC
250.0 OWT= 15.0oC OWT= 20.0oC
Poly. (OWT = 5.0oC) Poly. (OWT = 7.0oC)

230.0

210.0

190.0
179.5

170.0 169.7

159.8
150.0
150.0
138.9

130.0 132.2

Temp:
Cap:
110.0
20.0 25.0 30.0 35.0 40.0 43.0 Ambient outside temperature [oC] Cap: