Emerson H-series Scroll Condensing Units Instruction Manual (+ PDF)

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H-series Scroll Condensing Units

Product Information:

The H-series condensing units are high efficiency outdoor scroll
condensing units designed for various applications such as Quick
Service Restaurants (QSRs), Convenience Stores (C-stores), hotels,
and supermarkets. These units are equipped with pioneering
technologies to provide best-in-class performance, specifically
addressing the challenges associated with operating in the Middle
East region. The key features and benefits of these units include
high efficiency, reliability, energy efficiency, aesthetics, and
factory-fitted line components.

The H-series condensing units are available in different
configurations based on the application requirements. They are
designed to operate in dusty and high ambient conditions, making
them suitable for challenging environments. The units prioritize
energy efficiency to optimize power consumption. They also take
into account the high premium on retail spaces, offering a slim
profile and various mounting options. The units are designed for
reliability, with features such as internal thermal protectors and
EVI CoreSense kits to control superheat and maintain safe discharge
temperature. Additionally, the H-series condensing units come with
factory-fitted line components for ease of installation and
maintenance.

Product Usage Instructions:

1. Installation:

Choose a suitable location for the condensing unit, considering
factors such as accessibility and adequate ventilation.
Select the appropriate mounting option (front/roof/ground/wall)
based on the installation requirements.
Ensure that the unit is securely mounted and leveled.
Connect the condensing unit to the necessary power supply
according to the unit voltage code provided.
If connecting multiple evaporators, ensure that the lowest load
operation is at least 35% of the total load.

2. Operation:

Ensure that the condensing unit is properly connected to the
refrigeration system, including the evaporators.
Check that all the necessary line components, such as filter
drier, sight glass, oil separator, and suction accumulator, are
installed as per the standard scope of supply.
Monitor the unit’s performance and adjust the adjustable
pressure control if necessary.
Regularly inspect the unit for any signs of abnormal operation,
such as overheating or high current.

3. Maintenance:

Follow the recommended maintenance schedule provided in the
user manual.
Clean the condenser block and fan motor regularly to ensure
optimal performance.
Inspect and replace any worn-out or damaged components, such as
the liquid receiver, HP safety cartridge switch, and adjustable LP
control switch.
If required, access the pre-wired Electric Junction box for any
electrical maintenance.

By following these usage instructions, you can effectively
utilize the H-series condensing units for your specific application
needs. For detailed troubleshooting or further assistance, refer to
the user manual or contact our customer support.

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High efficiency outdoor scroll condensing units
for QSRs, C-stores, hotels and supermarket applications

Pioneering technologies for best-in-class products
that tackle challenges associated with operating a unit in the Middle East region.

DUSTY AND HIGH AMBIENT CONDITIONS

ENERGY EFFICIENCY

HIGH PREMIUM ON RETAIL SPACES

UNIT SOUND

AESTHETICS

RELIABILITY

FACTORY FITTED LINE COMPONENTS

In order to address all the above challenges experienced by the end customer, Emerson has introduced the H-series condensing units.

Nomenclature
H M X A – 0 15 – T F M – 5 1 1

Family series H – series

Platform

Revision no. Nominal HP 015: 1.5HP

Bill of material Scope of supply

Code M L D

Application range

Application Medium temperature Low temperature

Refrigerant R-404A R-404A

Dual temperature

R-404A

Code TFM

Unit voltage code Voltage supply-phase
400 V ±10 % – 3~ – 50Hz

511 Filter drier, Moisture Indicator, Liquid receiver, Suction & Liquid Line Service Valves, HP Cutout, Adjustable LP Cutout. 513 Filter drier, Moisture Indicator, Liquid receiver, Suction & Liquid Line Service Valves, HP Cutout, Adjustable LP Cutout, Oil separator, Suction accumulator, Coresense / Injection Management Module, Sub cooler, Vapour injection Expansion valve.

H-Series Internal Layout

Condenser Block

CoreSense / Injection Management

Fan Motor Liquid Receiver

Receiver Out Service Valve Oil Sight Glass

Key features & benefits of scroll units:

Efficiency

– High efficiency CopelandTM ZFIVapor injection compressor. – Specially designed condenser.

Oil Separator
Suction Accumulator
Moisture Indicator
Liquid Line Filter Drier
Scroll Compressor
Adjustable Pressure Control
Suction & Liquid Line Service Valves

Reliability

– Compressor is provided with Emerson EVI CoreSenseTM kits to control superheat of vapor injection and to maintain safe discharge temperature.
– Fully featured options such as filter drier, sight glass, oil separator and suction accumulator available as standard scope of supply in dual temperature models.
– Compressors are supplied with internal thermal protectors that safeguards against motor overheating and high current

Envelope

– Unique operating envelope (-40°C to 7°C evaporating temperatures) and up to 49°C ambient, providing a broad range of selection.

Inventory

– Same Units for Medium Temperature and Low Temperature units for majority of the range resulting in rationalization of unit inventory.

Maintenance

– Optimal layout of components for easy serviceability. – Pre-wired Electric Junction box. – Liquid receiver, HP safety cartridge switch and adjustable LP control switch.

Footprint

– Slim profile, light weight and front/roof/ground/wall mount options.

Multi-evaporator – One condensing unit could be connected to multiple
evaporators. The lowest load operation should be more than 35% of the total load.

The various components that comprise the scroll condensing unit and their features are as follows:
Compressor
Efficiency – Vapor injection technology improves system capacity by upto 30% and efficiency by upto 20%. – New valving technology adjusts the scroll compression ratio based on operating condition,
significantly improving performance
Reliability – Dual Compliance: The ability of scroll to move in both axial and radial directions helps in better liquid
and debris handling. – EVI CoreSense Controller ensures constant superheat of vapor being injected during normal operation
and contributes to safe control of discharge line temperature.
Smooth Operation – Scroll compressor has an inbuilt check valve that isolates high pressure gas, allowing the compressor
to start unloaded with low inrush currents. – Less vibration
Scroll Wear-In – Scroll involutes of Copeland scroll compressor wear in, rather than wear out – No constant degradation of performance with time
Compactness – Small footprint of Copeland scroll compressors enables compact system designs, reducing weight and
dimensions
Condenser
Internally grooved copper tubes with hydrophilic coated aluminium fins.
Fan motors
Thermally protected, single-phase fans.
Operation with one of the approved oils is necessary and suitable identification of the specific oil usage is mandatory to prevent unauthorized lubricant oils from being filled into the system.
4

Performance data

R404A

Unit Model number of fans HMXA-015-TFM-511 1 HLXA-015-TFM-511 1 HMXA-020-TFM-511 1

Ambient temperature

Evaporating temperature (°C)

(°C)

-40

-35

-30

-25

-20

-15

-10

-5

1.85 2.25 2.69 3.19 3.74 4.36 4.62

1.77 2.15 2.57 3.04 3.57 4.16 4.41

1.63 1.97 2.36 2.79 3.28 3.81 4.04

1.54 1.86 2.23 2.64 3.09 3.60 3.82

1.75 2.09 2.47 2.91 3.38 3.59

1.22 1.28 1.33 1.37 1.39 1.41 1.42

1.28 1.35 1.40 1.44 1.47 1.49 1.50

1.39 1.47 1.52 1.57 1.60 1.63 1.63

1.46 1.54 1.60 1.65 1.69 1.71 1.72

1.62 1.69 1.74 1.78 1.81 1.81

0.97 1.22 1.52 1.87 2.28 2.75

0.93 1.16 1.44 1.77 2.16 2.60

0.85 1.06 1.31 1.61 1.95 2.36

0.81 1.00 1.23 1.51 1.83 2.21

0.77 0.94 1.15 1.41 1.71 2.06

1.27 1.36 1.45 1.55 1.65 1.73

1.35 1.43 1.52 1.62 1.72 1.81

1.48 1.56 1.65 1.75 1.85 1.94

1.57 1.65 1.74 1.83 1.93 2.03

1.67 1.74 1.83 1.92 2.02 2.12

2.28 2.81 3.38 4.00 4.67 5.39 5.69

2.12 2.62 3.16 3.75 4.39 5.07 5.35

1.82 2.29 2.79 3.33 3.90 4.52 4.77

1.64 2.08 2.56 3.06 3.60 4.18 4.42

1.86 2.31 2.79 3.29

1.90 1.90 1.90 1.91 1.92 1.95 1.96

2.07 2.06 2.06 2.05 2.05 2.08 2.09

2.40 2.37 2.35 2.33 2.31 2.32 2.33

2.63 2.59 2.55 2.52 2.49 2.49 2.49

2.83 2.78 2.73 2.69

Q (kW) = Capacity P (kW) = Power input

Suction Return Temperature: 20.0°C Suction Return Temperature: 0.0°C

Performance data

R404A

Unit Model number of fans HLXA-020-TFM-511 1 HDXA-030-TFM-513 1 HDXA-040-TFM-513 1

Ambient temperature

Evaporating temperature (°C)

(°C)

-40

-35

-30

-25

-20

-15

-10

-5

1.34 1.66 2.07 2.55 3.11 3.73

1.28 1.58 1.96 2.42 2.94 3.53

1.18 1.45 1.79 2.20 2.66 3.19

1.12 1.37 1.68 2.06 2.50 2.99

1.06 1.29 1.58 1.92 2.33 2.78

1.68 1.83 1.98 2.13 2.27 2.37

1.77 1.92 2.08 2.24 2.37 2.47

1.94 2.09 2.26 2.41 2.55 2.65

2.05 2.20 2.37 2.53 2.66 2.76

2.17 2.32 2.49 2.65 2.78 2.88

1.76 2.02 2.42 2.94 3.46 4.11 4.79 5.49 6.17 6.82 7.06

1.64 1.90 2.29 2.78 3.36 4.00 4.67 5.35 6.01 6.64 6.87

1.49 1.75 2.14 2.62 3.18 3.80 4.45 5.10 5.73 6.32 6.55

1.38 1.64 2.03 2.51 3.06 3.67 4.30 4.94 5.55 6.13 6.34

1.27 1.53 1.91 2.29 2.93 3.53 4.15 4.77 5.37

1.42 1.53 1.63 1.73 1.93 2.05 2.18 2.33 2.50 2.70 2.80

1.58 1.70 1.82 1.92 2.04 2.16 2.29 2.44 2.61 2.82 2.91

1.78 1.90 2.02 2.14 2.25 2.38 2.51 2.67 2.84 3.04 3.13

1.92 2.05 2.17 2.29 2.41 2.54 2.67 2.83 3.00 3.20 3.29

2.08 2.22 2.34 2.49 2.59 2.72 2.86 3.01 3.19

2.37 2.73 3.26 3.95 4.64 5.51 6.43 7.35 8.26 9.11 9.43

2.20 2.55 3.07 3.74 4.51 5.36 6.26 7.16 8.04 8.86 9.17

2.00 2.35 2.87 3.52 4.27 5.09 5.95 6.82 7.66 8.44 8.73

1.86 2.21 2.72 3.36 4.10 4.91 5.75 6.60 7.42 8.17

1.70 2.05 2.44 3.06 3.93 4.72 5.55 6.37 7.17

1.70 1.84 1.96 2.09 2.34 2.48 2.65 2.84 3.05 3.31 3.42

1.91 2.06 2.20 2.33 2.47 2.62 2.79 2.98 3.20 3.45 3.56

2.14 2.30 2.45 2.59 2.74 2.90 3.07 3.26 3.48 3.73 3.84

2.31 2.47 2.63 2.78 2.93 3.10 3.27 3.47 3.69 3.93

2.51 2.68 2.85 3.02 3.16 3.32 3.50 3.70 3.92

Q (kW) = Capacity P (kW) = Power input

Suction Return Temperature: 20.0°C Suction Return Temperature: 0.0°C

Performance data

R404A

Unit Model number of fans
HDXA-050-TFM-513
2
HDXA-065-TFM-513
2
HDXA-075-TFM-513
2 Q (kW) = Capacity P (kW) = Power input

Ambient temperature

Evaporating temperature (°C)

(°C)

-40

-35

-30

-25

-20

-15

-10

-5

2.92 3.36 4.02 4.88 5.75 6.84 7.99 9.17 10.33 11.43 11.85

2.73 3.16 3.81 4.64 5.60 6.67 7.80 8.94 10.07 11.14 11.54

2.50 2.93 3.57 4.38 5.32 6.36 7.44 8.54 9.62 10.63 11.01

2.33 2.77 3.40 4.20 5.13 6.15 7.21 8.29 9.33 10.31 10.68

2.14 2.58 3.21 4.01 4.92 5.92 6.97 8.02 9.04 9.99

2.17 2.32 2.47 2.61 2.89 3.05 3.24 3.45 3.70 4.00 4.13

2.40 2.58 2.73 2.89 3.04 3.21 3.40 3.61 3.86 4.16 4.29

2.67 2.85 3.02 3.18 3.35 3.52 3.71 3.92 4.17 4.46 4.59

2.87 3.06 3.23 3.40 3.56 3.74 3.93 4.15 4.39 4.68 4.80

3.10 3.30 3.48 3.65 3.82 3.99 4.19 4.40 4.65 4.92

3.79 4.28 4.98 5.87 6.86 8.08 9.47 11.00 12.66 14.43 15.17

3.78 4.22 4.87 5.72 6.76 7.96 9.32 10.82 12.45 14.20 14.92

3.78 4.18 4.78 5.59 6.58 7.74 9.05 10.50 12.08 13.77 14.48

3.79 4.15 4.73 5.51 6.47 7.59 8.87 10.29 11.84 13.50 14.19

3.79 4.13 4.67 5.42 6.34 7.44 8.69 10.07 11.58 13.21

2.64 2.80 2.96 3.12 3.47 3.65 3.84 4.03 4.22 4.41 4.49

2.93 3.11 3.30 3.49 3.67 3.87 4.06 4.26 4.46 4.66 4.74

3.22 3.43 3.64 3.84 4.05 4.26 4.48 4.69 4.91 5.12 5.21

3.43 3.65 3.87 4.09 4.31 4.53 4.76 4.98 5.20 5.43 5.52

3.66 3.90 4.13 4.36 4.59 4.83 5.06 5.30 5.53 5.76

4.78 5.39 6.26 7.38 8.60 10.13 11.85 13.75 15.80 17.98 18.89

4.77 5.32 6.13 7.19 8.47 9.97 11.66 13.51 15.53 17.67 18.57

4.77 5.26 6.02 7.02 8.24 9.68 11.30 13.09 15.04 17.11 17.98

4.78 5.23 5.95 6.91 8.10 9.49 11.07 12.82 14.72 16.75

4.79 5.12 5.75 6.62 7.94 9.29 10.82 12.53 14.38

3.25 3.46 3.67 3.88 4.35 4.59 4.85 5.11 5.38 5.65 5.76

3.62 3.86 4.10 4.35 4.61 4.87 5.14 5.41 5.69 5.98 6.09

4.00 4.27 4.54 4.82 5.10 5.38 5.68 5.97 6.28 6.58 6.71

4.27 4.55 4.84 5.13 5.43 5.73 6.04 6.35 6.67 6.99

4.57 5.02 5.31 5.61 5.80 6.12 6.44 6.77 7.10

Suction Return Temperature: 20.0°C Suction Return Temperature: 0.0°C

Performance data

R22

Unit Model number of fans

Ambient temperature

Evaporating temperature (°C)

(°C)

-40

-35

-30

-25

-20

-15

-10

-5

1.37 1.68 2.06 2.51 3.03 3.64 4.32 5.09 5.94 6.88 7.28

1.30 1.62 2.00 2.44 2.95 3.54 4.21 4.95 5.77 6.67 7.05

1.26 1.57 1.94 2.38 2.88 3.45 4.09 4.81 5.60 6.46 6.83

1.23 1.54 1.90 2.33 2.83 3.39 4.02 4.72 5.49 6.33

HDXA-030-TFM-513

1.20 1.51 1.87 2.29 2.77 3.32 3.93 4.61 5.36

1.25 1.33 1.42 1.51 1.62 1.74 1.86 2.01 2.18 2.36 2.44

1.38 1.46 1.55 1.65 1.76 1.88 2.01 2.17 2.34 2.53 2.61

1.52 1.60 1.68 1.78 1.90 2.02 2.16 2.32 2.49 2.69 2.78

1.61 1.69 1.78 1.88 1.99 2.12 2.26 2.42 2.60 2.81

1.72 1.80 1.88 1.98 2.10 2.23 2.37 2.54 2.73

1.82 2.23 2.73 3.33 4.02 4.82 5.73 6.74 7.86 9.09 9.61

1.72 2.15 2.65 3.23 3.92 4.69 5.57 6.55 7.62 8.80 9.30

1.66 2.08 2.57 3.15 3.81 4.57 5.42 6.36 7.39 8.52 9.00

1.63 2.04 2.53 3.09 3.75 4.48 5.31 6.23 7.24 8.33

HDXA-040-TFM-513

1.60 2.00 2.48 2.85 3.67 4.39 5.20 6.09 7.07

1.50 1.59 1.70 1.82 1.94 2.09 2.25 2.44 2.64 2.87 2.97

1.66 1.76 1.86 1.98 2.12 2.27 2.43 2.62 2.84 3.08 3.18

1.82 1.92 2.03 2.15 2.28 2.44 2.61 2.81 3.03 3.29 3.39

1.93 2.03 2.14 2.26 2.40 2.56 2.74 2.94 3.17 3.43

2.06 2.16 2.27 2.41 2.54 2.70 2.88 3.09 3.33

2.23 2.74 3.35 4.09 4.94 5.93 7.05 8.31 9.71 11.25 11.90

2.12 2.63 3.25 3.97 4.82 5.78 6.87 8.09 9.45 10.95 11.55

2.04 2.55 3.16 3.87 4.70 5.64 6.69 7.88 9.19 10.65 11.25

2.00 2.51 3.11 3.81 4.62 5.54 6.58 7.73 9.01 10.40 11.00

HDXA-050-TFM-513

1.96 2.46 3.05 3.74 4.53 5.43 6.44 7.57 8.82 10.20

1.92 2.03 2.15 2.29 2.44 2.61 2.80 3.01 3.25 3.51 3.63

2.11 2.23 2.35 2.49 2.65 2.82 3.01 3.23 3.47 3.74 3.86

2.30 2.42 2.54 2.68 2.84 3.02 3.22 3.44 3.69 3.97 4.09

2.43 2.55 2.67 2.82 2.98 3.16 3.36 3.59 3.84 4.13 4.25

2.58 2.70 2.82 2.97 3.13 3.31 3.52 3.75 4.01 4.31

Q (kW) = Capacity P (kW) = Power input

Suction Return Temperature: 20.0°C Suction Return Temperature: 0.0°C

Performance data

R22

Unit Model number of fans

Ambient temperature

Evaporating temperature (°C)

(°C)

-40

-35

-30

-25

-20

-15

-10

-5

2.60 3.29 4.10 5.02 6.07 7.25 8.58 10.05 11.70 13.50 14.25

2.54 3.23 4.02 4.92 5.93 7.08 8.35 9.78 11.35 13.05 13.80

2.48 3.16 3.94 4.81 5.80 6.91 8.15 9.52 11.05 12.70 13.40

2.43 3.11 3.88 4.74 5.71 6.80 8.01 9.36 10.85 12.45 13.15

HDXA-065-TFM-513

2.38 3.05 3.81 4.66 5.61 6.68 7.87 9.19 10.65 12.25

2.39 2.50 2.61 2.73 2.87 3.03 3.21 3.42 3.66 3.93 4.04

2.65 2.78 2.91 3.05 3.20 3.37 3.56 3.77 4.01 4.28 4.40

2.88 3.04 3.19 3.35 3.51 3.69 3.89 4.11 4.36 4.63 4.75

3.04 3.21 3.38 3.55 3.72 3.91 4.11 4.34 4.59 4.87 4.99

3.21 3.40 3.58 3.76 3.95 4.15 4.36 4.59 4.85 5.13

3.40 4.32 5.37 6.57 7.93 9.46 11.20 13.10 15.15 17.45 18.40

3.33 4.23 5.26 6.43 7.74 9.22 10.85 12.70 14.70 16.90 17.85

3.24 4.14 5.14 6.28 7.56 8.99 10.60 12.35 14.30 16.40 17.30

3.18 4.06 5.06 6.18 7.44 8.84 10.40 12.10 14.00 16.10

HDXA-075-TFM-513

3.10 3.98 4.89 6.05 7.30 8.68 10.20 11.90 13.75

3.01 3.16 3.31 3.48 3.68 3.89 4.14 4.43 4.75 5.12 5.28

3.34 3.52 3.70 3.90 4.11 4.34 4.61 4.90 5.24 5.61 5.77

3.65 3.86 4.07 4.29 4.52 4.78 5.06 5.37 5.71 6.10 6.26

3.85 4.08 4.32 4.55 4.80 5.07 5.36 5.68 6.03 6.43

4.07 4.33 4.63 4.80 5.10 5.38 5.68 6.02 6.38

Q (kW) = Capacity P (kW) = Power input

Suction Return Temperature: 20.0°C Suction Return Temperature: 0.0°C

Mechanical data

Condensing Unit
HMXA-015-TFM-511 HLXA-015-TFM-511 HMXA-020-TFM-511 HLXA-020-TFM-511 HDXA-030-TFM-513 HDXA-040-TFM-513 HDXA-050-TFM-513 HDXA-065-TFM-513 HDXA-075-TFM-513

Compressor model
ZS11KAE-TFD-600 ZF06KAE-TFD-618 ZB15KQE-TFD-558 ZF09KAE-TFD-618 ZFI09KQE-TFD-550 ZFI13KQE-TFD-550 ZFI17KQE-TFD-550 ZFI21KQE-TFD-550 ZFI23KQE-TFD-550

Receiver Volume
(l)

Air Flow (m³/s)

Dimensions Depth/Width/Height
(mm)

Suction Size

Liquid Size

Net Weight (kg)

4.8

0.81

424 x1029 x 840

3/4″

1/2″

4.8

0.81

424 x1029 x 840

3/4″

1/2″

4.8

0.81

424 x1029 x 840

3/4″

1/2″

4.8

0.81

424 x1029 x 840

3/4″

1/2″

4.8

0.81

424 x1029 x 840

3/4″

1/2″

4.8

0.81

424 x1029 x 840

3/4″

1/2″

6.9

1.64

424 x1029 x1242

7/8″

1/2″

106

6.9

1.64

424 x1029 x1242

7/8″

1/2″

120

6.9

1.64

424 x1029 x1242

7/8″

1/2″

125

Electrical data
Condensing Unit HMXA-015-TFM-511 HLXA-015-TFM-511 HMXA-020-TFM-511 HLXA-020-TFM-511 HDXA-030-TFM-513 HDXA-040-TFM-513 HDXA-050-TFM-513 HDXA-065-TFM-513 HDXA-075-TFM-513

Compressor model ZS11KAE-TFD-600 ZF06KAE-TFD-618 ZB15KQE-TFD-558 ZF09KAE-TFD-618 ZFI09KQE-TFD-550 ZFI13KQE-TFD-550 ZFI17KQE-TFD-550 ZFI21KQE-TFD-550 ZFI23KQE-TFD-550

Unit MOC 4.2 5.1 5.8 6.2 6.2 7.5 9.8 12.6 14.1

Compressor

LRA

MOC

RLA

27.0

3.3

4.3

28.0

4.2

3.8

26.0

4.9

5.0

41.6

5.3

4.9

23.5

5.3

4.9

40.0

6.6

6.4

50.0

8.1

6.9

64.0

10.9

8.9

74.0

12.4

10.6

Total Fan Current
0.87 0.87 0.87 0.87 0.87 0.87 1.74 1.74 1.74

Container fitment
Condensing unit model
HMXA-015-TFM-511 HLXA-015-TFM-511 HMXA-020-TFM-511 HLXA-020-TFM-511 HDXA-030-TFM-513 HDXA-040-TFM-513 HDXA-050-TFM-513 HDXA-065-TFM-513 HDXA-075-TFM-513

Number of fans
1 1 1 1 1 1 2 2 2

20 ft. container
40 40 40 40 40 40 20 20 20

40 ft. container
80 80 80 80 80 80 40 40 40

Dimensional drawings

500 840 300

1029 70

500

352

300

Power Supply Hole Suction Service Valve
Liquid Service Valve

500

94
172 90 424

388 2-R7.5MM GROOVE

2 HOLESØ15MM DIA
110 580
Single Fan Unit 1.5 – 4 HP

500 1029

500

352

300

1242

300

Power Supply Hole Suction Service Valve
Liquid Service Valve

500

94
172 90 424

388 2-R7.5MM GROOVE

2 HOLESØ15MM DIA
110 580
Dual Fan Unit 5 – 7.5 HP

Application guidelines
Multi-evaporator guidelines The evaporators being connected to the condensing unit are required be of similar evaporating temperatures (For Example: Combi Freezer). The lowest load operation should be more than 35% of total load.
Liquid line insulation for HDX units Liquid line should be insulated for all HDX models with a 19 mm insulation thickness during the installation. Temperature could be as low as 15°C.
Condensing unit on rubber pads Please ensure that the condensing units are mounted on the rubber pads and not mounted directly on the concrete platform or welded directly on any frame.
Auto cycling HP cutout
As our condensing units are provided with Auto reset HP cutout, please ensure that the controller used in the system takes care of short cycling through HP cutout. Frequent cycling leads to oil getting pumped out of the compressor

Continuous pump down cycle Wherever pump down cycle is provided, please ensure that this is of one time pump down cycle. In case of continuous pump down, any minor leakage in the liquid line solenoid valve or system with larger refrigerant charge might lead to frequent cycling of compressor during thermostat OFF cycle. Short cycling protection is required when continuous pump down is implemented.
LP cutout adjustment
Our LP cutout is with the factory default values. Please ensure that these are adjusted as per the application

switch for proper operation of the cutouts.

Reverse rotation · Scroll compressors pump in one direction only
Low current More noise Balanced suction & discharge pressure

· Correct by interchanging any two phases · Short term reverse rotation will not damage the
compressor

Refrigerant charging
· Pre-charging must be with liquid refrigerant through the liquid line or the liquid receiver. At least 70% of the refrigerant to be pre charged in the system before starting the compressor.
· Additional charge to be added as controlled liquid in the suction side. Please don’t bypass the HP/LP cutout during charging process.

Disclaimer
Technical data given was correct at the time of printing. Products, specifications and data in this literature are subject to change without prior notice. Updates will be done periodically. Should you need clarification of a specific data, value or information, kindly contact Emerson representative.

Contact list
United Arab Emirates Jebel Ali Free Zone P.O. Box 26382, Dubai United Arab Emirates Toll Free: 8000 441 3428 Tel: +971 4 8118100 Fax: +971 4 8865465

Saudi Arabia P.O. Box 34332 – 3620 2nd Industrial City, 67 St. Dammam, Saudi Arabia Toll Free: 8008 443 426 Tel: +966 3 8147560 Fax: +966 3 8147570

South Africa 11 Quark Crescent Linbro Business Park Sandton 2065, South Africa Toll Free: 0800 980 3711 Tel: +27 11 451 3700 Fax: +27 11 451 3800

Egypt P.O.Box 11799 11 Mustafa Refaat Street Sheraton, Heliopolis Cairo, Egypt Tel: +20 2 226 5854

2201/MEA/R/3/CDU/103/50 internal-reference-doc
Suction Return Temperature: 20.0°C

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