Cooper & Hunter V Series Manual de usuario

Applicable Models (VSeries):

CH-HRV3.5K

CH-HRV5K

CH-HRV8K

CH-HRV10K

CH-HRV15M

CH-HRV20M

Energy Recovery Ventilation

System

Commercial Air Conditioners

Owner's Manual

Thank you for choosing commercial air conditioners.

Please read this Owner’s Manual carefully before operation and retain it for

future reference.

If you have lost the Owner's Manual, please contact the local agent or visit www.

cooperandhunter.com.

Contents

1. Preface ........................................................................................................... 1

2. Introduction to Product ................................................................................... 1

2.1 Main Features ............................................................................................ 1

2.2 Features of Structure.................................................................................. 2

3. Control............................................................................................................ 3

3.1 Operation Instructions ................................................................................ 3

4. Outline Dimensions ........................................................................................ 8

5. Installation Instructions................................................................................... 9

5.1 General....................................................................................................... 9

5.2 Engineering Design .................................................................................... 9

5.3 Installation Diagram.................................................................................. 11

6. On-site Construction..................................................................................... 12

6.1 Installation of the Controller...................................................................... 12

6.2 Fabrication of the Duct ............................................................................ 12

7. On-site Construction Requirements ............................................................. 14

8. Electric Wiring.............................................................................................. 15

8.1 Wiring Installation ..................................................................................... 16

8.2 Grounding................................................................................................. 16

8.3 Trial Run and Routine Maintenance ......................................................... 17

8.4 Troubleshooting........................................................................................ 18

9. Safety Precautions ....................................................................................... 18

10. Technical Datasheet ................................................................................... 20

Energy Recovery Ventilation System

1. Preface

This product complies with the national standard GB/T 21087-2007.

Modern civilization has brought more and more adverse effects to our living environment. With

more and more wider application of the air conditioning and kinds of synthetic building materials,

popularization of modern ofce equipment, enhancement of air tightness of the building, reduction

of fresh air volume for energy saving and cost cutting, harmful gases and biologic pollutants inside

the building cannot be diluted or discharged properly. Recently, healthy, energy-saving, simple and

reliable fresh air system and equipment have become the focus for the HVAC engineers and users.

Cooper&Hunter is a perfect solution for problems stated above for its dual-direction ventilation, that

is, it can bring fresh air inside and meanwhile discharge polluted air outside. During ventilation, the

high-efciency heat-recovery equipment can keep the indoor temperature unchangeable.

Besides, the equipped air lter can effectively lter air going inside. In short, new technologies and

new materials make this new product of low energy consumption, excellent performance, now

noise and simple installation etc.

2. Introduction to Product

2.1 Main Features

(1) Dual-ventilation

It can bring fresh air inside and deliver polluted air outside, which makes the users always feel

natural comfort.

(2) Energy Recovery

During ventilation, imported air and exported air will make heat exchanger, and 70% of heat will

be recovered.

(3) Low Noise

The specialized low-noise fan is used.

(4) Air Filtering

The internal air lter can guarantee the imported air clean and dustless.

(5) Large lineup

The large lineup can satisfy various

Energy Recovery Ventilation System

2.2 Features of Structure

ERV mainly consists of the main unit and the control.

◆Main Unit

The main unit mainly consists of the centrifugal fan and the heat exchanger. Air before going

inside the heat exchanger will pass through the lter, where dust particles and bers will be sorted

out. The internal air lter can be taken out from the access door. At the joint between the outer

casing and the access door, there is long-lasting sealing material, which can make the whole

cabinet airtight. The hot galvanized steel outer casing and insulation sponge attached to the

external surface can absorb noise produced by the fan and also prevent dewing in summer.

Figure 1 Main Structure of CH-HRV Series

Energy Recovery Ventilation System

3. Control

3.1 Operation Instructions

Caution!

◆Do not install the control at the humid area.

◆Do not beat, toss or frequently turn on/off this control.

Figure 2 Front Panel of the Control

1 Timing set point 10 Mode key

2 Energy saving status 11 Humidity increasing key

3 Humidity set point 12 Humidity decreasing key

4 Environment temperature 13 Fan speed key

5Air mode status (fresh air, discharge air,

supply air) 14 Switching key

6 Fan speed status (hi/medium/low) 15 Timing key

7Mode status (Auto, Bypass, Heat

exchange) 16 On/Off key

8 Error status 17 Reset key

9 Filter cleaning status 18 Child lock icon

Note: for CH-HRV15 and CH-HRV20, there is no discharge air and supply air modes for the

item number 5 and fan speed is uncontrolled for the item number 6.

Energy Recovery Ventilation System

3.1.1 On/Off

Figure 3

◆By pressing the On/Off key, it is able to start/stop the control.

◆Under the “Off” status, pressing the “Mode” key for 5 seconds can activate the memory

function upon power failure, In this case, when 01 is displayed at the temperature set point

area, it indicates the memory function has been activated. When 02 is displayed, the memory

function has been deactivated. Then, by pressing the ‘On/Off” key, this setting can exit. At

the setting page, if there is not any operation during 20 seconds, the control will back to the

normal “Off” status. The memory function is defaulted to be deactivated.

3.1.2 Control to the Fan Speed

Figure 4 Figure 5

◆As shown in the gure 4, under the fresh air mode, by pressing the “Fan” key, the fan speed

will change circularly from low speed to medium speed to high speed, which however is

unavailable for CH-HRV15 and CH-HRV20.

◆As shown in the gure 5, under discharge or supply air modes, by pressing the “Fan” key, the

fan speed will switch between low and high speed, which is also unavailable for CH-HRV15

and CH-HRV20.

Energy Recovery Ventilation System

3.1.3 Control to Humidity

Figure 6

◆For the unit with humidifying function, pressing the “▲” key will increase the humidity set

point; while pressing the “▼” key will decrease the humidity set point. Each press will make

the set point change by 5%.

◆When pressing the “▲” and “▼” keys at the same time for ve seconds, “EE” and a lock icon

will be displayed. In this case, all key operation will be deactivated. Then, by pressing the “▲”

and “▼” keys at the same time for ve seconds again, the lock function will be deactivated.

◆When the control is deactivated by remote monitoring or central control, “CC” will be

displayed and all key operation and remote signals are invalid.

◆The humidity range is 30%-70% (RH).

3.1.4 Switch/Reset

Figure 7

◆When it is required to clean the unit, the beeper will raise an alarm for 30s. In this case, by

pressing the “Reset” key for five seconds, the runtime for cleaning will become zero, the

beeper will stop and the cleaning symbol will disappear.

◆When the unit is turned on, by pressing the “Timer” key and then quickly pressing the “Switch”

key, it will switch to timer for stopping the unit, timer for activating energy saving, timer for

deactivating energy saving, and timer for cleaning circularly.

Energy Recovery Ventilation System

3.1.5 Run Mode

Figure 8

◆By pressing the “Mode” key, the run mode will change circularly from automatic to bypass to

heat exchange.

◆Under the automatic mode, “AUTO” will light on and the system will operates base on indoor

and outdoor temperatures as well as the temperature difference.

◆Under the bypass mode, “BYPASS” will light on. When the damper is opened, the fan will

work based on the air mode and fan speed settings. This mode is generally applicable to

transitional seasons and will extend the service life of the heat exchanging core.

◆Under the heat exchange mode, “HEAT EXCHANGE” will light on. When the damper is

closed, the fan will work based on the air mode and fan speed settings. In this mode, it can

realize all heat exchange for fresh air, saving more energy and being much healthier.

3.1.6 Timer

Figure 9

◆When the unit is off, by pressing the “Timer” key, the unit can be timed on. When the unit

is on, by pressing the “Timer” key, the unit can be timed off and energy saving function

and cleaning function can be timed on separately. Under the setting status, “TIMER”, “HR”

and the setting value will blink. At this point, by pressing the “▲” /“▼” key, the setting value

will increase or decrease by 0.5 hours at a time. Then, by pressing the “Timer” key, this

setting will become valid. When the timer works, by pressing the “Timer” key again, it will be

Energy Recovery Ventilation System

canceled.

◆The setting rang for timing the unit on/off is 0.5~24 hours.

◆The setting range for timing the energy saving function on is 2~5 hours. The default setting is

2 hours.

◆The setting range for timing the energy saving function off is 1~4 hours. The default setting

is 1 hour. Only when this timing expires, energy saving function can be timed on by pressing

“Fan” and “▼” at the same time for ve seconds.

◆The setting range for timing the cleaning function on/off is 1250 hours, 2500 hours and a

variable to be determined. The default setting is 1250 hours.

◆Only when the timer works, the setting value will decrease with time.

3.1.7 Environment Humidity

◆Generally, it indicates the indoor environment humidity.

Note: for the unit with humidifying function, the humidity will be displayed only when this

function is activated.

3.1.8 Humidifying On/Off

◆By pressing the “Mode” and “▼” key at the same time for five seconds, the humidifying

function will be switched to be on or off alternatively.

◆For the unit with the humidifying function, only it has been activated, both the indoor humidity

and humidity set point will be displayed. This function is defaulted to be off. In the dry

seasons, it is suggested to activate this function.

3.1.9 Air Mode

◆By pressing the “Mode” and “▲” keys at the same time for five seconds, fresh air mode,

discharge air mode and supply air mode can be switched circularly. See gure 2 for more

details. The air mode is decided by the user. When positive pressure is required indoor,

supply air mode is satisfactory. When negative pressure is required, discharge air mode is

favorable. In generally, fresh air mode is satisfactory.

3.1.10 Energy Saving

◆By pressing the “Fan” and “▲” keys at the same time for ve seconds, the energy saving

function can be switched on or off alternatively. When this function has been activated, “SAVE”

will be displayed. When the unit is not required to run for long time, this function can not only

provide fresh air but also guarantee the indoor air quality.

3.1.11 Error Display

♦When some error occurs, “ERROR” and error codes will be displayed.

Error Codes Error Description

E6 Communication error

F0 Indoor temperature sensor error

L1 Humidity sensor error

F3 Outdoor temperature error

L0 Damper error

Energy Recovery Ventilation System

3.1.12 Intelligent Start/Stop

◆It is also called the central control for dampers, which are used for multiple rooms but are

under the control the one unit. It can totally control eight dampers. A patching board is

required.

3.1.13 Address Setting

Figure 9

◆When the unit is off, by pressing the “Mode” and “▲” keys at the same time for ve seconds,

it is able to set the address of the control (1~16). At this point, address can be increased

or decreased by pressing the “▲” or “▼” key. This address intends to distinguish different

dampers. The default address is 16. By pressing the “On/Off” key, this setting will exit. When

there is no any key operation in 20 seconds, this setting ends and becomes valid.

4. Outline Dimensions

Fresh air outlet

Polluted air inlet

Polluted air outlet

Figure 10 Outline Dimensions\

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