Chiller BOX Vari User manual

Installation, Operation, and

Maintenance Manual

GRAND

Vari & Vari Pro

N02119031 Rev. A

Chiller Oy will not assume responsibility for any errors or shortcomings that may appear in this document.

The end user is responsible for ensuring that the unit operates appropriately and safely. Working with

electric components is subject to permission. Always abide by the existing national legislation, regulations

and standards.

Chiller Oy is constantly developing its products and reserves the right to change its products.

GRAND Vari™ is a registered trademark of Chiller Oy.

Chiller Oy

Address: Louhostie 2, FI-04300 Tuusula

Finland

Telephone: +358 9 274 7670

E-mail: info@chiller.fi

Internet: www.chiller.eu

Approvals and version history

REVISION DATE DESCRIPTION

OF CHANGE

APPROVED BY

A 25.05.2020 First issue MH

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

Contents

1 General ............................................................................................................4

1.1 About this manual.....................................................................................4

1.2 Guarantee................................................................................................4

1.3 Inspection of the unit.................................................................................4

1.4 Related documentation .............................................................................5

2 Safety...............................................................................................................6

2.1 General safety instructions ........................................................................6

2.2 Safety-related signs ..................................................................................6

2.3 Safety symbols.........................................................................................6

3 Unit overview ...................................................................................................8

3.1 Introduction of the unit...............................................................................8

3.2 Unit dimensions........................................................................................9

3.3 Type plate ..............................................................................................10

3.4 Automation options and control connections ............................................. 11

3.4.1 Vari-option ................................................................................12

3.4.2 Vari Pro-option ..........................................................................13

4 Installation of the unit.....................................................................................14

4.1 General installation instructions ...............................................................14

4.2 Choosing the installation site ...................................................................14

4.3 Removing the air duct collar ....................................................................16

4.4 Mounting the unit ....................................................................................17

4.5 Attaching the water connections ..............................................................20

4.6 Installing sewerage for condensation water...............................................21

4.6.1 Sewerage without condensation water pump ...............................21

4.6.2 Sewerage with condensation water pump (option) .......................22

4.7 Attaching the electrical connections .........................................................25

4.8 Installing the external drain pan ...............................................................26

4.9 Installing the fresh air connection .............................................................27

4.10 Installing the grille...................................................................................27

4.11 Testing the condensation water pump.......................................................28

5 Operation of the unit ......................................................................................30

5.1 Controlling the unit..................................................................................30

6 Maintenance of the unit..................................................................................31

6.1 Maintenance schedule ............................................................................31

6.2 Cleaning the grille...................................................................................31

6.3 Removing the filter..................................................................................32

6.4 Cleaning and replacing the filter ...............................................................33

6.5 Opening the maintenance hatch ..............................................................34

6.6 Cleaning the condensation water basin ....................................................35

APPENDIX A: Vari-option control connections ...................................................38

APPENDIX B: Register listing for Vari Pro-option ...............................................40

APPENDIX C: Register listing for unit with Vari Pro room controller...................42

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

1 General

1.1 About this manual

This Installation, Operation, and Maintenance Manual has been prepared as

general instructions for appropriate installation, operation, and maintenance

procedures. When operating the unit, always follow the precautionary

instructions related to each component as well as the regulations and

recommendations given by the local authorities.

The unit must be installed, operated, and maintained by a professional and in

such a way that it does not cause danger to humans, the environment, or the

unit itself. The unit must not be used for other than its intended purposes without

a written consent from the manufacturer.

NOTICE

Before you start to install, operate, or maintain the system, read this manual

carefully and familiarize yourself with all of the instructions.

Keep the manual for later reference.

1.2 Guarantee

The guarantee for this unit is based on Chiller Oy’s terms of guarantee.

The guarantee becomes void, if:

•the product is modified or repaired without a written consent from Chiller Oy

•the unit parameters are modified without permission

•the configuration of the unit is changed

•the installation site, unit connections, installation ground, or installation

procedures do not follow these instructions

•the instructions in this Installation, Operation, and Maintenance Manual are

not followed.

The guarantee does not cover damages, if:

•the user does not follow the manufacturer’s instructions

•the unit is used in a way that it is not designed for and that causes damage to

the unit

•the unit is not maintained according to the schedule and instructions in this

manual.

Note! Warranty claims are processed only, if the complete type and serial numbers

of the unit (see Section 3.3 Type plate) are notified to the manufacturer in written

form.

1.3 Inspection of the unit

The units are shipped from the factory as assembled (apart from some

accessories), wired, and tested. In some unit models, part of the grille is shipped

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

in a separate package for mounting onto the lower surface of the lowered ceiling

after installation.

When you receive the unit:

1. Inspect the delivery against the order.

2. Verify that the contents of the delivery meet the order.

3. Inspect all the delivered units carefully.

a. If the units have transport damages, notify the expeditor and the seller of

them.

b. Record the transport damages on the bill of freight.

c. Send a complaint about the damages to the transport company within 24

hours of delivery.

1.4 Related documentation

In addition to this manual, the unit is delivered with a unit-specific wiring

diagram.

In case you need a new wiring diagram, you can order it. You need the unit

serial number from the type plate for the order (see Section 3.3 Type plate).

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

2 Safety

2.1 General safety instructions

This unit is designed so that it does not expose people to hazard or risk,

provided that:

•The unit is installed, operated, and maintained according to the instructions

in this manual.

•No structural changes are made to the unit.

2.2 Safety-related signs

These are the safety-related signs used in this manual.

DANGER

DANGER indicates a hazard with a high level of risk which, if not avoided,

will result in death or serious injury.

WARNING

WARNING indicates a hazard with a medium level of risk which, if not

avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a hazard with a low level of risk which, if not avoided,

could result in minor or moderate injury.

Note! Notes are used to indicate important information and useful tips.

2.3 Safety symbols

Hazard symbols

These symbols indicate a hazardous situation or action. Symbols are used to

warn of situations, which can cause environmental damage and personal injury.

General warning sign

Electrical hazard

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

Prohibited action symbols

These symbols are used in warnings and notifications to indicate an action that

should not be taken. The prohibited action symbols are shown below.

Limited or restricted access

Do not touch

Mandatory action symbols

These symbols are used in warnings and notifications to indicate an action that

must be taken. The mandatory action symbols are shown below.

Read the manual or instructions

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

3 Unit overview

3.1 Introduction of the unit

The Grand fan coil unit is designed for room air conditioning, and it is equipped

with a fresh air connection. The unit is available in two sizes, Grand 70 and

Grand 100. The unit is also available with two automation options, Vari and Vari

Pro.

Figure 1: Overview of the unit

1. Coil and fan (inside unit)

2. Water connections

3. External drain pan

4. Free drain outlet (option, if the unit is without condensate pump)

5. Condensate pump outlet (option)

6. Electrical box

7. Fresh air connection, Ø 125 mm

8. Collar

9. Maintenance hatch

10. Grille

The unit directs air to the room from the upper side of the grille (blue arrow), and

returns the air back to the unit from the bottom side (red arrow). There is a

separator plate inside the unit that separates the air flow.

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

Figure 2: Air flow directions

CAUTION

Do not remove the separator plate at any time. If you remove the plate, the

unit does not function properly and the air does not flow correctly. For more

information, see Section 4.4 Mounting the unit.

3.2 Unit dimensions

The unit comes in two sizes, Grand 70 and Grand 100.

Note! The unit dimensions are given as reference. Chiller Oy reserves the right to

make changes to them. Check the actual dimensions from the order

documentation.

Figure 3: Main dimensions of Grand 70

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

Figure 4: Main dimensions of Grand 100

3.3 Type plate

One type plate is located in the inlet opening and another one is located next to

the electrical box in the rear of the unit. The type plate in the inlet opening is

visible when you remove the intake grille and filter.

Note! Record the type plate information on the unit card and file it carefully. The

type and serial numbers of the unit are required for identifying the unit when, for

instance, purchasing spare parts.

When you order maintenance or order spare parts, you always need the serial

number. You cannot make an order without the serial number.

N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual

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