SPACE-RAY SD-EC Destratification Fan Installation Guide

: June 15, 2024
: SPACE-RAY

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SPACE-RAY SD-EC Desertification Fan Installation Guide

**ASSEMBLE INSTRUCTION

**

The meaning of the symbol on the material, its accessory or packaging indicates that this product shall not be treated as regular waste. Please, dispose of this equipment at your applicable collection point for the recycling of electrical and electronic equipment waste. In the European Union and Other European countries which there are separate collection systems for used electrical and electronic product. By ensuring the correct disposal of this product, you will help prevent potentially hazardous to the environment and to human health, which could otherwise be caused by unsuitable waste handling of this product. The recycling of materials will help conserve natural resources. Please do not therefore dispose of your old electrical and electronic equipment with your regular waste.

General
This user’s guide is meant for the installer and if necessary for the user. It’s a reference to operation and installation of the SD-EC destratification fan. For the sake of safety and to guarantee proper function, it is vital that you read this manual thoroughly before starting the installation, including all tips and warnings.

Keep this manual with the appliance and see to it that it is included when the appliance is moved or sold, to ensure that during its life, all persons have been informed about the use and safety aspects of the device.

Description
The SD-EC destratification fan consists of a metal casing
with a bladed fan & motor fitted within a fan guard. There
is an outlet grille with adjustable louvers on the opposite side, which enables the airflow to be directed in the
desired direction. A fitted thermostat allows automatic
operation.

Function
The SD-EC destratification fan is designed to be fitted within the roof space of a building to recirculate e solution to achieving this is by fitting destratification fans. These fans recirculate the, otherwise wasted, warm air gathering within the roof space, to low level. The fitted thermostat (SD models) automates this process.

i.e If the room thermostat is set at 25°C, it will switch the fan on as soon as this temperature is achieved at ceiling/ roof level. The fan will stop when the thermostat detects a reduction in temperature of approx 1.5°C.

The fan speed can be controlled by:

0-10V regulator GA3955
External power source (0-10V d.c.)

The installation of a correctly sized destratification system, pays for itself quickly due to the significant energy savings achieved

Warnings
This appliance may only be installed and maintaind by a qualified and competent person.

The minimum suspension height is 2.7meters. That is because of safety reasons on touching rotating parts.
Disconnect the appliance from the power supply before performing maintenance on this appliance.
Caution, this appliance can start automatically!
Take care of a safe area when working on this appliance
Use certified access equipment.
Take care of your personal safety. Use safety gloves and safety shoes.
This fan can be used by children aged 8 years and above and by persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge, if they are supervised or instructed concerning use of the appliance in a safe way and understand the hazards involved.
Children may not play with the fan
Children may not clean and maintain this fan without supervision.

Warranty
Operation/installation of appliances not in accordance with this manual will render warranty void. It is not permitted to change the specifications or to make modifications of any kind, to this appliance.

Technical Data
Table with technical data

Technical Data

Models| SD3-EC| SD5-EC| SD7-EC| SD10-EC
Air volume                                        m 3/h| 3,300| 5,700| 7,000| 10,000
Fan diameter                                      mm| 350| 450| 500| 630
Fan to ceiling distance                          m| 0.35| 0.45| 0.50| 0.65
Vertical throw                                       m| 5 to 9| 7 to 11| 8 to 12| 12 to 15
Electrical supply **V| 230V 1 Phase N & E – 50Hz
Power consumption (maxximum)       W| 136| 490| 685| 550
Electrical current                                    A| 1.45| 1.3| 4.4| 4.3
Fan speed (maximum)                     RPM| 1530| 1300| 1500| 1050
Noise level @ 6m                            dB(A)| 33 to 55| 33 to 61| 33 to 59| 37 to 61
Weight                                                   kg**| 11| 18| 18| 43

**Dimensional data

**

Dimensional Data

Models| SD3-EC| SD5-EC| SD7-EC| SD10-EC
A – Width| 470| 600| 600| 800
B – Depth| 470| 600| 600| 800
C – Height| 289| 319| 328| 438
D – Suspension point centres| 340| 375| 375| 740

Installation
Suspension

The products used for suspension should be fit for purpose.
The minimum suspension height is 2.7m. .
Install the appliance with 2 persons, keep in mind, working on height and the weight of the appliance.
Take care of a safe area when working on this appliance
Use certified access equipment.
Take care of your personal safety. Use safety gloves and safety shoes.

The unit has been applied with 4 suspension eyes for use with chains or steel wire (not included). Ensure the appliance has an uninterrupted supply of air on both inlet & outlet, a minimum clearance around the air inlet of 0.5m should be observed. For exact distance for each specific unit consult the technical data.

Calculating number of fans required

A rule of thumb, choose one fan per 300m2 floor surface. A more accurate method is on basis of circulation shortage.

This is easy to calculate: Calculate the volume of the space in m3 , multiply this by 2. The resulting figure is the volume in m3 /h needed by the SD-EC destratification fans.

Select the SD-EC model based upon air output, throw of the unit and height of the room. Then simply take the calulated air volume and divide by the air volume produced by your selected SD-EC model. The resulting figure is the qty needed for your application.

NOTE Selecting an SD-EC model with the highest air vol- ume is not nessecarily the best solution. It is important to achieve uniform air distribution throughout the space, for maximum comfort and reduced running costs.

Occasionally it will be nessecary to install more SD-EC fans that calculations indicate to achieve uniform air dis- tribution. In these scenarios, where possible, reduce the model size and increase the quantity.

IMPORTANT Always ensure the model of fan is capable of being installed at the height you propose. Positioning
Position the destratification fan preferably towards the end of the throw or area that is not directly served by the heaters throw.

In general, a higher number of fans provides better air dis- tribution.

We suggest that one fan is used per 150 to 300m² square of floor surface, taking into account mounting height and model

Each SD-EC fan should be fitted approx. 1.0m beneath the roof or ceiling, but not closer than 0.35m. The distance between floor and fan may not exceed the length of the fan’s throw as this will prevent the warm air from reaching the low level. Ensure that the fan is not mounted lower than the minimum throw to avoid drafts and floor dust from being disturbed.

Even with the louvres set at maximum deflection, there will be a severe draft when the unit is suspended too low

Do not place the SD-EC fans above plant machinery or high obstacles.

**Location examples:

**

Electrical connections

Electrical connections
WARNING! Before starting installation ensure that the electrical circuit you are working on has been shut off.

The appliance must be earthed! 230Vac supply connection (EC motor) Power supply to this appliance must be made by wiring into the terminals within the fan motor. See diagrams in chapter 6.\

The installation must comply with all applicable local and/ or national standards i.e. NEN 1010.

There should be a suitable electrical circuit with a main fuse. There is an electrical diagram further on in this guide.

The power supply is 230Vac (50 Hz) with earth.

The fan must to be equipped with a 230Volt isolation switch or power plug. This switch should disconnect phase and neutral (not earth) and have a 3mm contact opening at least. Switches or power plugs must be accessible at all times.

EC motor connection options
The SD-EC is equipped with an on/off thermostat. This thermostat is connected with the 0-10V control of the motor. The thermostat measures the temperature near the fan and switches on the motor when the set temperature has been reached. For correct setting of temperatures, see paragraph 5.1

Besides setting the temperature, the fan speed has to be set. This van be done in the following ways:

Maximum speed only
Speed regulator
External via 0-10V d.c.

Maximum speed only:
The maximum speed can be set by installing a wire between the contacts [T2] (Out) and [S3] (In) on the 6-pole connector. The fan will always run at the maximum speed. See chapter 6, diagram 3.

Speed regulator (potentiometer)
On contacts [T1], [T2] and [S3] of the 6-pole connector, the optional speed regulator GA3955, or a 3 wire potentiometer can be used. Please make sure that the resistance of the potentiometer has a value of 10kΩ. See chapter 6, diagram 4.

External via 0-10V d.c.
On contacts [T1] and [S3] of the 6-pole connector an external voltage can be connected to control the speed. See chapter 6, diagram 5.

ATTENTION! The SD-EC needs 2 signals in order to run. The thermostat contact on the WCU has to be closed and the speed setting has to be made. If one of these signals is missing, the motor will not run.

Setting, operation and maintenance
WARNING! Before starting maintenance make sure that the electrical circuit you are working on has been isolat- ed.

The appliance must be earthed.

Setting the thermostat
Set the thermostat of the SD unit approx. 4 to 7°C above the ambient temperature desired at 1.5m above floor level. The smaller the difference between the room thermostat setting and that of the SD destratification fan, the longer the unit will be operative.

Operation
The SD does not need manual control, it is automatic. Generally temperature setting has to be done by the installer. The user is allowed to do following settings:

Set the temperature at which the fan should ventilate.
Turn ON/OFF main switch
Change fan speed by adjusting the speed regulator

Attention: Do not set the louvres at an angle greater than 20°. This will reduce the air volume and in turn the throw.

Maintenance
In areas where heavy dust is present, it may be necessary to clean the fan & guard with compressed air once a year. If the guard is covered with severe dust, the fan will not provide optimal performance.

Check if the appliance turns ON and OFF as it should on the thermostat.
Pay attention on:

The ON and OFF switching from the thermostat
The smooth rotation of the fan
Remove the dust from the appliance
Check that the fan does not have severe vibration because of unbalance on the fan blades

Wiring Diagrams
Diagram 1 – SD-EC without internal connections on the motor (model SD-EC 3)

Diagram 2 – SD-EC with internal connections on the motor (models SD-EC 5, 7 & 10)

Diagram 3 – SD-EC Connection with fixed maximum speed
Wire the 230V supply into the 6-pole connector, Connect a wire link between terminal T2 & S3 as shown below.

Diagram 4 – SD-EC Connection with fixed variable speed
Control setting via speed regulator GA3955, connect the 230V supply in the 6-pole connector. Connect the speed regulator as shown in the diagram below:

Diagram 5 – SD-EC Connection with variable speed via external power source

Diagram 6 – SD-EC Multiple units controlled by a single speed controller
If more than one SD-EC needs to be connected to one speed controller, please make sure that the 10V supply of the different units are NOT connected to each other. All SD-EC’s must get their 0-10V supply (10V out, T2) from one SD-EC. See SD-EC 1, on the diagram below

CE Declaration
CE declaration
We hereby declare that our products satisfy the applicable European directives, decisions and regulations, as well as the requirements stated in the referenced standards.

Tel: +44(0)1473 830 551
Fax: +44(0)1473 832055

www.spaceray.co.uk info@spaceray.co.uk

Gas Fired Products (UK) Ltd
Chapel Lane
Claydon
Ipswich
Suffolk, IP6 0JL