REZNOR DS-4 Destratification Fan Installation Guide

REZNOR DS-4 Destratification Fan Installation Guide

Introduction

These appliances meet the following UK directives

Electromagnetic Compatibility Regulations 2016
Electrical Equipment (Safety) Regulations 2016
Supply of Machinery (Safety) Regulations 2008
Supply of Machinery (Safety) Regulations (A) 2011

DIR 2014/30/EU:EMC
DIR 2014/35/EU:LVD
DIR 2006/42/EC:MD

Please read this document carefully before commencing installation, commissioning and/or servicing.
Leave it with the end user/site agent to be placed in their premises technical file after installation.

WARNING:
Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death.
All work must be carried out by appropriately qualified persons.
The manufacturer does not take any responsibility in the event of non- observance of the regulations concerning the connection of the apparatus causing a dangerous operation possibly resulting in damage to the apparatus and/or environment in which the unit is installed.

General information

• Reznor de-stratification fans are a self contained unit incorporating an adjustable four way louvre discharge, a high efficiency axial fan and an integral pre-wired thermostat mounted on the side of the unit.
• Care should be taken to ensure that the unit is not sited in areas where it would be undesirable to recirculate high level air because of fumes, etc., or where corrosive atmospheres may attack the fan unit.
• To obtain maximum benefit, de-stratification fans should be sited in the higher part of the building, close to the apex, approximately one meter below the peak.
• Fans located over heat generating machinery or lighting maximize the benefits of ‘free heat’ whilst fans positioned close to doorways help to quickly restore comfortable conditions after door operation.
• Fans should not be sited adjacent to large expanses of wall or roof glazing, or enclose proximity to open flued heater units, as the airflow could adversely affect flue performance.
• The de-stratification fan is equipped with four eyebolt suspension points, one on each corner, and may be suspended from these using chains or wires.
• Each de-stratification fan is equipped with a cable gland mains input positioned on the terminal box on top of the main fan.
• Each unit will require a 230V 50Hz 1ph fused supply to operate.
• For safety and maintenance purposes, each fan should be fitted with an isolator located adjacent to the unit.
• The information contained in this technical manual is designed to aid a qualified or competent service technician in the instruction it is intended for.
• Any reference made to Laws, Standards, Directives, Codes of Practice or other recommendations governing the application and installation of heating appliances and which may be referred to in Brochures, Specifications, Quotations, and Installation, Operation and Maintenance manuals is done so for information and guidance purposes only and should only be considered valid at the time of the publication.
• The Manufacturer cannot be held responsible from any matters arising from the revision to or introduction of new Laws, Standards, Directives, Codes of Practice or other recommendations.

Tools required

The following tools and equipment will be required to complete this task:

1. Lengths of chain or suspension wire, accessories, and relevant tools.
2. Length of 3 core 1.0mm² cable.
3. Wire strippers/cutters.
4. Electrical screwdriver.
5. Multi-meter.

Caution heavy item

The de-stratification fan is equipped with four suspension points, one on each corner.
These take the form of an eyebolt. Using either chain or wire rope, connect each point to a rigid construction i.e. Unistrut, girders etc.
Note: Ensure the framework is adequate to take the weight of the particular destratification unit.

Once the de-stratification fan is in position, the wiring can commence.
The de-stratification fan is dispatched in a cardboard box.

• Remove component from box.

• Adjust all outlet louvres to achieve desired air distribution and ensure blades are not resonating.

• Turn the power/spur on. The destratification fan will now operate and automatically switch off when the set temperature has been reached.

• To check operation of the DS type unit, rotate room thermostat dial to minimum setting – fan should operate.
  Rotate room thermostat dial to maximum setting – the fan should turn off.

• Finally turn the room thermostat to approximately 2° to 3° above the desired room temperature.
  If the fan does not operate in this order, check wiring details in figure 4.

The unit is now ready for operation.
The information contained in this technical manual is designed to aid a qualified or competent service technician.

Figure 1 Thermostat

Parts List

Table 1 Parts list

Technical information

| DS3-4| DS4-4| DS6-4| DS10-4
---|---|---|---|---
Mounting Height| m| 4 – 8| 6 – 12| 10 – 18| 10 – 18
Approx. Mounting Centers| m| 13 – 16| 15 – 20| 16 – 21| 17 – 23
Air Volume| m³/h| 3000| 5300| 6600| 9000
c.f.m| 1765| 3199| 3885| 5297
Maximum Throw| m| 8| 12| 18| 18
Velocity| m/s| 3.77| 4.72| 6.53| 5.73
Electrical Supply| | 230V 50Hz 1Phase
Motor Size| W| 108| 250| 380| 520
Operating Current| A| 0.52| 1.15| 1.75| 2.40
Starting Current| A| 1.5| 2.4| 6.0| 6.7
Fuse Rating| A| 6| 6| 6| 10
Thermostatic Control| | Included
Net Weight| kg| 15| 19| 21| 27
Sound Pressure Level| Lp db (A)| 44| 54| 57| 59

Table 2 Technical information

Notes: Mounting centers based on mounting height. (i.e. the lower the unit, the further they are apart.) Sound level r=5m,Q=1,A=160m²

Dimensions

Figure 2 dimensions and weights

Table 3 dimensions and weights

| Air Velocity (m/s)
---|---
DS3-4| DS4-4| DS6-4| DS10-4
Ambient temperature| 21.0
Mounting Height (m)| 4-8| 6-12| 10-18| 10-18
Velocity at 4.0m from fan| 2.9| N/A| N/A| N/A
Velocity at 4.5m from fan| 2.6| N/A| N/A| N/A
Velocity at 5.0m from fan| 2.4| N/A| N/A| N/A
Velocity at 5.5m from fan| 2.2| N/A| N/A| N/A
Velocity at 6.0m from fan| 2.0| 3.1| N/A| N/A
Velocity at 6.5m from fan| 1.8| 2.9| N/A| N/A
Velocity at 7.0m from fan| 1.7| 2.7| N/A| N/A
Velocity at 7.5m from fan| 1.5| 2.5| N/A| N/A
Velocity at 8.0m from fan| 1.4| 2.4| N/A| N/A
Velocity at 8.5m from fan| N/A| 2.3| N/A| N/A
Velocity at 9.0m from fan| N/A| 2.2| N/A| N/A
Velocity at 9.5m from fan| N/A| 2.0| N/A| N/A
Velocity at 10.0m from fan| N/A| 1.9| 3.3| 3.9
Velocity at 10.5m from fan| N/A| 1.8| 3.2| 3.8
Velocity at 11.0m from fan| N/A| 1.7| 3.1| 3.7
Velocity at 11.5m from fan| N/A| 1.6| 3.1| 3.5
Velocity at 12.0m from fan| N/A| 1.5| 3.0| 3.3
Velocity at 12.5m from fan| N/A| N/A| 2.8| 3.1
Velocity at 13.0m from fan| N/A| N/A| 2.6| 2.9
Velocity at 13.5m from fan| N/A| N/A| 2.5| 2.8
Velocity at 14.0m from fan| N/A| N/A| 2.3| 2.6
Velocity at 14.5m from fan| N/A| N/A| 2.2| 2.4
Velocity at 15.0m from fan| N/A| N/A| 2.1| 2.3
Velocity at 15.5m from fan| N/A| N/A| 2.0| 2.2
Velocity at 16.0m from fan| N/A| N/A| 1.9| 2.0
Velocity at 16.5m from fan| N/A| N/A| 1.6| 1.9
Velocity at 17.0m from fan| N/A| N/A| 1.4| 1.8
Velocity at 17.5m from fan| N/A| N/A| 1.2| 1.5
Velocity at 18.0m from fan| N/A| N/A| 0.9| 1.2

Table 4 Air velocity between maximum and minimum mounting heights

Wiring diagram

Figure 3 Internal wiring diagram.

Figure 4 Power supply connection diagram.

CUSTOMER SUPPORT

NORTEK GLOBAL HVAC (UK) LTD
Fens Pool Avenue
Brierley Hill
West Midlands DY5 1QA
United Kingdom
Tel +44 (0)1384 489700
Fax +44 (0)1384 489707
reznorsales@nortek.com
www.reznor.eu

Nortek Global HVAC is a registered trademark of Nortek Global HVAC limited. Because of the continuous product innovation, Nortek Global HVAC reserves the right to change product specification without due notice

Documents / Resources

| REZNOR DS-4 Destratification Fan [pdf] Installation Guide
DS-4 Destratification Fan, DS-4, Destratification Fan, Fan
---|---

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>