Dunham-Bush Cougar - User Manual

Cougar Fan Coil Unit
Installation, Operation & Maintenance Instructions
Dunham-Bush Ltd, Downley Road, Havant, Hants PO9 2JD
Document Ref:
Tel: 023 9247 7700
Email: info@dunham-bush.co.uk
127-000-001-B
UK:www.dunham-bush.co.uk
Global:www.dunham-bush.com
June 2018
INTRODUCTION
This booklet provides guidance to identify, handle,
install and commission Dunham-Bush Cougar fan coil
units as well as guidance for operation and
maintenance.
These instructions are to be read in conjunction
with the wiring diagram supplied with the unit.
The instructions apply to units from the standard range
only. Please study the instructions carefully before
commencing any installation work.
IDENTIFICATION
The fan coil unit serial number, description and figure
number (size) are displayed on a label found on the
unit discharge plenum. If specified, a stencil reference
may also be marked on the discharge plenum for on-
site identification.
DESCRIPTION
Dunham-Bush Cougar fan coil unit comprises a self-
finished galvanised sheet steel casing with multiple
access panels to each part of the fan coil unit,
including fans, motors, air filter, dual purpose
heating/cooling coil, electrical connections box and
discharge plenum. Fan coil units are designed for
continuously variable fan speed, with fan speed set by
a 0-10VDC signal.
STANDARD RANGE MODELS & SIZES
Cougar is a horizontal basic chassis fan coil unit,
available in seven sizes, figs 1 to 7 inclusive
Diagram 1 - Cougar Fig 3 LH connections with octagonal discharge plenum
NOTE: PLEASE LEAVE COPIES OF THESE INSTRUCTIONS AND ANY WIRING DIAGRAMS
AND OTHER RELEVENT LITERATURE WITH THE END USER.
Electrical connections
and controls box
Fan speed and on/off switches
Discharge spigot
Drip tray drain
connection
Valves and actuators
(coil connections)
Coil/drip tray access panel
Filter access
panel
Fan/motor access panel
Discharge plenum access panel

Summary

INTRODUCTION

DESCRIPTION

Dunham-Bush Cougar fan coil unit comprises a self-finished galvanised sheet steel casing with multiple access panels.

STANDARD RANGE MODELS & SIZES

Cougar is a horizontal basic chassis fan coil unit, available in seven sizes.

IDENTIFICATION

ACCESSORIES

Standard controls

Units are available with accessories for fitted stand alone or remote control, including setpoint adjusters.

Discharge Configuration

Standard configuration is an octagonal discharge plenum with up to eight spigots, fitted to suit duct connections.

CONSTRUCTION

Delivery

Purchaser is responsible for off-loading; examine unit promptly. Claims for damage must be endorsed at delivery.

Handling and Storage

Handle units with care, do not drop. Store in clean, dry conditions. Keep packaging until needed.

INSTALLATION

General

Check identity before removing packaging. Retain packaging to protect unit from damage.

Fitting

Prepare drop rods, suspend unit level, connect ductwork, pipework, drain, and electrical supply.

Pipework Connections

Connect coil pipework to 40mm centres. Observe flow direction. Use isolating valves and strainers.

Electrical connections and controls

Connect 230V supply to flying lead. Fit remote accessories. Refer to wiring diagram.

COMMISSIONING

Inspection

Ensure unit is clean, filter clean, access panels and ductwork are secure.

Access

Four access panels allow access to filter, drip tray/coil, fans/motors, and discharge plenum.

Cleaning

Check coil connections and drip tray. Purge air from coil. Balance water flow. Test pump operation.

OPERATION

CONTROLS

Units use a waterside control system. User control via 0-10VDC signal or temperature control.

CLEANING

Inspection

Inspect air filter and drip tray after 6-8 weeks. Frequency depends on operating conditions.

Access

Access panels provide entry to filter, drip tray/coil, fans/motors, and discharge plenum.

Cleaning

Clean air filters, drip tray, fans, motors, and coil. Test condensate pump if fitted.

MAINTENANCE

Declaration of Conformity

SPARES;SERVICE

Dunham-Bush Cougar Specifications

General

Brand	Dunham-Bush
Model	Cougar
Category	Fan
Language	English