Page 1: Table Of Contents
UKUNDA Heat Recovery unit Installation-Operation-Maintenance High efficiency heat recovery ventilation units Installation-Operation-Maintenance Manual Contents 1.0 INTRODUCTION 1.1 PRODUCT DESCRIPTION 2.0 MAIN LAYOUTS 3.0 MAIN COMPONENTS 3.1 SAFETY 4.0 INSTALLATION 5 DIMENSIONS AND WEIGHT 6 ELECTRICAL INSTALLATION 7 UNIT OPERATION 8 AVAILABLE ACCESSORIES & CONTROLS...
Page 2: Introduction
UKUNDA Heat Recovery unit Installation-Operation-Maintenance High efficiency heat recovery ventilation units Installation-Operation-Maintenance Manual 1.0 INTRODUCTION This manual is part of the product and must be deliv- legislation and codes of practice. ered with the ventilation unit. If these guidelines are not followed, the unit may experi- ence a shortened life or may present a risk of unsafety.
Page 3: Main Layouts
UKUNDA Heat Recovery unit Installation-Operation-Maintenance 2.0 MAIN LAYOUTS HOC horizontal side connection layout BACK supply fresh return exhaust FRONT SIG AH 18/10/18 reserves the right to change the specifications of the product at any time without prior notice...
Page 4: Main Components
UKUNDA Heat Recovery unit Installation-Operation-Maintenance 2.0 MAIN COMPONENTS ① ⑫ ② ④ ⑥ ⑤ ⑤ ⑨ ⑩ ③ ⑨ ⑦ ⑪ Touch screen control (remotable) High efficiency counterflow heat exchanger Electronic box with connections Air filter Air filter Condensate discharge...
Page 5: Safety
UKUNDA Heat Recovery unit Installation-Operation-Maintenance 3.1 SAFETY is 0-40°C (without ambient frosting). For external Tem- Installation has to be carried on by a qualified technician. perature lower than -10°C preheater is recommended. Unit and accessories must be supplied by a dedicated...
Page 6 UKUNDA Heat Recovery unit Installation-Operation-Maintenance 4.1 UNIT HANDLING AND INSTALLATION The unit is factory delivered on a returnable pallet to as- • The same applies to any protruding Accessories (eg sure an easy and safe transport. Do not disassemble it, equipment roof) follow the instruction step by step.
Page 7 UKUNDA Heat Recovery unit Installation-Operation-Maintenance 4.2.3 BASIC REQUIREMENTS the condensate. Remember the condensate ducting with Ceiling, wall, floor or surface must be hard, flat and level. siphon. Please also check the local atmosphere: the humidity in the room where should no more than 65% rel. Particular- ly, the structure in new attic buildings should be checked prior to installation with the installer.
Page 8: Dimensions And Weight
UKUNDA Heat Recovery unit Installation-Operation-Maintenance 5 DIMENSIONS VIEW FROM TOP PLENUM FOR DUCTED RETURN H- 50 1530 1580 NAME DATE Tutte le pieghe si DRAWN Tech. Dept. 03/23/18 intendono a 90° CHECKED dove non NAME: ENG APPR diversamente SG_TOP_PLENUM specificato...
Page 9: Electrical Installation
UKUNDA Heat Recovery unit Installation-Operation-Maintenance 6 ELECTRICAL INSTALLATION PROCEDURE 6.1 ELECTRIC CONNECTIONS Warning! Always unplug the unit during the installation. The unit must be earthed, a fuse is available , protect each unit by residual-current circuit breaker (RCCB) and thermomagnetic cut-out device.
Page 10 UKUNDA Heat Recovery unit Installation-Operation-Maintenance See power intake table for sizing the power cable. Always protect each unit with proper indipendent main switch and safety protection (in accordance to the local laws). Cable for remote control must be in accordance to the recommendatios you find in the IOM of the remote control.
Page 11 UKUNDA Heat Recovery unit Installation-Operation-Maintenance 6.2 ELECTRICAL BASIC SCHEMA: FAN CONNECTIONS AIR TEMP. SENSORS BYPASS UNIT POWER X3-1 BYPASS X3-2 X3-3 INTERNAL ACCES- SORIES (OPTION) ELECTRIC BOARD Ex. AIR DUCT SENSOR INTERNAL PREHEATER CONTROL BOARD AIR SENSORS OR HEATING/ TOUCH...
Page 12: Unit Operation
UKUNDA Heat Recovery unit Installation-Operation-Maintenance 7.0 UNIT OPERATION SIGNALS On the electric box light are positioned to signal operation mode or communication status between unit and touch screen or unit and accessories. ICON NAME Description (when light is on) FREE CONTACT 1...
Page 13: Available Accessories & Controls
UKUNDA Heat Recovery unit Installation-Operation-Maintenance 8 AVAILABLE ACCESSORIES AND CONTROLS A wide range of accessories is available. Ask for single technical sheet for further details. ACCESSORY CODE Detection and regulation • CO 2 ambient probe (APC) ■ • CO 2 duct probe (DPC) ◆...
Page 14 UKUNDA Heat Recovery unit Installation-Operation-Maintenance 8.1 INTERNAL ACCESSORIES A special execution is with internal heating/cooling accessories possible on request. Hot water coils with electronic controls - heating mode (SIDE MODULE) 2 pipes Size item ref. Supply Capacity P drop Water...
Page 15: Frost Risk
UKUNDA Heat Recovery unit Installation-Operation-Maintenance 9 FROST RISK The condensate drain must be airtight from the unit until To prevent heat exchanger freezing, in winter, the ventila- the siphon so that the condensation water can be freely tion unit has anautomatic flow unbalancing system.
Page 16: Condensate Tray
Eerste Tochtweg 11 2913 LN Nieuwerkerk a/d Ijssel The Netherlands Description of the product : UKUNDA size 40, 70, 120, ventilation unit complete with heat recovery We declare that mentioned product above comply with following EC-directives and EN-standards: 93/37/EC , 2006/42/EC EC...