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McDonald Engineers POWER flow 2000 Series User Manual

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UNVENTED HOT WATER SYSTEM
McDONALD ENGINEERS
HOT WATER SYSTEMS
FLEMINGTON ROAD, QUEENSWAY INDUSTRIAL ESTATE, GLENROTHES FIFE KY7 5QF
Tel : 01592 611123 Fax : 01592 611166
Email : sales@mcdonald-engineers.com Internet : www.mcdonald-engineers.com
INSTRUCTIONS
PLEASE LEAVE WITH HOUSEHOLDER
IMPORTANT - Failure to install and maintain this system in
accordance with these instructions will invalidate the
manufacturer’s warranty
.
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McDonald Engineers POWER flow 2000 Series Specifications

General IconGeneral
ModelPOWERflow 2000 Series
Fuel TypeElectric
Voltage230V
CategoryWater Heater
TypeUnvented
Power Rating3kW
Protection RatingIPX4

Summary

Unvented Hot Water System Instructions

Important Installation and Warranty Notice

Failure to install and maintain according to instructions invalidates the manufacturer's warranty.

Installation Requirements and Procedures

Competent Installer and Training

Installation must be by a competent operative with recognized training in Unvented Hot Water Systems.

Handling, Storage, and Installation Area

Handle unit with care, store upright, and ensure installation area supports unit weight and pipework.

Incoming Mains and Component Connections

Details on mains pressure, flux, PRV, check valves, and relief valves for proper installation.

Discharge Pipework and Tundish Requirements

Guidelines for Tundish placement, visibility, safety, and discharge pipework sizing and fall.

Immersion Heater and Indirect Unit Installation

Instructions for connecting immersion heaters and wiring indirect units with zone valves and thermostats.

System Commissioning Steps

Pre-Commissioning Checks and System Filling

Steps for filling the cylinder, checking flow, ensuring watertightness, and verifying valve operation.

Final Operation and Safety Checks

Verify thermostat settings, relief valve discharge, and overall system operation for safety.

Annual Maintenance and Problem Solving

Annual Service Checks and Schedule

Procedures for checking relief valves, strainer, and expansion vessel as part of annual service.

Overheated Water Discharge and Safety

Immediate actions and safety precautions for overheated water discharge, including component checks.

Water Discharge and Expansion Vessel Recharging

Diagnosing water discharge issues and procedures for recharging the expansion vessel.

Immersion Heater and General Fault Resolution

Troubleshooting immersion heater failure and other persistent system problems.

Solar Coil Integration

Single and Dual Coil Solar System Wiring

Wiring instructions for single and dual coil solar systems, including zone valve and thermostat connections.

Solar Coil System Maintenance

Maintenance requirements for solar coil systems as per booklet and solar equipment dictates.