Elson 300zi User Manual

1
Pack Contents
Zircon unvented water heater incorporating immersion heater(s) & thermal controls•
Factoryttedtemperature/pressurereliefvalve(setat90°C/1Mpa(10bar))•
Coldwatercombinationvalveassembly•
Expansionvessel&mountingbracket•
Tundish•
2 Port motorised valve (indirect models only)•
Compressionnuts&olives•
Immersion heater spanner•
Installation & servicing instructions•
Guarantee card•
IMPORTANT
Pleaseread&understandalltheseinstructionsbeforecommencinginstallation.
Pleaseleavethismanualwiththecustomerforfuturereference.
Zircon Installation Manual
Unvented Direct & Indirect Water Heaters
Installation & Servicing Instructions

Elson 300zi Specifications

General

Brand	Elson
Model	300zi
Category	Water Heater
Language	English

Summary

Installation General

Water Supply and Valving

Details pipe fittings, cold feed, and the combination valve assembly for water supply.

Installation Discharge

Discharge Pipework Requirements

Details regulatory requirements for discharge pipework from safety devices.

Tundish and Discharge Piping

Specifies requirements for tundish installation and discharge pipe sizing (D1 & D2).

Discharge Pipe Sizing Example

Provides a worked example for sizing discharge pipes and important warnings.

Installation - Direct

Safety and Electrical Supply (Direct)

Covers safety precautions and electrical supply requirements for direct units.

Plumbing Connections (Direct)

Details the required plumbing connections for direct unvented water heaters.

Installation - Indirect

Safety and Electrical Supply (Indirect)

Covers safety precautions and electrical supply requirements for indirect units.

Plumbing and Boiler Connections (Indirect)

System Controls and Wiring (Indirect)

Commissioning

Filling and System Checks

Commissioning Direct Units

Commissioning Indirect Units

Benchmark Log Book and Re-commissioning

Maintenance

Maintenance Requirements and Safety Valves

Component Maintenance

Unit Specific Maintenance

Expansion Vessel and Re-commissioning

User Instructions

Temperature Controls

Fault Finding & Servicing

Important Servicing Notes

Commissioning Check List

Service Record