Spirax Sarco RediHeat RH-120 User Manual

1
RediHeat
INSTALLATION AND MAINTENANCE INSTRUCTIONS
IM-12-002-US March 2018
Table Of Contents Page
I. Installation 4
2. RediHeat Start-Up Procedure 4
2.1 Initial start-up 4
2.2 RH-30/60 temperature stabilization adjustment table 5
2.3 RH-90/120 temperature stabilization adjustment table 6
2.4 Rediheat with recirculation system start-up 7
3. Maintenance 7
3.1 Blending valve disassembly 7
3.2 Blending valve re-assembly 7
3.3 Heat exchanger inspection disassembly 8
3.4 Heat exchanger re-assembly 8
4. Troubleshooting 9
5. Recirculation Systems 10
6. Ordering Spare Parts 11

Spirax Sarco RediHeat RH-120 Specifications

General

Model	RH-120
Category	Water Heater
Heating Capacity	120 kW
Maximum Operating Pressure	10 bar
Material	Stainless Steel
Steam Connection	1/2" BSP
Water Connection	1/2" BSP

Summary

Safety Information and Precautions

System Safety & Pressure Handling

Focuses on safe pressure system operation, isolation, and venting.

Installation Guide

RediHeat Start-Up and Adjustment

Initial Start-up Procedure

Steps for initial start-up, checking tightness and setting temperature.

Temperature Stabilization Adjustment

Details calibration of outlet temperature using the control rod.

Recirculation System Start-up

Procedure for starting up with a forced recirculation system.

Maintenance Procedures

Blending Valve Disassembly

Step-by-step guide for disassembling the blending valve.

Blending Valve Re-assembly

Procedure for re-assembling the blending valve correctly.

Heat Exchanger Inspection Disassembly

Steps for inspecting and disassembling the heat exchanger coil.

Heat Exchanger Re-assembly

Troubleshooting Guide

General Troubleshooting Approach

Water Temperature Issues

Addresses problems with water temperature being too high or too low.

Heat Exchanger Problems

Blending Valve Problems

Restricted Water Flow

Recirculation System Configurations