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Table of Contents
Summary of Contents for Ormandy Group Breeze
- Page 1 Breeze Plate Heat Exchanger Operating & Maintenance Manual...
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Page 2: Specification
VERY IMPORTANT - PLEASE READ CAREFULLY Running Section 1 Safety Points Page 1 Start Up Page 1 Working Principles Page 2 Installing Section 2 Installation Page 3 Operation and Set Up Page 4 Health Section 3 Maintenance Page 12 Service Page 12 Spares Page 12... -
Page 3: Safety Points
• During operation, the unit may have very hot or cold surfaces. • The temperature probe is installed directly in the secondary flow. Do not remove when the system is hot, full of water or under any pressure. • Take care when lifting. Only use the designated lifting point. Use only certified lifting equipment capable of lifting the weight. Residual water may also be present and spillage could occur. • Never lift the Ormandy Rycroft Breeze by any associated pipework or pipe connections. • Take care when handling, as some edges may be sharp. • The equipment has danger from electricity. Do not remove covers or allow any exposed live parts. Isolate before working on the unit. • The electrical and mechanical functionality must be considered prior to connecting any non factory fitted equipment. E.g. pumps, valves,... -
Page 4: Working Principles
Working Principles The Breeze comprises of a Supapac Plate Heat Exchanger, either a 3 port or 4 port control valve, primary pump, temperature sensor and PID controller, all mounted on a skid base. Motorised 3 or 4 port control valves, allow rapid adjustment of the primary heat input to match changes in secondary hot water demand. The Breeze is supplied without insulation and the design ensures that the outlet temperature does not fall below the set point (60°C default) but can be adjusted to suit customer requirements and consequently reduces the risk of legionnaires disease. Providing the class of accommodation and details of the number and type of fixtures are known, Ormandy Rycroft will be pleased to recommend the optimum size of the Breeze. 3 Port Valve 4 Port Valve Control Stat Control Primary Stat Flow Primary Secondary Primary Flow Outlet... -
Page 5: Installation
Flush out the system before installing the Ormandy Rycroft Breeze-Plate to remove any foreign matter. Close any manual air vents and run the Breeze. Crack the vents to release air. Caution: Do not fill the system too quickly, otherwise pockets of air may become trapped. -
Page 6: Operation And Set Up
Operation and Set Up Key to Ormandy Rycroft Breeze controls and indicators. On/Off Switch ✓ ✘ Day/Mode Display Value Increase Push Button System Healthy Indicator Time/Alarm Display Step Right Push Button System Fault Indicator Temperature/Parameter Display Value Decrease Push Button... -
Page 7: Operation
The standard temperature setting is 60°C and the unit will run continuously. (24 hour operation). To change any of the default settings, refer to Figure 3 The Breeze-Plate can be energised by its own internal time clock function, by a remote switch or Building Management System or by a combination of the two. Remote Switch or Building Management System Control The Breeze will be turned on when contacts connected to the Remote Enable terminals closed. This allows the user to control the time of day when hot water will be available. When the contact is open the system is turned off. Internal Time Clock Control For this function to work the Time clock function should be turned on (see Set Up) and the Remote Enable terminals should be linked. - Page 8 Set Up The Breeze control unit is factory programmed with temperature and control settings that will suit most applications. However we would recommend that the unit is commissioned to ensure correct operation and maximum efficiency. Contact our Service Department for details. All the values are adjustable so that you can customise the unit to exactly match your system. The set up routine is entered by pressing and holding the Mode push button for three seconds. (10) Press the Step Right Step left push buttons to move forwards and backwards through the sequence. Press the Value Increase Value Decrease push buttons to alter the value shown in the display. Press and hold the Mode push button for 3 seconds to exit the set up routine.
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Page 9: System Faults
System Faults When a fault situation is detected, the System Fault indicator will be lit and the internal Fault relay (14) will be energised. The normal time and temperature display will be replaced by an alarm message. The messages and meanings are shown in Figure 2 below. If a system fault occurs when the controller is in the set up routine, the System Fault indicator will be lit, but the display will not be replaced by (14) an alarm message. The alarm message can be viewed by leaving the Set Up routine. Figure 2 - Alarm Messages First High temperature level detected. Second High temperature level detected - buzzer sounds and the system is automatically shut down. - Page 10 The set up routine is entered by simultaneously pressing and holding the Mode , Step Left (10) Value Decrease , Push buttons for a minimum of three seconds. Press the Step Right Step Left push buttons to move forwards and backwards through the sequence. Press the Value Increase Value Decrease push buttons to alter the value shown in the display. Press and hold the Mode (10) push button for 3 seconds to exit the set up routine.
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Page 11: Manual Control
Night Set Back / Pasteurisation When the DIP switch (column 5 in the table below) for Night set-back/Pasteurisation is set to the on position and the unit is put into standby via the time-clock. When the pasteurisation value (S SB TO) is set to above the normal set temperature (S SET TO), the controller will assume pasteurisation and will raise the temperature to the pasteurisation value for one hour, before returning to standby, until the next scheduled on period. Alternatively, when the set back value is set to below the normal set value, the controller will assume set back and will lower the temperature to this value until the next scheduled period. Manual Control The Advanced Set Up routine allows the engineer to position the control valve manually. This feature is active while this set up window is visible. This feature is disabled and control restored to automatic by pressing the... - Page 12 Factory Default Settings Set Up: Alternative setting record (Date) ........Set Point = 60 ........Time Clock = Off ........Day (Set) = 1 = Mon 7 = Sunday Clock (Set) = Time Day 1 ON 1 = 0000 .....
- Page 13 Primary Pump Overrun Time = 5 mins ........Primary Pump Overrun Temperature = 400C ........Secondary Pump Overrun Time = 5 mins ........Secondary Pump Overrun Temperature = 400C ........Night Set-back/Pasteurisation Temperature = 680C .....
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Page 14: Maintenance
Health Maintenance Where possible, a detailed inspection of the Breeze should be made after the first six months. This will provide an insight into future requirements for efficient maintenance. If the Breeze is cleaned and there is no sign of corrosion, it can be safely assumed an annual inspection will be sufficient for future servicing. All electrical connections should be checked and tightened if necessary. Caution:- Maintenance should only be performed by qualified personnel only. Electrical work should be carried out by a qualified electrician in strict conformance to the latest requirements. In order to maintain the Breeze unit, you will require as a minimum the following tool kit: • Set of Metric allen Keys up to M16 • Set of Metric spanners • Set of Screwdrivers • A pipe wrench to suit a maximum 50mm nominal pipe size. • M16 friction ratchet and M16 deep ring spanner (CP-B25 to CP-B250) Controller The controller is run via an EPROM that stores all the changes to the time programmes and other data. - Page 15 Information Specification Power Supply Requirements Voltage: 230 Volts, 50Hz. Nominal current: Maximum 16Amps (Pump and Duty dependant). Inputs Temperature probe: Type J thermocouple (Grounded) via a 12 bit A/D converter (minimum 0.1 °C resolution). Display range: 0 - 250°C Volt Free Contacts To enable from remote source (Time-clock, SCADA,BMS, boiler controls etc) For connection of a supplementary high limit contact or thermostat as a second alarm. Primary Pump(s) fault contact/s. Signal Remote set point adjustment. 4-20mA Scaled 20°C - 100°C. Outputs Pump Supply • Two primary pumps (1 Duty, 1 Standby) single phase 230v 5A Maximum. • Two secondary pumps (1 circulation, 1 shunt ) single phase 230v 5A Maximum. Valve actuator supply •...
- Page 16 Duncombe Road, Bradford, England BD8 9TB. Telephone: +44 (0) 1274 490911. Email: sales@ormandygroup.com www.ormandygroup.com...
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