Table of Contents
Summary of Contents for Hamworthy MARSHALL HE
- Page 1 MARSHALL HE BOILER SEQUENCE CONTROL PANEL INSTALLATION, COMMISSIONING AND MAINTENANCE INSTRUCTIONS IMPORTANT NOTE THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING, COMMISSIONING, OPERATING OR SERVICING EQUIPMENT...
- Page 2 01202 662555 Hamworthy offer a service of site assembly for many of our products in instances where plant room area is restricted. Using our trained staff we offer a higher quality of build and assurance of a boiler built and tested by the manufacturer.
- Page 3 NOTE: THESE INSTRUCTIONS SHOULD BE READ AND UNDERSTOOD BEFORE ATTEMPTING TO INSTALL, COMMISSION OR OPERATE THE MARSHALL HE SYSTEM. THE MARSHALL HE SYSTEM IS INTENDED FOR USE ONLY IN COMMERCIAL/LIGHT INDUSTRIAL APPLICATIONS. THIS BOILER SEQUENCE CONTROL SYSTEM COMPLIES WITH THE ESSENTIAL REQUIRE-...
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Page 4: Table Of Contents
INSTALLATION Controller Location Electrical Connections Control Inputs Connections Temperature Sensors Completion COMMISSIONING Pre-Commissioning Checks Programming Marshall HE Operation Checks FAULT FINDING SERVICING FIGURES PAGE Technical Data Table Boiler Firing Sequence Overall Dimensions Marshall HE System Schematic Site Wiring Connection Details... -
Page 5: Introduction
Building Regulations as well as any local maintaining the desired comfort level. If this function regulations which apply. HSE requirements must is not utilised, the Marshall HE will control to a fixed also be taken into account when installing any water flow temperature. equipment. -
Page 6: Technical Data
1.3.11 Remote Holiday Override Facility - A remote pressurisation unit safety circuit, etc, to the Marshall switch can also be connected to the Marshall HE HE System. If the circuit is broken by any of the which when closed will put the control into a holiday safety devices the Marshall HE controller prevents shutdown mode. -
Page 7: Optimiser Function Operation
‘flow For the remainder of the Active period the temperature slope’ and ‘flow temperature offset’ Marshall HE system operates to maintain the room settings (see Section 5.2.3 steps 37 to 40). Figure 11/ temperature at the Active temperature setting. -
Page 8: Summer Shutdown Function Operation
4.2 Electrical Connections All wiring to the Marshall HE controller must be in 3.6 Frost Protection Function Operation accordance with the IEE Regulations, and any local If the outside air temperature falls below the ‘two regulations which apply. -
Page 9: Control Inputs Connections
Insert the sensor probe into the pocket and fix in The remote override feature is not available when place with the locking screw on the side of the an external timeclock is connected to the Marshall HE pocket. system. An optional ‘strap on’ type sensor is available as This switch is connected across terminals ‘+’... -
Page 10: Completion
5.0 COMMISSIONING 5.1.7 When the boilers have been commissioned return the Marshall HE controller to run mode by 5.1 Pre-Commissioning Checks pressing the ‘PROG’ key, the legend ‘A SECURITY CODE IS REQUIRED TO PROGRAM THIS UNIT. 5.1.1 Carry out the electrical and gas installation and Please enter the code :’... -
Page 11: Programming
3) To enter the code press the ENTER key. If the code entered is incorrect an error message is displayed and the unit will return to Run mode. -- THE CODE ENTERED -- ------- WAS INCORRECT ------- 1) SETUP 2) CODE Press <1-2> for required option. HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... - Page 12 Enter calibration setting Number 8 <06> THE SENSOR IS NOW READING 7) Press the ENTER key to enter the new setting and display the ‘maximum override’ setting screen. Enter the MAXIMUM OVERRIDE you want from the override button.(00=disabled):00 HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE...
- Page 13 13) Press the ENTER key to enter the new setting and display the `internal/external clock' setting screen. Enter the Boiler clock source <00>Internal <01>External 14) Use the numerical keypad to select `00' for the Marshall HE internal timeclock, or `01' if an external timeclock is to be used. Enter the Boiler clock source <00>Internal <01>External...
- Page 14 Note! The Marshall HE controller will only permit entry of a combination of the ‘number of boilers’ and ‘number of Enter the number of HIGH/LOW BOILERS on the system ( 0 - 3 ) 19) Press the ENTER key to enter the new setting.
- Page 15 22) Use the numerical keypad to select ‘00' to enable both internally generated holiday periods (programmed in User’s setup, refer to section 3.5 of the Marshall HE User’s Operating Instructions, H.H.L. Pt. No. 50001066) and externally generated holiday periods (via the ‘inputs’ terminals, refer to section 4.3.5), ’01' to enable internal only, ‘02' to enable external only, or ‘03' to disable both internal and external.
- Page 16 (see Section 3.3:Optimiser Function Operation). The higher the setting the earlier the heating will start. If the self learning option is utilised a setting of `20' is recommended as the Marshall HE will `learn' the optimum value. The maximum setting is 46 minutes/°C.
- Page 17 41) Press the ENTER key to enter the new setting and display the `minimum flow temperature' setting screen. Note! If fixed flow temperature control is selected in step 20) This screen is not displayed. See step 45). Enter the MINIMUM FLOW temperature for the boiler HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE...
- Page 18 An initial setting of `16' (4 minutes) is recommended. Note! The setting can be readjusted at a later time when the response of the system has been observed. Enter the BOILER ON TIME DELAY required for the boiler sequencer HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE...
- Page 19 2) Enter the new user code, using the numerical keypad. The code entered is not displayed - an asterisk is used to represent each of the four digits as it is entered. The old ‘USER’ security code was :0000 PLEASE ENTER A NEW CODE (4 digits):**** HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE...
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Page 20: Marshall He Operation Checks
Press <1-2> for required option. 5.2.5 End Programming Press the RUN key from the Engineer’s Setup Menu screen to return to Run mode, the Marshall HE unit will imple- ment the setting changes and commence normal operation. 1 HEATING SYSTEM... -
Page 21: Overall Dimensions
Figure 2—Overall Dimensions HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 22: Marshall He System Schematic
Figure 4 - Marshall HE System Schematic HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 23: Site Wiring Connection Details
Figure 5 - Site Wiring Connection Details HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 24: Example Boiler Connection Schemes
Figure 6 - Example Boiler Connection Schemes HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 25: Insertion Flow Sensor
INSTALLATION INTO WATER FLOW HEADER (ALTERNATIVE METHOD) ½” BSP TAPPING OUTLET OF FLOW HEADER END OF PROBE PROBE CENTRE AXIS ON PIPE ALIGNED WITH PIPE CENTRE LINE CENTRE LINE OUTLET OF FLOW HEADER FLOW HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 26: Strap-On Flow Sensor
ENSURE A FIRM AND CLEAN CONTACT BETWEEN THE SENSOR AND THE SURFACE OF THE FLOW HEADER. NOTE: MEASURE REQUIRED UNSTRETCHED STRAP LENGTH, THEN OUTLET OF REDUCE BY 20mm TO PRODUCE A FLOW HEADER TIGHT FIT TO THE PIPE. HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 27: External Sensor
Figure 9 - External Sensor HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 28: Room Sensor
Figure 10 - Room Sensor 61 CTRS NOTE! WHEN MOUNTING DIRECTLY TO A WALL COUNTERSUNK SCREWS MUST BE USED. 2 OFF SLOTTED MOUNTING HOLES Ø4.2 x 10 LONG KNOCKOUT HOLE FOR CABLE ENTRY (COVER REMOVED) HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 29: Marshall Compensation Function Characteristic Graph
(with offset set at 0 and maximum flow temperature set at 95°C) Outside Air Temperature - °C Compensation Slope Offset Setting (with slope set at 3 to 1 and maximum flow temperature set at 95°C) Outside Air Temperature - °C HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 30: Marshall Setting Table
Flow Temperature Slope Setting °C Minimum Flow Temperature °C Maximum Flow Temperature Circulation Pump Overrun Time Boiler On Delay Setting Boiler Off Delay Setting Sequence Setting - Fixed (00) or Weekly Shift (01) CODE User’s Code HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE... -
Page 31: Fault Finding
'FAULT' legend) ‘Active’ room comfort level setting Reset to correct value (refer to sec- overridden to a lower value. tion 2.3 of the Marshall HE User’s Instructions) Timeclock overridden to ‘Standby’. Reset override time (refer to sec- tion 2.4 of the Marshall HE User’s... - Page 32 The room temperature is too high ‘Active’ room comfort level setting Reset to correct value (refer to sec- overridden to a higher value. tion 2.3 of the Marshall HE User’s Instructions) Room temperature sensor fault (if Check the room sensor wiring con-...
- Page 33 NOTES HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE...
- Page 34 NOTES HAMWORTHY HEATING LTD Page 500001065/B MARSHALL HE...
- Page 35 Notes...
- Page 36 Unit 2, Antrim Line Business Park, Sentry Lane, Newtownabbey BT36 8XX tel: 02890 849826 fax: 02890 847443 Website www.hamworthy-heating.com Associate Companies, Offices and Agents throughout the World. Hamworthy reserves the right to make changes and improvements which may necessitate alteration to the specification without prior notice.