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HAMWORTHY HEATING LTD 

 

CHESIL-ELECTRONIC 

 

500001181/K 

6.3  Electrical connection 

 
Wiring diagrams for the units can be found in 
appendix A1. All wiring to the pressurisation unit 
must be in accordance with the IEE regulations, 
and any local regulations which apply.  

Note!

  

If in 

any doubt a qualified electrician should be 
consulted. 
 
6.3.1 Mains Connection 
 

Units are supplied fitted with a 1m flying lead for 
connection to the mains supply. Mains connection 
must be via a fused isolator rated at 13 Amps and 
positioned locally to the unit. 

 
6.4 Electrical Connection To The User 
Terminals (see Fig A1) 
 
Terminals 1 to 3 

 are Low Pressure Alarm volt 

free relay - 1 Normally Open, 2 Common and 3 
Normally Closed. Suitable for up to 230V  0.5A  
connection. 
 

Terminals 4 to 6 

are High Pressure Alarm volt free 

relay - 4 Normally Open, 5 Common, 6 Normally 
Closed. Suitable for up to 230V  0.5A connection. 
 

Terminals 7 to 9

 are General Alarm volt free relay 

- 7 Normally Open, 8 Common 9  Normally Closed. 
Suitable for up to 230V 0.5A connection. 
 

Terminals 10 to 12 

are for mains power coming 

into power electronics - 10 Live (11 Earth) & 12 
Neutral connection. Supply to be 230V single 
phase 50Hz. 
 

6.5 Operation of the Controller 

 
Once wired, cover closed, and cable fitted to 
pressure sensor, the unit is ready for operation. 
When the mains supply is switched on the unit 
becomes operational with factory settings applying. 
 
After a few seconds the unit will become 
operational and will start the pump(s) until pre-set 
pressure has been achieved or until an alarm is 
displayed (other than Low Pressure Alarm). Please 
note, however, there is a fill function in the 
Maintenance menu designed to bring the system 
up to pre-set pressure which will ignore counters 
such as volume of water introduced, pump cycle 
count, hours run meter etc. See Maintenance 
menu for more information. 
Once system is in normal operation mode the word 
‘AUTO’ appears, to indicate that the unit is in 
working mode. The display will always revert to this 
unless it is in alarm condition. 
 

6.6 Trouble Shooting 

 
In the event of the unit not coming on when mains 
is applied, then please return the unit to HHL for 

full investigation. 
Once powered up, the unit will become operational. 
Again, if the unit is not operating as you believe it 
should, then please contact HHL Technical 
Department for further assistance. 
 

6.7 Standard Menu Display 

 
By pressing the up and down keys you can scroll up 
and down the standard menu in the order detailed 
below. All items in menu are view only, except for 
COLDFILLPRES which can be altered by user 
between 0.7 Bar and 3.4 Bar in 0.1 Bar steps. By 
altering the cold fill pressure, cut-in pressure and low 
pressure alarm setting will move by same amount as 
cold fill pressure is moved either up or down, unless 
they hit their minimum. High pressure alarm setting 
will move upwards once cold fill pressure is 0.2 Bar 
below high pressure alarm, but will not move 
downwards if cold fill pressure is brought down. 
 
The structure of the standard menu is as follows and 
can be scrolled through by using the up and down 
keys:- 
 
SYSTEM PRES X.X: This is current pressure reading 

of system in Bar. 

 
COLDFILLPRES X.X: This is the pump cut-out 

pressure. 

 
MAKE-UP V0 XXXX: This is volume of water 

introduced into system in litres since the unit 
was last reset. 

 
MAKE-UP ALARM XX: This is alarm setting of 

volume of water introduced since Make-up V2  
was last reset in 10’s of litres (i.e. 23 would 
mean 230 Litres). 

 
MAKE-UP V2 XXX.X: This is volume of water 

introduced into system in litres since make-up 
V2 was last reset. 

 
PUMP OPS XXXX: This is the total number of pump 

cycles since pump ops was last reset. 

 
PUMP1 HRS XX.XX: This is Pump 1 hours run since 

Pump1 Hrs was last reset. 

 
PUMP2 HRS XX.XX: This is Pump 2 hours run since 

Pump 2 Hrs was last reset. 

 

6.8 Maintenance Menu Display 

 
This is obtained by pressing down the ‘up’ & ‘down’ 
arrows together for 5 seconds. The screen will 
display either USER MENU ON or USER MENU OFF 
depending on the previous menu setting. 
 
Under Maintenance Menu you obtain access to 
normal menu, plus added functions, with the facility to 
make adjustments where appropriate. Structure of 

Содержание 563216020

Страница 1: ...nt For Commercial Light Industrial Central Heating Installations Installation Commissioning and Servicing Instructions IMPORTANT NOTE THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING C...

Страница 2: ......

Страница 3: ...FOR USE ONLY IN COMMERCIAL LIGHT INDUSTRIAL APPLICATIONS THESE PRESSURISATION UNITS COMPLY WITH THE ESSENTIAL REQUIREMENTS OF THE MACHINERY DIRECTIVE 89 392 EEC AMENDED BY 91 368 EEC THE LOW VOLTAGE D...

Страница 4: ...Mechanical Installation 12 7 2 System Flushing 12 7 3 Electrical Installation 12 7 4 System Expansion Vessel 12 7 5 Initial Setting of Unit 13 7 6 Filling the Unit 13 7 7 Pump Spindle Access Hole 14 8...

Страница 5: ...15 Figure 18 Pump Removal 17 Figure 19 Pump Removal 17 Figure 20 Pump Removal 17 Figure 21 Pressure Sensor 18 Figure 22 Location Of Sensor 18 Figure 23 Control Box 18 Figure 24 Controller Terminals 18...

Страница 6: ...th a float valve to be connected to the water mains The pump draws the make up water pressurising the system from this tank In the wall mounted unit the user interface for the controller is accessed t...

Страница 7: ...6 To suit system conditions Maximum water flow temp C 82 Maximum static height m 16 5 Minimum system operating pressure bar 0 7 Maximum system operating pressure bar 7 0 Safety relief valve setting N...

Страница 8: ...d by the vessel When the system cools the pressure drops If there has been some fluid loss the pressurisation provides replacement 1 Diaphragm position at the cold fill charge pressure The vessel is e...

Страница 9: ...ing the system which should be filled with a suitable device such as an RPZ valve 5 0 GENERAL REQUIREMENTS 5 1 Related Documents Pressure Systems and Transportable Gas Containers Regulations 1989 It i...

Страница 10: ...l size is detailed in the contract documents If in any doubt contact Hamworthy Heating Limited for comprehensive system sizing information Hamworthy Heating Ltd supply the Burstock range of suitable e...

Страница 11: ...are shown in fig 9 below 6 1 Location 6 2 Pipework Connections Shown in Figure 10 1 Mains water connection BSP Male The units have a type AF air gap to prevent backflow in accordance with Water Supply...

Страница 12: ...HAMWORTHY HEATING LTD 7 CHESIL ELECTRONIC 500001181 K Figure 10 Pipework Connections Wall Mounted Figure 11 Pipework Connections Floor Standing...

Страница 13: ...revert to this unless it is in alarm condition 6 6 Trouble Shooting In the event of the unit not coming on when mains is applied then please return the unit to HHL for full investigation Once powered...

Страница 14: ...ce pump ops was last reset By pressing the enter button this will be reset to 0000 PUMP1 HRS XX XX This is Pump 1 hours run since pump 1 hrs was last reset By pressing the enter button this will be re...

Страница 15: ...n stop and FILL will flash on the screen To return the unit back to normal operation the enter key needs to be pressed again Once any required modifications have been made under Maintenance Menu it is...

Страница 16: ...hat Pump 2 has not increased the pressure in the system within the allowed time Same remedy as for Pump 1 Timed Out alarm There are volt free relays on the unit to give audible visual or BMS signals t...

Страница 17: ...the expansion vessel charge pressure the lock shield valve between the Chesil unit and the vessel must be closed The drain cock fitted on the base of the expansion vessel must be open to allow any wa...

Страница 18: ...suitable isolation valve 5 Check that the mains lead has been connected to a suitably fused and switched isolator 6 The cold fill pressure on the units are factory set to the levels listed in figure 3...

Страница 19: ...factory set operating parameters can be made following the instructions detailed in the maintenance section 6 8 7 7 Pump Spindle Access hole A 20mm hole has been added to the right hand side panel of...

Страница 20: ...ge Pump cuts in and out rapidly hunting Value of cut in coldfill pressure set incorrectly Non return valve not sealing correctly System Leak Adjust values Clean valve seat or replace valve if necessar...

Страница 21: ...valve to initiate a leak Note Ensure that the drain valve is closed after this operation 9 2 12 Monthly 1 Check the ball float valve diaphragm seat for integrity and replace if necessary Also check t...

Страница 22: ...inside the unit MUST be quoted For service or spares contacts please refer to the inside front cover of this guide 10 2 Pump Removal part n 530905053 530905054 1 Isolate unit from electrical water su...

Страница 23: ...he screw at the base of the sheet metal front cover of the unit and lift off the cover from the unit 3 Unscrew the 4 screws shown in figure 23 and remove the lid of the box 4 Disconnect the terminal c...

Страница 24: ...mbling the nuts 6 Reconnect the wires to the correct terminal of the PCB as defined in the wiring schematic of Appendix A1 7 Reassemble the lid of the box and reconnect the power to the unit 10 6 Repl...

Страница 25: ...l supply to the unit 10 8 Replacement Of Low Water Level Switch Part No 531203006 The tank contains a water level switch for general alarm indication 1 Isolate the unit from the mains water electrical...

Страница 26: ...e fig 14 1 Isolate the unit from the water supply 2 Undo 1 2 BSP connection to remove supply pipe 3 Unscrew the lock nut from the inlet tube The valve and float are now free to be removed 4 On the sta...

Страница 27: ...it could be subjected to ambient temperatures approaching 0 C At a set temperature determined by the thermostat supplied a small heating element affixed to the baseplate of the unit will be activated...

Страница 28: ...2 Main Wiring Diagram 24 Figure A3 Heating System Calculation Sheet 25 Figure A1 Frost Protection Kit Wiring Diagram CONNECTOR CONNECTOR BLUE BROWN 6 5 4 3 2 1 4 3 2 1 THERMOSTAT GREEN YELLOW BLACK BL...

Страница 29: ...11 12 13 14 15 16 17 PUMP 2 PUMP 1 1 2 Black Black WATER LEVEL SWITCH LOW ALARM NO PU POWERED LOW ALARM NC PU POWERED LOW ALARM COMMON HIGH ALARM NC PU POWERED HIGH ALARM NO PU POWERED HIGH ALARM COMM...

Страница 30: ...Hi pressure alarm level 3 Cold Fill Pressure Switch Setting Calculation Pf Ph Pf 0 2 0 2 Pf bar 10 2 10 2 4 Safety Valve Lift Pressure Calculation Ps Actual fitted expansion vessel volume Vva Vva litr...

Страница 31: ...HAMWORTHY HEATING LTD 26 CHESIL ELECTRONIC 500001181 K NOTES...

Страница 32: ...HAMWORTHY HEATING LTD 27 CHESIL ELECTRONIC 500001181 K INSTALLER SITE ADDRESS USEFUL USER INFORMATION...

Страница 33: ......

Страница 34: ...Road Glasgow Scotland G33 4AG tel 0141 336 8795 fax 0141 771 9635 North East England Service Allison Heating Products 12 Sunnyside Lane Cleadon Village Sunderland SR6 7XB tel 0191 536 8833 fax 0191 53...

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