Hamworthy QAA73.210 Page 4 Installation, Commissioning And Servicing Instructions Download

Page: 4 / 44

HAMWORTHY HEATING LTD

QAA73.210

Programmable Room Unit

500001305/B

CONTENTS

PAGE

1.0 Introduction

……...…………………………………………………………………………………………….……..1

2.0 Handling and Installation

…………………………………………………………………………………………………………………

2.1 Location

2.2 Installation

2.3 Electrical installation

3.0 Commissioning

………………………………………………………………………………………………………………………………...

4.0 Operation

………………………………………………………………………………………………………………………………..……....

4.1 Display

4.2 Programming BMU parameters

4.3 Room unit settings

4.4Time switch program

4.5 Cooling circuit

4.6 Domestic Hot Water

4.7 Configuration

4.8 Functions

5.0 Fault Finding

……………………………...

…………………………………………………………………………………………......

6.0 Technical Data

………………………………………..

………………………………………………………………………….….

7.0 Single Heating Zone Installations

……………….

…………………………………………………………………….……….....

8.0 Single Heating Circuit with Domestic Hot Water

………………………….

………….……………...……………..…..

9.0 Twin Heating Circuits with Domestic Hot Water

……………..

…………………………………………….……….….…..

Appendix A: Sensors

…………………………………………………………………………………………………………………….…….…

Summary of Contents for QAA73.210

Page 1: ...Room Unit For Single Boiler Installations INSTALLATION COMMISSIONING AND SERVICING INSTRUCTIONS IMPORTANT NOTE THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING COMMISSIONING OPERATING...

Page 2: ......

Page 3: ...210 PROGRAMMABLE ROOM UNIT For Single Boiler Applications Installation Commissioning and Operating Instructions i NOTE THESE INSTRUCTIONS SHOULD BE READ AND UNDERSTOOD BEFORE ATTEMPTING TO INSTALL CO...

Page 4: ...sioning 5 4 0 Operation 10 4 1 Display 4 2 Programming BMU parameters 4 3 Room unit settings 4 4Time switch program 4 5 Cooling circuit 4 6 Domestic Hot Water 4 7 Configuration 4 8 Functions 5 0 Fault...

Page 5: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B iii...

Page 6: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B iv...

Page 7: ...dual basis D h w program with up to 4 heating periods per day can be selected on an individual basis Holiday program The heating programs and the d h w program can be reset to their default settings P...

Page 8: ...erature as accurately as possible without being affected by direct solar radiation or other heating or cooling sources Mounting height should be approximately 1 5 meters above the floor The unit can b...

Page 9: ...t the bottom and remove the base from the housing front Pull the interface cable through the opening of the base and connect it to the screw terminals Fit the base to the walls with screws Engage the...

Page 10: ...or the OpenTherm communication interface and the QAA73 room controller is supplied from the boiler LMU64 controller Cables used for installing the OpenTherm communication interface power supply must h...

Page 11: ...cations and details regarding which parameters to change please refer to the relevant section of this manual Buttons Explanation 1 Press the Info button for at least 3 seconds This will take you direc...

Page 12: ...ttons to select the required user level To confirm press OK You are now on the required user level User levels The user levels only allow authorized user groups to make settings To reach the required...

Page 13: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 7 Overview of user Parameters Continued on next page...

Page 14: ...Room Unit 500001305 B 8 Continued from previous page The above table shows all available settings up to the heating engineer level However certain operating lines may be hidden depending on the type...

Page 15: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 9 4 0 Operation 7 2 4 1 5 3 6...

Page 16: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 10 4 1 Display Please see the previous table for the descriptions of the individual display icons...

Page 17: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 11...

Page 18: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 12...

Page 19: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 13...

Page 20: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 4 2 Programming BMU Parameters 14...

Page 21: ...apply This setting must be made before the switching times are entered For every day on which other switching times shall apply the pre selection of the individual day with subsequent entry of the swi...

Page 22: ...re setpoint is active the rooms will be heated according to the adjustment made with the setpoint buttons The adjustment made with the buttons is only active in automatic and continuous operation The...

Page 23: ...es the flow temperature setpoint based on the selected heating curve The result is a constant room temperature irrespective of outside temperature variations By changing the setting the slope of the h...

Page 24: ...the summer winter changeover temperature a fixed switching differ ential is compared with the attenuated outside temperature Note This func tion only acts in automatic mode The 24 hour heating limit...

Page 25: ...C KORR Constant for room influence TRx Actual value of the room temperature TRw Room temperature setpoint TRwk Room temperature setpoint readjusted As the example shows if the room temperature is 2 C...

Page 26: ...must be enabled to act on the relevant heating circuits There may be no thermostatic radiator valves in the reference room If such valves are present they must be set to their fully open position Qui...

Page 27: ...ential will become greater The pumps are switched on and off less often The room temperature varies within a wider band With pump heating circuits the amount of heat supplied is controlled by switchin...

Page 28: ...ature setpoint COMFR During nominal operation the nominal d h w setpoint is maintained It is possible to use 2 different d h w temperature setpoints The temperature setpoint during normal d h w operat...

Page 29: ...e next day when d h w is heated for the first time This function is possible only when d h w heating is released by the d h w heating program Dwelling time at legionella function setpoint L TIME The s...

Page 30: ...om influence AMBON must be activated for the required heating circuits and in addition an outside sensor must be connected Room influence The room influence acts on the room temperature setpoint The d...

Page 31: ...QAA73 210 Programmable Room Unit 500001305 B 4 8 4 Fix flow temperature setpoint The setpoint has to be set manually Note The room influence AMBON must be set to OFF and in addition no outside sensor...

Page 32: ...e been correctly set Check wiring of outside sensor Has the Nominal room temperature setpoint with the Parallel displacement of the heating curve been calibrated based on the effective room temperatur...

Page 33: ...porate a facility for switching duty standby pumps If required this must be facilitated externally to these controls Room programmer The single room programmer QAA73 must be installed in the location...

Page 34: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 26...

Page 35: ...not incorporate a facility for switching duty standby pumps If required this must be facilitated externally to these controls Heating circuit pump The heating pump is designated Q1 This must be connec...

Page 36: ...o any mains cables to prevent electrical interference Note The cable supplied with the sensor may require extending Features available with this system 7 Day time clock with 4 periods each day for hea...

Page 37: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 29...

Page 38: ...for boiler LMU wiring connection zone water temperature sensor QAL36 and immersion pocket part number 563605339 Fitting second heating circuit clip in relay kit AGU2 500A109 The clip in relay is requ...

Page 39: ...e requirements of the second heating circuit Note The control does not incorporate a facility for switching duty standby pumps If required this must be facilitated externally to these controls D H W C...

Page 40: ...ter circuit Auto summer winter time change BST to GMT Holiday program Frost protection for building Frost protection for boiler Frost protection for hot water cylinder Reduced temperature night setbac...

Page 41: ...HAMWORTHY HEATING LTD QAA73 210 Programmable Room Unit 500001305 B 33...

Page 42: ...to illustration below For wall mounting a cable entry gland Pg 11 can be fitted to the bottom of the housing External Sensor QAC34 Type Ref Sensing Element Range C Tolerance K Time Constant min Weight...

Page 43: ......

Page 44: ...blin 12 Ireland tel 00 353 141 91919 fax 00 353 145 84806 email info hevac ie Scotland Sales Service McDowall Modular Services 2 Penson Road Queenslie Industrial Estate Glasgow G33 4AG tel 0141 336 87...

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