Air Handing Unit Controller
FRE version for Constant Supply Temperature Control (SPTY 3&4)
RET version for Constant Return Temperature Control (SPTY 0&1, 6&7)
SUP version for Variable Supply Temperature Control (SPTY 2&5)

Feature
Notes (FRE)		 Feature
Notes (RET)		 Feature
Notes (SUP)		 Configuration Tables  
Data Sheet A1 (FRE)
(791kb PDF) s/w version 3d7		 Data Sheet A2 (RET)
(878kb PDF) s/w version 3d7		 Data Sheet A3 (SUP)
(866kb PDF) s/w version 3d7		    
Wiring (FRE) Wiring (RET) Wiring (SUP) History  

History

Latest released version is 4c3 (SH version)
Document last updated 03/11/2003

Software Release Document for: AHU/DIN/.../.../SH

PROM file header: AHUSM

Software Version Release Date Hardware Version Notes
4c3
03/11/03
0004/0001 C
Corrections
-registration of AHU with current address A1 when using an AHU as System Housekeeper
4c2 28/04/2003
0004/0001 C
Corrections
-operation of input mode and trim pot

4c1

config tables

 20/03/03 0004/0001 C

New this issue

-Start up interlock can now be monitored and overriden
-AHU Flow temperaturenow read from own Heat Source
-Universal Manual and Hand operation added
-No Comms Reset routines added
-Add ability to delay Fan Fail alarm
-Return temperature setpoint range increased to 55°C
-supports Status Byte for InSite demand display

Corrections

-Run on timing corrected, used to start timing after all valves shut
-Operation in SPTY 3 with OCDS and external input using INMD now works correctly

 

4b7

config tables

 17/09/01 0004/0001 C increase maximum allowable return setpoint to 45 degC
4b6 03/07/00 0004/0001 C correct operation with alarm mode 2 or 3, STOP alarms operation only in alarm mode 3
4b5 06/12/99 0004/0001 C

correct response to OCDS demand in SPTY 6

correct updating of MZON for InSite
4b4 19/08/99 0004/0001 C

correct reporting of supply setpoint when in local de-hum mode

increase the range of setpoint adjustment from configuration varibles

correct allocation of addresses to 'clone' sub modules
4b3 08/06/99 0004/0001 C

correct registration of HSC, CSC, ALM, SLT registration of subsequent modules could cause re-allocation of addresses

correct operation of 'RETRY' after an AHU fail
4b2 22/04/99

issue notes

0004/0001 C add transfer of Zone Temperature to Return Air temperature when registering a zone in SPTY 2

allow registration of Slave AHU in all modes which control the Supply Air and therefore have a valid supply setpoint SPTY 0-4 inclusive

4b1 16/04/99 0004/0001 C add production test code

add support for Monitor Module as remote sensor processing

4a1

config tables

26/01/99

issue  notes

0004/0001 C add dual domain support

add decoding of De-Hum demand from Humidity controller

engineering tables

3c6 20/10/98 0004/0001 C correct retention of OCDS links when AHU is re-registered
3d5 08/09/98 0004/0001 C correct sending demand signals to heat/cool sources
3d4

config tables

15/07/98

issue notes

0004/0001 C revise registration of Dessicant control modules

add support for OCDS

correct registration of ZSL modules (again?)

add registration of Alarm Monitor modules

revise numbers of modules which can be registered to SM version
3d3 23/06/98 0004/0001 C add support for both 'old format' and 'new format' alarm messages, allows the correct receipt of STOP alarms from pre 3c Boilers and Floor Controllers.

correct the decoding of alarm monitoring requests from Doorway

3d2

code not issued use 3d3

04/06/98 0004/0001 C correct registration of ZSL modules
3d1

code not issued use 3d3

  0004/0001 C development issue, includes code for De Hum

reduce slope of gain change with error size to allow higher small signal gain and better overall stability

issue notes

3c9 23/04/98 0004/0001C correct registration of ZSL controllers
3c8 08/04/98 0004/0001C correct registration of AHC cascade sub modules, error introduced in 3c7 code
3c7 09/02/98 0004/0001C all mods to 3c7 from standard AHU incorporated

SPC added to registration tables

registration code changed to table driven version

control routine tables modified to reduce response for large errors (control_array_2)

3c4 16/01/98 0004/0001C correct operation of mode SPTY 7
3c3 15/01/98 0004/0001C correct range of SPTY, disable set_driver_loops when in manual mode
3c2 22/12/97 0004/0001C correct timing of run on
3c1 16/12/97

issue notes

0004/0001C new supply setpoint operation add remote trim capability add manual facility
3b5 04/11/97 C correct negative TrimSpaceSPincrease valid temperature range for valid PV check 2 to 100
3b4 16/11/97 C correct negative TrimSpaceSP
3b3 18/11/97 C correct error in 'tempered air control' modify default loop constants
3b2 13/11/97 C correct error in 'tempered air control' modify default loop constants
3b1 13/11/97 C first 3b issue of SM version to Uckfield
3ai 24/10/97 C  

 

Latest released version is 4c2 (NH version)
Document last updated 03/11/2003

Software Release Document for: AHU/DIN/.../.../NH

PROM file header: AHU

Software Version Release Date Hardware Version Notes
4c2
28/04/2003
0004/0001 C
Corrections
-operation of input mode and trim pot

4c1

config tables

 20/03/03 0004/0001 C

New this issue

-Start up interlock can now be monitored and overriden
-AHU Flow temperaturenow read from own Heat Source
-Universal Manual and Hand operation added
-No Comms Reset routines added
-Add ability to delay Fan Fail alarm
-Return temperature setpoint range increased to 55°C
-supports Status Byte for InSite demand display

Corrections

-Run on timing corrected, used to start timing after all valves shut
-Operation in SPTY 3 with OCDS and external input using INMD now works correctly

 
4b7 17/09/01 0004/0001C increase maximum allowable return setpoint to 45 degC
4b6 03/07/00 0004/0001 C correct operation with alarm mode 2 or 3, STOP alarms operation only in alarm mode 3
4b5 06/12/99 0004/0001 C

correct response to OCDS demand in SPTY 6

correct updating of MZON for InSite
4b4 19/08/99 0004/0001 C

correct reporting of supply setpoint when in local de-hum mode

increase the range of setpoint adjustment from configuration varibles

correct allocation of addresses to 'clone' sub modules
4b3     not issued
4b2 22/04/99

issue notes

0004/0001 C add transfer of Zone Temperature to Return Air temperature when registering a zone in SPTY 2

allow registration of Slave AHU in all modes which control the Supply Air and therefore have a valid supply setpoint SPTY 0-4 inclusive

4b1 16/04/99 0004/0001 C add production test code

add support for Monitor Module as remote sensor processing

4a2 09/02/99 0004/0001 C correct sending of supply setpoint to AHU slaves

correct operation of valve stroking

4a1

config tables

26/01/99

issue  notes

0004/0001 C add dual domain support

add decoding of De-Hum demand from Humidity controller

3d7 09/12/98 0004/0001 C correct manual setup of drivers using select button
3d6 20/10/98 0004/0001 C correct retention of OCDS links when AHU is re-registered
3d5 08/09/98 0004/0001 C correct sending demand signals to heat/cool sources
3d4

config tables

15/07/98 0004/0001 C revise registration of Dessicant control modules

add support for OCDS

correct registration of ZSL modules (again?)

add registration of Alarm Monitor modules

revise numbers of modules which can be registered to SM version

issue notes

3d3 23/06/98 0004/0001 C add support for both 'old format' and 'new format' alarm messages, allows the correct receipt of STOP alarms from pre 3c Boilers and Floor Controllers.

correct the decoding of alarm monitoring requests from Doorway

3d2 04/06/98 0004/0001 C correct registration of ZSL modules
3d1   0004/0001 C development issue, includes code for De Hum

reduce slope of gain change with error size to allow higher small signal gain and better overall stability

issue notes

3c9 23/04/98 0004/0001 C correct registration of ZSL controllers to AHU
3c8 08/04/98 0004/0001 C correct registration of AHC cascade sub modules, error introduced in 3c7 code
3c7 09/02/98 0004/0001 C add SPC to type for registration change to table based registration routines change to CONTROL_ARRAY_2
3c6 03/02/98 0004/0001 C add FCU to slave types so heat/cool sources are set up in FCU
3c5 27/01/98 0004/0001 C cooling flag not being set correctly in modes sp_type 6&7 in manual cooling starting before heating closed down

frost protection didn't work in all modes

degF mods made to config code

3c4 16/01/98 0004/0001 C correct operation of mode SPTY 7
3c3 15/01/98 0004/0001 C correct range of SPTY
3c2 22/12/97 0004/0001 C correct timing of run on
3c1 16/12/97 0004/0001 C new supply setpoint operation add remote trim capability add manual facility

issue notes

3b5 04/11/97 0004/0001 C increase valid temperature range for valid PV check 2 to 100
3b4 26/11/97 0004/0001 C correct negative TrimSpaceSP
3b3 18/11/97 0004/0001 C reduce supply gain to 20 clear remote_fan_fail etc if no FCO's fitted
3b2 13/11/97 0004/0001 C correct error in 'tempered air control' modify default loop constants
3b1 22/10/97 0004/0001 C revised registration to go with Floor Controller
3ai 15/10/97 0004/0001 C correct operation of 'error led' add retry delay, clears AHU_fail after set delay

3ah

09/10/97 0004/0001 C correct SPTY 2 mode, don't use minimum demand to decide on heating/cooling set 'cooling' flag to get correct Doorway values add support for FCO using ahp_op for confirmation of fan state add support AHU_fail (Fan Fail) cleared with switch3 or override

3ag

09/09/97

0004/0001 C correct install routine, setup nvs every time correct operation with PreHeater controller, re-vamp PreHeater interlocks

3ag

09/09/97

0004/0001 C correct install routine, setup nvs every time correct operation with PreHeater controller, re-vamp PreHeater interlocks

3af

09/09/97

0004/0001 C correct operation of STOP alarm

3ae

09/09/97

0004/0001 C disable setting of warm_up and Cool_down, new boolean variables introduced but not yet being set needs changes to Zone Controller

 

 

smartkontrols Ltd

8 Horsted Square
Bell Lane Business Park
Uckfield East Sussex
TN22 1QG

phone 01825 769812
fax 01825 769813
e-mail sales@smartkontrols.co.uk
http:// www.smartkontrols.co.uk