AERMEC MULTI CONTROL Installation and operation manual

MULTI CONTROL
ELECTRONIC REGULATION
BOOKLET
GB
4598010_00 / A5 - 1201

Index
Precautions and Safety Standards...............................................................................................5
Type of systems managed by MULTI CONTROL.........................................................................6
Systems without additional VMF CRP modules .................................................................................................... 6
Systems with additional VMF CRP modules ......................................................................................................... 7
VMF CRP 1 connections (3-way valves and probes management) ..................................................................... 8
VMF CRP 2 connections (supplementary resistance management on DHW)...................................................... 9
VMF CRP 3 connections (remote control management) .................................................................................... 10
MULTI CONTROL serial connection ...........................................................................................11
MULTI CONTROL panel user interface.......................................................................................12
Interface control keys.......................................................................................................................................... 12
Structure of MULTI CONTROL menus........................................................................................13
Main MULTI CONTROL display....................................................................................................14
Main MULTI CONTROL screen........................................................................................................................... 14
MONITOR mode screen ..................................................................................................................................... 15
BASIC use procedures.................................................................................................................16
System ON/OFF .................................................................................................................................................. 16
Entering MONITOR mode................................................................................................................................... 16
Entering menu selection ..................................................................................................................................... 16
Browsing and choice of a menu ......................................................................................................................... 16
UNIT SYNOPTIC menu procedures.............................................................................................17
Checking status of chillers present in the system .............................................................................................. 17
Reading of characteristic parameters of chillers................................................................................................ 18
Matching between operating parameters and units........................................................................................... 19
Setting a daily time period .................................................................................................................................. 20
DOMESTIC HOTWATER SYNOPTIC menu procedures............................................................21
Checking status of chillers for the production of domestic hot water................................................................. 21
Setting a daily time period for the production of domestic hot water................................................................. 22
Setting the anti-Legionella cycle......................................................................................................................... 23
User manual - Date time MENU procedures .......................................................................24
Setting the time of the system............................................................................................................................. 24
Setting the date of the system ............................................................................................................................ 25
User manual - SEASON MENU procedures ........................................................................26
Setting the season of the system........................................................................................................................ 26
User manual - DISPLAY MENU procedures ........................................................................27
Setting the language of the system .................................................................................................................... 27
Setting the visual contrast of the display ............................................................................................................ 27
Setting the screen saver ..................................................................................................................................... 28

ALARMS MEMORY menu procedures........................................................................................29
Alarm log display ................................................................................................................................................ 29
Description label alerts ....................................................................................................................................... 30
SETUP MENU procedures ...........................................................................................................31
Entering password for level selection................................................................................................................. 31
Setup menu - UNIT SETUP procedures...............................................................................32
Setting working mode at HEATING (Password 101 or 303)................................................................................ 32
Setting working mode at COOLING (Password 101 or 303) .............................................................................. 33
Setting the compensation function of the working mode (Password 303) ......................................................... 34
Setting the type of units installed (Password 303).............................................................................................. 35
Setup menu - DHW SETUP procedures...............................................................................36
Setting number of units for DHW production (Password 303) ............................................................................ 36
Modbus addresses for units for DHW production (without reserve chiller) ........................................................ 37
Modbus addresses for units for DHW production (with reserve chiller) ............................................................. 38
Setting simultaneous loads in DHW production (Password 101 or 303) ............................................................39
Setting RAS activation delay for DHW production (Password 101 or 303) ........................................................ 40
Setting diverter valve activation time for DHW production (Password 303) ....................................................... 41
Setting ON/OFF band in DHW production (Password 101 or 303) .................................................................... 42
Setting a hysteresis delta in DHW production with several units (Password 303).............................................. 43
Setting the defrosting direction during DHW production (Password 303).......................................................... 44
Setup menu - SYSTEM SETUP procedures ........................................................................45
Setting remote control (Password 101 or 303).................................................................................................... 45
Modbus addresses for the creation of a BMS system........................................................................................ 46
Setting the baud rate of the serial port of the supervisor (Password 303) ......................................................... 49
Setting the address of the serial port of the supervisor (Password 303)............................................................ 50
Setting the presence of expansion modules (Password 303) ............................................................................ 51
Viewing network status (Password 101 or 303) .................................................................................................. 52
Setup menu - PLANT SETUP procedures...........................................................................53
Setting the number of units installed (Password 303) ........................................................................................ 53
Setting the reserve chiller function (Password 303) ........................................................................................... 54
Setting type of unit rotation (Password 303) ....................................................................................................... 55
Setting the control logic of the units (Password 303) ......................................................................................... 56
Setting ON/OFF delay (Password 101 or 303).................................................................................................... 58
Setting ON/OFF power threshold (Password 101 or 303) .................................................................................. 59
Setting activation with DELTA T control (Password 101 or 303) ......................................................................... 60
Setting deactivation with DELTA T control (Password 101 or 303) ..................................................................... 61

4GB 4598010_00
Marketing Manager
Signature
AERMEC S.p.A.
I-37040 Bevilacqua (VR) Italy – Via Roma, 996
Tel. [phone]
Telefax 0442 93730 – ([phone]
www .aermec. com - info @aermec. com
SERIAL NUMBER
MULTI CONTROL
CE DECLARATION
OF CONFORMITY
We, the undersigned, hereby declare under our own responsibility that the assembly in question,
defined as follows:
NAME MULTI CONTROL
TYPE Remote panel
To which this declaration refers, complies with the following harmonised standards:
IEC EN 60730-1 Safety standard
IEC EN 61000-6-1
IEC EN 61000-6-3 Immunity and electromagnetic emissions for residential environments
Thereby, compliant with the essential requirements of the following directives:
- LVD Directive: 2006/95/EC
- Electromagnetic Compatibility Directive 2004/108/EC
Bevilacqua 15/01/2011

5
4598010_00 GB
Keep package dry DO NOT step on the packaging Handle with care
Safety symbols
Voltage hazard
Attention
Danger moving parts
Precautions and Safety Standards
Keep the manuals in a dry place, in order to prevent deterioration, for at least 10 years
for any further reference.
Read all of the information contained in this manual carefully and completely.
Pay particular attention to the user regulations accompanied by “DANGER” or
“ATTENTION” in so much as, if not complied with, the unit or objects may be
damaged and/or persons injured. For anomalies not contemplated by this manual,
contact the area After-sales Service as soon as possible.
The appliance must be installed in such a way that maintenance and/or repair
operations are possible.
The appliance warranty does not cover the costs for ladders, scaffolding, or other
elevation systems that may become necessary for carrying out servicing under
warranty.
AERMEC S.p.A. declines all responsibility for any damage due to improper
use of the machine, partial or hasty reading of the information contained in this manual.
Attention: this product contains electric and electronic appliances that
cannot be disposed of through normal municipal collection channels.
There are special collection centres for these products.
The electric and electronic appliances must be treated separately and in
compliance with the laws in force in the country of use.
Batteries or accumulators present in the appliances must be disposed of
separately according to the provisions of the municipality of use.
Indications regarding waste disposal
Notes concerning manuals

6GB 4598010_00
Type of systems managed by MULTI CONTROL
- System for the production of water only for cooling/heating systems.
- Possibility of implementing and managing 2-pipe or 4-pipe systems.
- Management of units based on the thermostats of each appliance.
- No remote control besides the MULTI CONTROL accessory panel.
- Compensation of work setting by means of outdoor air available only on units equipped with outdoor air probe.
• Systems without additionalVMF CRP modules:
MULTI CONTROL
Unit (1)(*) Unit (2)(*) Unit (3)(*) Unit (4)(*)
(*) The MULTI CONTROL accessory manages the units through an RS485 serial connection; for the
system to work properly, all the units must be equipped with the MODU485A accessory.
RS485 serial connection

7
4598010_00 GB
- System for production of domestic hot water, managed by 3-way diverter valves, and supplementary electric resistance to
reach temperatures suitable for execution of the anti-legionella cycle.
- Possibility of implementing and managing 2-pipe or 4-pipe systems.
- Management of units based on:
• thermostats of each appliance.
• DELTA T on system.
- Remote control through VMF CRP number 3.
- Compensation of work setting through outdoor air available by means of KSAE accessory.
• Systems with additionalVMF CRP modules:
(*) The MULTI CONTROL accessory manages the units through an RS485 serial connection; for the
system to work properly, all the units must be equipped with the MODU485A accessory.
A B C
AAAA
AAAA
A
A
A
A
SAS
SUW
SIW
SAE
B
MULTI CONTROL
Unit (1)(*) Unit (2)(*) Unit (3)(*) Unit (4)(*)
RS485 serial connection
Component Function
VMF CRP (1)
Accessory module for management of:
- 3-way diverter valves.
- System inlet and outlet water probe (SIW, SUW).
- DHW storage tank water probe (SAS).
- KSAE accessory for outdoor air temperature (SAE).
VMF CRP (2) Accessory module for management of supplementary electric resistance in DHW storage tank.
VMF CRP (3)
Accessory module making it possible to remotely manage some functions:
- System On/Off, Alarm reset, Season changeover (via Inputs).
- Alarm summary, Alarm presence, System status (ON/OFF), Season status (HEATING/COOLING), Season
changeover (via Outputs).
VMF-CRP
(1) (2) (3)

8GB 4598010_00
•VMF CRP 1 connections (3-way valves and probes management):
VMF CRP (1)
1
ON
234
Serial Address:
T-
T+
GND
0VAC
24VAC
0VAC
24VAC
L
N
PE
230V~50Hz
25VA
230
0
24
0
IL TR1
FUSE 1.25A 24VAC
0VAC
SIW
MAX 230V~2A MAX 230V~2A MAX 230V~2A MAX 230V~2A
1.5 mm2 (AWG 16)
MAX 30m
0.34 mm2 (AWG 22)
MAX 30m
SUW
V3VD (1)
SAS
SAE V3VD (2) V3VD (3) V3VD (4)
RS 485
Code Component Input to enable probe Available as
SIW Primary hydraulic circuit INLET
water probe ID1 (CLOSED) on terminal board J4 SPLW (1) accessory
SUW Secondary hydraulic circuit OUTLET
water probe ID2 (CLOSED) on terminal board J4 SPLW (2) accessory
SAE External air probe ID3 (CLOSED) on terminal board J4 KSAE accessory
SAS DHW storage tank probe ID4 (CLOSED) on terminal board J4 SDHW accessory
V3VD (1) 3-way diverter valve unit 1 / Component NOT supplied
V3VD (2) 3-way diverter valve unit 2 / Component NOT supplied
V3VD (3) 3-way diverter valve unit 3 / Component NOT supplied
V3VD (4) 3-way diverter valve unit 4 / Component NOT supplied

9
4598010_00 GB
•VMF CRP 2 connections (supplementary resistance management on DHW):
VMF CRP (2)
1
ON
234
Serial Address:
T-
T+
GND
0VAC
24VAC
0VAC
L
N
PE
230V~50Hz
25VA
230
0
24
0
IL TR1
FUSE 1.25A 24VAC
0VAC
MAX 230V~2A
1.5 mm2 (AWG 16)
MAX 30m
RAS
RS 485
ARE PRE
Code Component Available as
RAS Supplementary electric resistance for DHW Component NOT supplied
ARE
Resistance alarm presence output
CLOSED = Alarm
OPEN = No alarm
Component NOT supplied
PRE
Resistance presence output
CLOSED = Resistance present in system
OPEN = No resistance in system
Component NOT supplied

10 GB 4598010_00
•VMF CRP 3 connections (remote control management):
VMF CRP (3)
1
ON
234
Serial Address:
L
N
PE
230V~50Hz
25VA
230
0
24
0
IL TR1
FUSE 1.25A 24VAC
0VAC
MAX 230V~2A MAX 230V~2A MAX 230V~2A MAX 230V~2A
1.5 mm2 (AWG 16)
MAX 30m
AGS SGS SSI ASM
T-
T+
GND
0VAC
24VAC
0VAC RS 485
AGI RGS CCS
Code Function Description
ASG General System Alarm Closed = Alarm in system
Open = No alarm in system
SGS General System Status Closed = System ON
Open = System OFF
SSI System Season Situation Closed = WINTER
Open = SUMMER
ASM General system alarm Closed = Alarm in progress
Open = No alarm in progress
AGI General System Enabling Closed = Switch system on
Open = Switch system off
RGS General System Reset Closed = reset system
CCS Season Changeover Control Closed = Set WINTER
Open = Set SUMMER