Caleffi 600094A Instruction/Installation Manual

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Page 1

LEGIOMIX® electronic mixing valve

H0002997.08

www.caleffi.com

INSTALLATION AND COMMISSIONING MANUAL

Connect to 24 VAC

power source

6000 series

Function

The electronic mixing valve is used in centralized systems that produce and distribute domestic hot water. It maintains the temperature of the domestic hot water delivered to the user when there are variations in the temperature and pressure of the hot and cold water at the inlet or in the draw-off flow rate. The LEGIOMIX® electronic mixing valve provides precise temperature control over very low and very high flow rate demand, minimal pressure drop with a ball valve control element, automatic self-cleaning to prevent scale formation and easy-to-use digital interface with data logging, alarming and status indication. The LEGIOMIX electronic mixing valve is furnished with a controller with LCD user interface that provides a set of programs for circuit thermal disinfection to kill Legionella. The controller is configurable via keypad, or local or remote computer. Depending on the type of system and habits of the user, temperature levels and operation times can be programmed as desired. In addition, it comes standard with monitoring and remote control connections.

The LEGIOMIX 6000 series electronic mixing valve is powered by 24 VAC. (Caleffi provides a 115 / 24 VAC transformer in the package.) It is ICC-ES certified to ASSE 1017 and CSA B125.3. It complies with codes IPC, IRC, NPC and UPC for use in accordance with the US and Canadian plumbing codes, and standard NSF/ANSI 372, low lead. Also, it meets the requirement of CSA Z317.1 Special Requirement for Plumbing Installations in Health Care Facilities, certifed by ICC-ES. .

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SAFETY INSTRUCTION

This safety alert symbol will be used in this manual to draw attention to safety related instructions. When used, the safety symbol means ATTENTION! BECOME ALERT! YOUR

SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD.

CAUTION: All work must be preformed by qualiﬁed personnel trained in the

proper application, installation, and maintenance of systems in accordance with all applicable codes and ordinances.

CAUTION: If the electronic mixing valve is not installed, commissioned and maintained properly, according to the instructions contained in this manual, it may not operate correctly and may endanger the user.

CAUTION: Make sure that all the connecting pipework is water tight.

CAUTION: When making the water connections, make sure that the pipework

connecting the LEGIOMIX electronic mixing valve is not mechanically overstressed. Over time this could cause breakages, with consequent water losses which, in turn, could cause harm to property and/or people.

CAUTION: Water temperatures higher than 100ºF (38ºC) can be dangerous. During the installation, commissioning and maintenance of the LEGIOMIX electronic mixing valve, take the necessary precautions to ensure that such temperatures do not endanger people.

CAUTION: Safety measures must be in place before engaging disinfection mode. Anti-scald protection devices, certiﬁed to ASSE 1016 or ASSE 1070, at all downstream ﬁxtures, must be installed.

CAUTION: To prevent any damage which will cause the electronic mixing valve to not operate correctly, treat highly aggressive water before entering the electronic mixing valve. Be sure water hardness is less than 10 grains.

CAUTION: IMPORTANT: Risk of electric shock. The back panel and mixing valve contain live circuits. Cut off the electric supply before performing work. Failure to follow these instructions may result in injury of persons or damage to property.

CAUTION: When turning on conﬁrm the desired language. English is the default language. But, if not selected after 1 minute, the menu will go directly to the date and time choice. Language can then be selected always in “settings”.

Leave this manual for the user.

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CONSIGNE DE SÉCURITÉ

Ce symbole d'avertissement servira dans ce manuel à attirer l'attention sur la sécurité concernant instructions. Lorsqu'il est utilisé, ce symbole signifie.

ATTENTION! DEVENEZ ALERTE ! VOTRE SÉCURITÉ EST EN JEU ! NE PAS SUIVRE CES INSTRUCTIONS PEUT PROVOQUER UN RISQUE DE SECURITE.

ATTENTION: Tous les travaux doivent être effectués par du personnel

qualifié formé à la bonne application, installation et maintenance des systèmes conformément aux codes et règlements locaux.

ATTENTION:

Si le réducteur de pression, mitigeur électronique, n'est pas installé,

mis en service et entretenu correctement, selon les instructions contenues dans ce manuel, il peut ne pas fonctionner correctement et peut mettre en danger l'utilisateur.

ATTENTION: S'assurer que tous les raccordements sont étanches.

ATTENTION: Lorsque vous effectuez les raccordements d'eau, assurez-

vous que la tuyauterie reliant le LEGIOMIX mitigeur électronique n'est pas mécaniquement des overstressed. Au fil du temps, ceci pourrait causer des ruptures, avec pour consequence des pertes en eau qui, à leur tour, peuvent causer des dommages à la propriété et/ou les gens.

ATTENTION: Les températures de l'eau supérieure à 100°F (38°C) peut être dangereux. Au cours de l'installation, mise en service et l'entretien de le réducteur de pression, le LEGIOMIX mitigeur électronique, prendre les precautions nécessaires afin de s'assurer que de tells températures ne compromettent pas les gens.

ATTENTION: Des mesures de sécurité doivent être en place avant d’engager le mode de désinfection. Les dispositifs de protection anti-brûlure, certiﬁé à ASSE 1016 ou 1070 l’ASSE, à tous les appareils en aval, doit être installé.

ATTENTION: Pour prévenir tout dommage qui provoque le mitigeur électronique à ne pas fonctionner correctement, le traitement de l’eau très agressive avant d’entrer dans la vanne de mélange électronique. Assurezvous que la dureté de l’eau est inférieure à 10 grains.

ATTENTION: Risque de choc électrique. Le fond d’armoire et la vanne mélangeuse sont sous tension. Couper l’alimentation électrique avant toute intervention. Le non respect de ces règles de sécurité peut entraîner des dégâts matériels et/ou des blessures aux personnes.

ATTENTION: Lors du passage de conﬁrmer la langue désirée. L’anglais est la langue per

défault. Si la langue n’est pas sélectionnée après 1 minute, le menu Aller directement à la date et l’heure de choix. La langue peut alors être sélectionné toujours dans “Paramètres”.

LAISSEZ CE MANUEL AVEC L’UTILISATEUR

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WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

AVERTISSEMENT: le plomb, qui est connu dans l’État de Californie pour causer le cancer, dommages à

la naissance ou autre. Pour plus d’informations rendez-vous www.P65Warnings.ca.gov.

Product range

6000 series Electronic mixing valve with programmable thermal disinfection, 24 VAC with union

connections, NPT male, sweat and press............................................sizes ¾”, 1”, 1¼”, 1½” & 2”

6000 series Electronic mixing valve with programmable thermal disinfection, 24 VAC with ANSI 150

RF ﬂanged connections............................................................................................sizes 2½” & 3”

Code 755052 Modbus-to-BACnet gateway

Technical specifications

Valve body

Materials: - Body: DZR low-lead brass

- Ball: sizes ¾” - 2”: low-lead brass, chrome-plated sizes 2½” & 3”: AISI 316 stainless steel

- Slip-on flanges for sizes 2½” & 3”: galvanized carbon steel

- O-ring seals: peroxide-cured EPDM

- Ball seats: PTFE

Max. body pressure rating: 230 psi (16 bar) Max working pressure: 150 psi (10 bar) Max. inlet temperature: 212°F (100°C) Temperature gauge scale: 32 - 176°F (0 - 80°C) Suitable fluids: water Max. water hardness: 10 grains

Ce produit peut vous exposer à des produits chimiques comme

Main connections: -NPT male, sweat and press union ¾”,

-ANSI B16.5 150 CLASS RF

Actuator, 3-wire floating fail-in-place

Electric supply: 24 VAC - 50/60 Hz Power consumption: 6 VA Protection cover: self-extinguishing VO Protection class: IP 65 (NEMA 4/4X) Ambient temperature range: 14 - 130°F (-10 - 55°C)

Electric supply cable length: 31½” (0.8 m)

Max. distance for control signal wire: 500 ft (150 m) cable 2 conductor x AWG 18 800 ft (250 m) cable 2 conductor x AWG 16

1", 1¼", 1½" and 2"

2½” & 3”

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Controller, LCD user interface/display

Materials: - Housing: self-extinguishing ABS, color white RAL 1467

- Cover: self-extinguising SAN, smoked transparent Electric supply: 24 VAC (min 21.6, max 26.0 VAC)- 50/60 Hz (115/24 VAC transformer included in package) Power consumption: 6.0 VA Adjustment temperature range: 70 - 185°F (20 - 85°C) Disinfection temperature range: 100 - 185°F (40 - 85°C) Ambient temperature range: 32 - 120°F (0 - 50°C) Protection class: IP 54 (wall mounting) (Class II appliance) Mounting bracket: DIN rail

Mixing valve actuator current draw: 1 A max / 24 V Alarm relay rating (R2): 5 A resistance (2 A inductance) / 24 V Contact rating (R1, R3, R4): 10 A resistance (2 A inductance) / 24 V (A 50 VA Class 2 120/24 VAC transformer is included)

Fuses: 1 (main): 400 mA Fuses: 2 (mixing valve): 1 A Charge reserve: 15 days in the event of electric supply failure, with a 3 cell rechargeable 3.6 V 140 mAh buffer battery Battery recharging time: 140 hours Approvals: CE, FCC part 15

Temperature sensors

Body material: stainless steel Type of sensitive element: NTC Working temperature range: 14 - 260°F (-10 - 125° C)

Resistance: 10,000 Ohms at 77° F (25° C) Time constant: 2.5 Max. distance for mixed outlet or return (recirculation) sensor:

500 ft (150 m) cable 2 conductor x AWG 18

800 ft (250 m) cable 2 conductor x AWG 16

Mixing valve performance

Accuracy: ± 3º F (± 2º C) Max. operating differential pressure (dynamic): 20 psid (1.4 bar) Max. ratio between inlet pressures (H/C or C/H): 2.1

Certifications

1. ASSE 1017/CSA B125.3, certified by ICC-ES, file PMG-1357.

2. Meets the requirement of CSA Z317.1 Special Requirement for Plumbing Installations in Health Care Facilities, certifed by ICC-ES, file PMG-1357.

3. Complies with NSF/ANSI 372, Drinking Water System Components Lead Content Reduction of Lead in DrinkingWater Act, California Health and Safety Code 116875S.3874, Reduction of Lead in Drinking Water Act, as certifed by ICC-ES, file PMG-1360.

Size ¾" 1" 1¼" 1½" 2" 2½" 3"

Minimum (1) 2.2 / 8.3 3.1 / 11.7 4.4 / 16.6 6.6 / 25 8.8 / 33.3 17.0 / 64 22.0 / 83.3

Design Flow (2) 27 / 102 58 / 220 66 / 250 93 / 352 131 / 495 288 / 1,090 329 / 1,245

Maximum (3) 43 / 172 94 / 356 107 / 405 152 / 575 215 / 814 470 / 1,780 537 / 2,033

Cv 9.7 21 24 34 47 105 120

Recommended Flow Rates (gpm/lpm)

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°C

100

120

CONSULT TECHNICAL BROCHURE 1086 FOR COMPLETE GUIDANCE ON SIZING AND SELECTION.

(1) To ensure stable operation and a ± 3° F accurate temperature control. Minimum ﬂow rate is 0 gpm when recirculation ﬂow rate is greater than or equal to the valve size minimum ﬂow rating. (2) Suggested maximum ﬂow rate for optimum modulating control (at 7.5 psid pressure drop). (3) Maximum recommended differential pressure is 20 psid to ensure stable operation and accurate temperature control.

Characteristic components

THURSDAY

10/12/2017

•

M127

F TR120•F

ADJUSTMENT

RUNNING

110

130

150

170

190

°C

1) L egiomix digital regulator

1) LEGIOMIX® digital controller

2) Mix ing va lve

2) Mixing valve

3) Mixing valve 24 V 3-wire ﬂoating actuator

3) Mix ing va lve a ctuator

4) Mixed outlet water temperature sensor

4) Mix ed water flow prob e

5) Return water (recirculation) temperature strap-on sensor

5) R eturn p robe (rec irculation)

6) Mixed outlet water temperature gauge

6) Mix ed water flow tempe rature g auge

7) Actuator mounting clip

8) For Flanged version only: removable operating lever

7) A ctuator fix ing clip

210

Package contents

• Digital controller, consisting of housing and base for electric connection

• DIN bar and mounting wall anchors

• Mixing valve

• Actuator

• Mixed outlet water temperature sensor

• Return water temperature strap-on sensor

• Spare fuses

• Installation and commissioning manual

• 115 / 24 VAC transformer

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Operating principle

The electronic mixing valve mixes hot water from storage and cold water from the main supply to maintain a constant controlled set temperature of mixed water at the outlet. The controller measures the temperature of the mixed water at the valve outlet with temperature sensor and modulates the mixing valve position to maintain the desired set temperature. Despite variations in pressure drop or hot and cold water usage or variations in inlet temperature, the LEGIOMIX automatically controls the water temperature to meet the temperature setting.

A built-in clock is used to enable optional disinfection cycle programs. The system is disinfected by raising the water temperature to a speciﬁc value for a speciﬁc time duration. Using the recirculation temperature sensor, water returning from the distribution circuits can be measured for thermal distribution control. This measured temperature is used to check and control the temperature reached over all or part of the distribution network with this sensor placed at the end of the recirculation piping circuit.

The LEGIOMIX

can be used to confirm that the correct temperature and time for thermal disinfection have been reached before taking the appropriate corrective action. All the parameters are updated every day and logged, with temperatures recorded every hour.

There is an RS-485 connection for remote monitoring and configuration and, with specific relays, makes alarm signals and controls available to other interconnected system devices. A Modbus-to-BACnet gateway and inlet check valves are available separately.

recirculation sensor

mixed outlet sensor

LEGIOMIX® Modbus-to-BACnet Gateway

8 0 6

°C

0 2

BACnet Building Automation System

Modbus Building Automation System

Modbus-to-BACnet gateway for remote control

The LEGIOMIX Modbus-to-BACnet gateway, code 755052, allows the transfer of data to a Building Automation System using BACnet communication protocol.

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OkMenuShock

Mixed°C Return°C

TUESDAY 1 / 02/ 2017

ADJUSTMENT IN PROGRESS

°C

110

130

150 170

190 210

Relay contacts

Relay 1

Relay 2

Relay 3

Relay 4

FLUSH VALVES (reduce temperature) 2nd THERMOSTAT (aquastat)

ALARM

(unsuccessful

disinfection cycle)

RECIRC PUMP (disinfection)

RS485 MODBUS 2-WIRE COMMUNICATION*

24 VAC

OPTIONAL MODBUS/ BACNET GATEWAY

ETHERNET TO LAN

24 VAC FLOATING CONTROL

MIXED OUTLET WATER TEMPERATURE SENSOR

RETURN WATER TEMPERATURE STRAP-ON SENSOR

*RS485 ModBus is integral to the controller. It may be used directly and requires “mapping” by the user to access the data, OR, Optional gateway converts ModBus data to BACnet data, available to BAS (or any BACnet).

A0 A1 A2 A3 A4 A5 A6 A7

B0 B1 B2 B3 B4 B5 B6 B7

SPL

RUN

ERR

PWR

GND Rx/Tx/+

+PWR

-PWR

FRAME GND

RELAY 1, 2, 3, 4

POWER SUPPLY: 24 V~ 6 VA

IP 54 T50

FUSE 1

(Main)

FUSE 2

(Mix)

RS485

MIXED PROBE

COM

20 21

RETURN PROBE

Manufactured by: PERRY ELECTRIC S.r.l. Via Milanese, 11 - 22070 VENIANO (CO) - ITALY Type 1CLCL002V24

LEGIOMIX

T 400 mA

T 1A

161718

Series 6000

H0002885 controller

1A/24V~

10(2) A

24 V~

10(2) A 24 V~

5(2) A 24 V~

10(2) A

24 V~

COM

OPEN

13 12 11 10

24 V~

RL 4

RL 3

RL 2

RL 1

BLACK

BLUE

BROWN

YELLOWGREEN*

Actuator-to-Control Wiring

Common

Open

Ground

Actuator has 3 extra wires (red/white/green) for an end switch and are not used.

CAUTION: Risk of electric shock. The back panel and mixing valve contain live circuits. Cut off the electric supply before performaning any work. Failure to follow these instructions may result in personal injury or damage to property.

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Back panel

To remove the electrical wiring base, turn it round and extract it from its housing.

Mixed outlet

sensors

Temperature

Thermal shock

activation

Shock

enabled

Common

Return

disabled

(factory setting)

Shock

Battery

–

Battery connected

Mixing valve fuse 1 A - 250 V delayed

Battery connection

Battery disconnected

Appliance fuse 400 mA-250Vdelayed

Closes Common Opens Earth Earth Neutral Live

Relay 4

Relay 3

Relay 2

Relay 1

PIN code

disabling button

valve

Mixing

Reset button

24 V

supply

Electric

Screw to close

the front cover

with hole

for lead-sealing

Temperature

sensor terminal

Relay contacts

disable

Reset

side view

Microswitch for enabling thermal shock function

RS485 Interface terminal

Connecting temperature sensors: The cable connecting the mixed temperature outlet and return temperature sensors must be installed in a dedicated raceway. If the connection cable shares the raceway with other live cables, an earthed shielded cable must be used.

In case of reverse polarity or power failure the system enters the BATTERY ALARM STATUS, see “Alarms” section.

Buttons and terminals on side view

The base has two buttons, which can be accessed by opening the front cover:

-Reset button

-PIN code disabling button

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Temperature sensor resistance values

disable

Reset

Appliance fuse 400 mA-250Vdelayed

Mixing valve fuse 1 A - 250 V delayed

Relay contacts

Electric

supply

24 V

Mixing

valve

Relay 1

Relay 2

Relay 3

Relay 4

Closes Common Opens Earth Earth Neutral Live

PIN code

disabling button

Reset button

Screw to close

the front cover

with hole

for lead-sealing

Microswitch for enabling thermal shock function

Temperature

sensor terminal

To remove the electrical wiring base, turn it round and extract it from its housing.

ºF ºC Ω ºF ºC Ω ºF ºC Ω ºF ºC Ω

-5 -20 100254 60 15 15310 130 54 3049 200 93 829

5 -15 72937 70 21 11882 140 60 2489 210 99 702

15 -10 53669 80 27 9297 150 65 2044 220 104 598

25 -4 39919 90 32 7333 160 71 1688 230 110 511

32 0 32648 100 38 5827 170 77 1402 240 115 439

40 4 26100 110 43 4664 180 82 1171 250 121 378

50 10 19900 120 49 3758 190 88 983

Location of cable connectors

When making the electrical connections, follow this sequence for wiring the terminal strip and tightening the seals:

1. Power supply

2. Mixing valve control

3. Mixed outlet temperature sensor

4. Return temperature sensor

5. RS485

6. Relay 3

7. Relay 1

8. Relay 4

9. Relay 2 Strain relief cord connectors (white) are provided for all 9 controller housing holes. Clear plastic plugs also provided for unused holes.

Enabling functionsDipswitch settings

-Thermal Shock enable/disable.

-Internal battery (do this during installation)

ATTENTION: If the battery is not activated the battery alarm will be displayed.

CAUTION!

The controller is congured to automatically execute a daily rotation cycle to ensure efcient ball operation and cleaning. This occurs directly after the disinfection program, if

active, or after 24 hours have elapsed if disinfection is not active. Deactive this function

Mixed outlet

Common

sensors

Temperature

Thermal shock

activation

Shock

enabled

Return

Shock

disabled

(factory setting)

Battery

–

Battery connected

Battery connection

Battery disconnected

through the ANTI-CLOG setting by entering the release code 5566 and conrming with ON-

OFF. Eliminating this function increases the risk of deposits forming on moving parts of valve. If it is necessary to eliminate the disinfection function as well, proceed as follows:

1. disable the ANTI-CLOG function; 2. eliminate the disinfection function.

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Connection cable cross-sections and lengths for circuit board wiring

Unsheathing

Cable seal No. Cable type

1 3 x AWG 16 5 / 130

2 6 x AWG 18 6 / 150

3 2 x AWG 18 8.25 / 210

4 2 x AWG 18 8.25 / 210

5 3 x AWG 18 8.25 / 210

6 2 x AWG 16 6.25 / 160

7 2 x AWG 16 6.25/ 160

8 2 x AWG 16 7 / 180

9 2 x AWG 16 6.25 / 160

(in/mm)

including stripping

(L)

Connection layout: connections must not create thrust stresses on the circuit board

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8 97

Front panel

Mixed °C Return ° C

THURSDAY 10/12/ 2017

127OF TR120OF ADJUSTMENT RUNNING

65432

OkMenuShock

Cut the wires of the auxiliary microswitch (if not used) and insulate electrically before wiring (colors: white, green and red).

1. LCD display*

2. LED display: Time

3. LED display: Tmixed- Mixed Outlet water temperature (°C only)

4. LED indicator

- ON

- Status OK

- Battery

- Alarm

*Tmixed and Treturn is displayed, default °F. Can be changed to °C in settings (Cels.-Fahr.)

5. LED display: Treturn - return water (recirculation) temperature (°C only)

6. Mixing valve open/close LED

7. Thermal shock button

8. Navigation buttons

- Menu

- OK

- UP

- DOWN

9. RS 485 front connection

Page 13

Indication description

Return ˚C

TUESDAY

RUNNING

Indications on LED display

3 LED displays on the front of the controller show the clock time and termperature of the mixed outlet water temperature and return temperature sensors at all times.

Time (24 hr clock)

Mixed Outlet (°C)

Return (Recirc) (°C)

The default setting for the temperatures is OFF because the default temperature units are ºF. If the units are changed to ºC, in the conﬁguration menu, these LEDs will read in ºC. Also, if the recirculation sensor has been set as “not present” in SETTINGS, or is faulty in program 0, the related display remains OFF. Temperatures are in ºC only, and can not be changed to ºF.

Hour and minutes display (24 hour system)

Sensor temperature display (in ºC) Resolution 1 ºC

Sensor warning display “out of range” at top. (blinking)

Sensor warning display “out of range” at bottom. (blinking)

Sensor warning display “open”. (blinking)

Sensor warning display “short circuit”. (blinking)

LED indicators

The following LED indicators are located on the front of the controller:

Electric power supply LED: red LED: steadily ON when voltage is present.

Mixing valve LED:

Return ˚C

-red LED: on when opening hot water.

-blue LED: on when opening cold water.

Controller OK status LED: green LED: steady ON when there are no faults or active alarms.

Faulty battery LED: red LED: on steady there is a battery fault; otherwise it is Off.

Generic Alarm LED: red LED: steadily ON when there is an alarm (sensor fault, thermal shock in progress, reset).

LCD indicators

Green backlit alphanumeric displays with 4 rows of 20 characters each, for setting parameters, scheduling operations, displaying error messages and machine status are on the front of the controller. Buttons on the front panel (“MENU”, “UP”. “DOWN”, and “OK”) can be used to scroll through the menu items to conﬁgure the controller, set various parameters and view the temperature log.

10/10/2017

127OF TR120OF

ADJUSTMENT

TUESDAY 1 / 02/ 2017

140OF TR135OF

T DISINFECTION RUNNING

Page 14

Operating status

C HE C K ON DIS IN FE C TI ON

Depending on the times and the programs that have been set, the controller may be in one of the following operating modes.:

• Adjustment;

• Disinfection;

• Flushing;

• Thermal shock (this function has #1 priority over other modes)

In the event of trouble due to the LEGIOMIX or the system, the device manages and reports the alarm and, depending on the situation, may maintain operation or not. Accordingly, a distinction is made between the following:

• Active with alarm

• Inactive with alarm The LEGIOMIX is equipped with a rechargeable battery that keeps the clock working and

maintains selected programmed settings during loss of power. In the event of blackout, to ensure the longest battery life, the controller assumes the status:

• Inactive on Low Power

Adjustment (modulation)- default mode

LEGIOMIX measures the temperature of the mixed water at the valve outlet with temperature sensor and adjusts (modulates) the mixing valve position to maintain the desired set temperature.

Disinfection

LEGIOMIX runs the disinfection phase, which consists of raising the water temperature to a preset value for a specific time duration, by operating the mixing valve as required.

Using the menu, set the days of the week for the disinfection phase to run. At the end of disinfection, statistical data relating to the just concluded disinfection are logged. This mode begins and ends automatically at a start time (Time ON) and end time (Time OFF)

that can be selected by the user in SETTINGS.

Safety measures must be in place before engaging disinfection mode. Anti-scald

protection devices, certied to ASSE 1016 or ASSE 1070, at all downstream xtures,

CONFIRMING DISINFECTION

Temp erature

SET2 - P R G1A

SET3 - P R G1B o r 2

tDIS= Σts> tM IN

Time ON Time OFF

NOTE: Graph is for reference only, not shown on display or logged data.

Time

Page 15

Conrming disinfection

If, within the time span (Time OFF - Time ON), the actual disinfection time reaches tDIS is greater than the set tMIN, the disinfection is concluded with a positive outcome. It automatically exits this status and returns to the adjustment (modulating) mode.

If the sufficient time tDIS is not reached, the disinfection phase ends at Time OFF.

Flushing

LEGIOMIX automatically enters this mode at the end of the disinfection phase, and is used to make the water temperature return to the adjustment value (SET1 value) quicker, or to periodically clear (or flush) the storage of impurities. This phase is ended after a time selected with the tFLUX parameter. When flushing time has ended, relay 1, relay 4, and the controller returns to the “adjustment” mode.

Thermal shock

LEGIOMIX adjusts the mixed outlet water temperature at the set shock value (SETSH) for a selected time duration (tSH). The Shock button on the front of the controller can be used then to initiate thermal disinfection, the manual mode. This function is associated with activation of alarm 4 (AL4), and illumination of the alarm LED. Thermal shock can be started by pressing the specific button on the front panel (press and hold for at least 5 seconds) while the operating screen is displayed, or to program it with the menu item for a delayed execution (countdown in minutes), or by remote control.

Thermal shock operation can be stopped, if needed, by pressing the shock button and confirming with the “OK” button, or by remote control.

This is a potentially dangerous function so a jumper is provided on the printed circuit board to enable it. If the jumper is closed, the Shock function can be used; if it is open, it is not available (see Back Panel section).

At the end of the Thermal shock phase, the controller reverts to the “adjustment” (modulating) mode.

Low power

LEGIOMIX goes into low power mode with loss of power, and continues to run the internal date clock. NOTE: in this condition there is no power for switching relays, so the controller does not perform the adjustment or disinfection functions, sensor temperatures can not be acquired, and no communication functionality is available. The mixing valve remains in the last state when power went out. LCD and LED displays are off, all LEDs are off, except the “alarm” LED, which will be flashing.

When the power comes back on, the blackout is recorded in the log (alarm AL5) and the controller returns to operating mode as programmed, unless the power failure lasts long enough to completely run down the battery. In this case, LEGIOMIX will be reset to default values when the power is restored.

In the event of a reset or extended power failure, factory settings are restored. If modifying the factory settings, make a copy of the new settings.

ANTI-CLOG function

The LEGIOMIX controller is configured to execute a daily ball rotation cycle, to ensure efficient ball operation and cleaning. This occurs after the disinfection program concludes, if active, or in any case after 24 hours has elapsed when disinfection is not active. The ANTI-CLOG function can be deactivated through the ANTI-CLOG step in the “SETTINGS” menu by entering the release code 5566 and confirming with ON-OFF. Eliminating this function increases the risk of deposits forming on the moving parts of the valve.

If it is necessary to also eliminate the disinfection function, proceed in the following order: 1. eliminate the ANTI-CLOG function, then 2. eliminate the disinfection function.

Page 16

Reset

On the back panel, there is a speciﬁc reset button, in case it is necessary to retore the initial settings.

If the date and time are not set after the reset, the controller will operate according to the factory default settings.

Actuation relays

The circuit board and terminals show the relay contacts used to manage auxiliary equipment and to report alarms.

• Relay 1: Circulation pump (active during disinfection) Connect Relay 1 in parallel to

time clock or aquastat contacts (whatever switch is controlling recirculation pump).

• Relay 2: Generic alarm (sensor fault, battery fault, blackout or clock failure).

• Relay 3: Second thermostat. Wire in parallel to High Temperature thermostat. Use to increase hot water supply temperature for thermal disinfection.

• Relay 4: ﬂushing valves

Summary of actuation relay status

Operating Status Adjustment Disinfection Flushing Thermal shock

Relay Contact status Contact status Contact status Contact status

Relay 1: recirc pump Open Closed Closed Closed

Relay 2: generic alarm Open Open Open Closed

Relay 3: second thermostat Open Cloase Open Closed

Relay 4: ﬂush valves Open Open Closed Open

Wiring diagram of relay 1 with a clock for managing the recirculation pump times.

Relay 1

Recirculation pump

Wiring diagram of relay 3 for connecting the second thermostat on hot water storage.

140°F

160°F

Storage primary pump

Relay 3

Page 17

Programs

The operation of the controller during disinfection can be set according to different programs, selected depending on the type of system and management of the system. Set the program, and the day and time to turn on and turn off disinfection, in parameters in SETTINGS.

Program 0

Features continuous mixed outlet water temperature modulation with automatic disinfection in a time band that can be set. Disinfection will run only when the Program Day (ProgDay) parameter has days selected (default is no days) and the TimeOn and TimeOff parameters are ﬁlled in (default is 00:00 for both). The return water temperature sensor is not used, but if present, it is used as a monitor only. During the disinfection phase, the mixed outlet water temperature must remain above SET2 for a time tDIS at least equal to tMIN, and if this occurs then disinfection has been successful. When this happens, disinfection then stops. If disinfection is not successful, there is no alarm signal. If alarm indication for unsuccessful disinfection is desired, use other programs.

Program 1A

Features continuous mixed outlet water temperature modulation with automatic disinfection in a time band that can be set. Disinfection will run only when the Program Day (ProgDay) parameter has days selected (default is no days) and the TimeOn and TimeOff parameters are ﬁlled in (default is 00:00 for both). The return water temperature sensor is not used, but if present, it is used as a monitor only. During the disinfection phase, the mixed outlet water temperature must remain above SET2 for a time tDIS at least equal to tMIN, and if this occurs then disinfection has been successful. When this happens, disinfection then stops. If the disinfection temperature is not reached or it cannot be maintained for a sufﬁcient period of time, the alarm for unsuccessful disinfection is generated. The alarm is recorded in the log. The ﬁrst time a button is pressed, the relay opens again. The other alarm indications are cleared at the next successful disinfection.

Program 1B

This program can only be set if the return water temperature sensor is set at present. Identical to the previous program (1A), the only difference is the successful outcome of the disinfection phase is checked via the return water temperature sensor in relation to SET3 instead of via the mixed outlet water temperature sensor in relation to SET2. As soon as conditions indicate successful disinfection, disinfection then stops. If the disinfection temperature is not reached or it cannot be maintained fora sufﬁcient period of time, the alarm for unsuccessful disinfection is generated. The alarm is recorded in the log. The ﬁrst time a button is pressed, the relay opens again. The other alarm indications are cleared at the next successful disinfection.

Program 2 (factory settings - default)

This program can only be set if the return water temperature sensor is used. By default, the disinfection is not enabled (no days are selected). If days are selected during commissioning, it is identical to the previous program (1B). The only difference is, if the return water temperature does not reach SET3 after a wait period (tWAIT) since the start of disinfection, the mixed outlet water temperature SET2 is increased by a value equal to (SET3 - TR reached), considering that SET2 can not in any case exceed the limit of SETMAX. This correction procedure (increasing only) of the disinfection SET is iterative: if necessary, it is repeated in the time span defined by the TimeOn and TimeOff at each time interval equal to tWAIT. As soon as conditions indicate successful disinfection, disinfection then stops. If the disinfection temperature is not reached or it cannot be maintained for a sufﬁcient period of time, the alarm for unsuccessful disinfection is generated. The alarm is recorded in the log. The ﬁrst time a button is pressed, the relay opens again. The other alarm indications are cleared at the next successful

Page 18

Thermal disinfection

The temperatures and corresponding disinfection times for the network must be chosen according to

the type of system and the related intended use. The following criteria is generally followed, guided by.....

T = 160º F (70º C) for 10 minutes T = 150º F (65º C) for 15 minutes T = 140º F (60º C) for 30 minutes Thermal disinfection is generally performed during times of reduced system usage, ie: nighttime. This

minimizes the potential for scald conditions to occur. Thermal disinfection is recommended to be run every day and at least once per week.

Safety measures must be in place before engaging disinfection mode. Anti-scald protection

devices, certied to ASSE 1016 or ASSE 1070, at all downstream xtures, must be installed.

Interupting disinfection Disinfection can be interupted while it is still in progress. On the working screen (showing the

message “disinfection in progress”), press the OK button once. The display shows the message “Cancel disinfection?”; and at this point, the OK button can be pressed to stop the disinfection phase and return to the adjustment function (without going through the ﬂush phase). If the OK button is not pressed, after a timeout of about 3 seconds, the display goes back to displaying the message “disinfection running”.

Table of thermal disinfection programs

Program # > 0 1A 1B 1B 2

type of

conrmation

Use of return

sensor

Return sensor

shown on LED

display

Adjustment

temperature

Disinfection

temperature

Alarm if

disinfection

unsuccessful

Recording in log

if disinfection

unsuccessful

Adjustment and simple disinfection without conﬁrming

NO NO YES YES YES

As monitor only As monitor only YES YES YES

Flow*: (SET1)

68 - 185º F

Flow*: (SET2)

104 - 185º F

NONE YES YES YES YES

Adjustment

and disinfection

conﬁrming on the

mixed outlet water

temperature

Flow*: (SET1)

68 - 185º F

Flow*: (SET2)

104 - 185º F

Adjustment and

disinfection check on

return temperature

to the central heating

system

Flow*: (SET1)

68 - 185º F

Recirculation: (SET3)

104 - 185º F

Continuous

disinfection

(max. 4 hours)

Recirculation:

(SET3)

104 - 185º F

- 24 hours

Adjustment only (default). If scheduled,

disinfection

conﬁrming.

Flow*: (SET1)

68 - 185º F

Recirculation: (SET3)

104 - 185º F - with adjustment of ﬂow*

up to the max value

*mixed outlet water temperature

Page 19

Entering programs and settings

Controller operation is based on an internal clock with calendar and automatic time adjustment. By navigating through the appropriate menu items and using the buttons on the front panel (“MENU”. “UP” , “DOWN” , and “OK”), the user can conﬁgure the controller, set the various parameters, and display the temperature log.

Functions of the conguration buttons

Description Display Button function Effect

Menu item - arrows beside the row

Other rows available

-arrows in the screen margin

Parameter selection

-cursor ﬂashing

“UP” , “DOWN”

+OK Opens the related submenue

Menu Go back to previous level

“UP” , “DOWN”

+OK

Moves the cursor to another

Increases or descreases the

Conﬁrms the setting - cursor

row

Displays other rows in the

parameter value

disappears and the value

becomes actual

Return to previous level

without making changes

Whatever status the controller is in (except Low Power), navigation around the various menus to read the various settings and view the stored log data is always possible. However, for safety purposes, the settings data can be modied only when the controller is in “Adjustment” mode. In particular, parameters can not be modiﬁed while the controller is in “disinfection”, “ﬂux” or “thermal shock” mode, and when the controller is in the “inactive with alarm” status. The various options are made availalble, depending on whether the return water temperature sensor has been enabled. To set programs 1B or 2, the return water temperature sensor must be set as Present. To be able to remove the return water temperature sensor (i.e. set it as Present of Absent), program 0 or 1A must be set ﬁrst.

Remote control

The controller can be controlled from a remote computer with the RS485 serial output connection, which can be accessed by hard-wired terminals and through the connector on the front panel. Since the interface is the multipoint bus type it is necessary for each controller connected on the bus to be identiﬁed by an appropriate address to avoid identiﬁcation conﬂicts. For a detailed description of the operations and controls that are available from a remote location using this interface, refer to the relevant documentation.

Contact Calefﬁ for list of registers (points) for mapping LEGIOMIX information to ModBus. Conﬁguation, mapping, hardware (routers, modem, etc.), and software are customer/user responsibility. Code NA10520 Modbus-to-BACnet gateway is available separately for translating ModBus to BACnet.

Page 20

Operating parameters

The operating parameters can be set in the appropriate menus, and are summarized below:

Summary of parameters. Setting ranges and factory (default) conguration.

Parameter Description Setting Range

Language Language shown on LCD display

Date/Time For Disinfection phase and log entries MM/DD/YY 01/01/2005

Time change Daylight saving time setting

I-E-F-D-ES-P-NLSL-HR-SR-RO

USA CUS. NO EUR

Factory (default)

conguration

ENGLISH

USA

Settings

Parameter Description Setting Range

LEGIOMIX “BUS iID”

SET_MAX

SET1

SET2

SET3

Return sensor present (Rec probe)

PGM program

ProgDay

TIME ON Start time for the programmed disinfection.

TIME OFF End time for the programmed disinfection.

tWAIT

tMIN

tFLUX

Number that identiﬁes this appliance (device) among those connected to the BUS.

Sets the max temperature limit: to protect the system. None of the SET values can exceed SET MAX.

Setpoint for Ta (mixed outlet temperature) during adjustment phase.

Setpoint for Ta (mixed outlet temperature) during disinfection phase.

Setpoint for Ta (return temperature) during disinfection phase, for programs 1B or 2.

The return sensor is analog (NTC).

To modify the working parameters for the disinfection phase.

Disinfection is conducted on the selected days. Day 1 is Monday.

Represents the time considered necessary for the system to bring the return water to a temperature above SET3.

The minimum time for the temperature measured by the mixed outlet water temperature sensor (program 1A) or the return water temperature sensor (programs 1B or 2) must remain above the disinfection setpoint so that disinfection will be completed successfully.

Duration of the ﬂushing phase that will start automatically when a disinfection phase is completed.

0 to 255 001

122 - 194°F 50 - 90°C

68 - 185°F 20 - 85°C

104 - 185°F 40 - 85°C

NO=absent YES=present

PRGM 0=0 PRGM 1A=1A PRGM=1B=2B PRGM 2=2

1 2 3 4 5 6 7 or

BLANK for each

digit to disable

disinfection

HHMM 0000-2359

1 to 255 min 002 min

0 to 254 min (max 4 hour 14 min)

from 0 to 2550 sec in 10 sec steps

Factory (default)

conguration

149°F

113°F

140°F

135°F

YES

No days selected

0200

0300

030 min

000 sec

Page 21

Parameter Description Setting Range

tPLAY

tMOTOR

ANTI-CLOG

Cels.-Fahr. Temperature units.

Delay due to gap in mechanical components during actuator movement, until the internal valve ball starts to move in the opposite direction.

Time required for the actuator to move the valve from the full closed to the fully open position. Default setting is recommended for all applications, do not change. Consult Calefﬁ otherwise. (This is NOT motor stroke time)

Ball rotation cycle to clean deposit formation for efﬁcient operation. To deactivate enter release code 5566 and conﬁrm with ON-OFF.

from 0 to 255 sec in 1 sec steps

from 8 to 320 sec in 2 sec steps

ON OFF

°F °C

Factory (default)

conguration

005 sec

100 sec

°F

Thermal shock

Parameter Description Setting Range Factory (default)

SETSH

tSH

Countdown Countdown before activating thermal shock 0 to 999 min 0001 min

Activate countdown Enables activation of countdown before thermal shock

Setpoint for Ta (mixed outlet water temperature) during shock phase.

Duration of thermal shock phase to be started manually by the user

86 - 185°F 30 - 85°C

1 to 4320 min 005 min

NO= not active

YES= active

conguration

140°F

NONE

Temperature History

Temperat. History, read only. See Log section, next.

Page 22

Log

But t ons Lock

RUNNING

The “log” is a FIFO (First In - First Out, loop buffer) that is continually updated and records parameters relating to adjustment and disinfection phases that occurred during the day. Data are stored for the last 40 days, after which the data for the ﬁrst day are overwritten, etc. The hourly average mixed outlet and return water termperatures are save to Eeprom every hour, and alarms are saved at the time they occur. The average hourly values of the current day can be viewed at any time. The disinfection data are saved when disinfection ends. The log (via speciﬁc menu item) can be viewed on the display or remotely via the RS485 serial interface. The parameters saved in the log are:

-Date (day, month, year)

-Set program. This is saved when disinfection starts.

-tDIS: actual disinfection time (in steps of minutes). When the set program is 0 or 1A, this parameter is the time when the temperature of the mixed outlet water was above SET2. When the set program is 1B or 2, this parameter is the time when the temperature of the return water was above SET3. This is helpful when it is less than tMIN, to understand how much greater the span of TIME ON: TIME OFF should be to complete the disinfection.

-TRMAX: Max. temperature of the return water sensor during disinfection (if a disinfection was completed that day).

-TRMIN: Min. temperature of the return water sensor duriong disinfection (if a disinfection was completed that day). It is calculated from the time when the return water sensor measured a value greater than SET3, beginning from the time when the disinfection starts being effective.

-ALARMS AL1, AL2, AL3, AL4, AL5, AL6, AL7 if they were activated on the day in question.

-24 hourly average values of the mixed outlet water temperature.

-24 hourly average values of the return water temperature. If no disinfection was completed on that day, then the related ﬁelds will contain a default value. If there have been any faults in one or both sensors, the hourly average data will be represented by dashes. If there are any gaps or unavailable data due to a change of date, time, etc., the cells will contain a default value and will be represented on the display by dashes.

Keyboard Lock (Access PIN code)

Menu navigation can be prevented by enabling the keypad lock function. The keypad is then unlocked by entering a PIN code. If the lock function is enabled, the keypad is locked automatically after a timeout of 10 minutes starting from the last button press. When the

keypad lock function is active, a padlock symbol appears on the LCD working screen (on the right).

Also, if the lock function is active and a button is pressed while the working screen is displayed, the PIN code input screen appears: The code is entered by selecting the ﬁrst digit using the “UP” and “DOWN” buttons, then conﬁrming by pressing OK. The second digit is entered in the same way, etc.

Tuesday 12/ 06/ 2016

TM127OF TR120OF ADJUSTMENT

When the last digit is conﬁrmed, if the code is correct, the user can access the menus; if the code is incorrect, the PIN entry screen appears again. If the timeout elapses, the display shows the working screen again.

If the PIN code is lost or misplaced, the lock function can be overridden (the PIN code is forced to 0000) by pressing a button on the back of the panel (for 5 sec), or by sending a special command through the RS485 interface.

PIN 0000

CONFIRM NO

PIN 2600

CONFIRM NO

Page 23

Deleting the Log

HISTORIC 06/ 04/ 2005

t DIS 060’ PGRM 1A

MAX 130° TR MIN 120 °

T ALARM -- -4 5-7-

The log can be completely erased from the non-volatile memory, using this procdure: Select the “temperat.history” menu item and press the OK button. The display shows the data from the ﬁrst log record available. Now press and hold the Shock button for at least 1 second. The display shows a blank screen, which is then gradually ﬁlled, indicating that the delete operation is in progress; the LCD display then shows the menu selection screen (higher level), and the log has been completely erased. If you now go into the log submenu, the only record available will be the one for the present day; note that the temperatures for all hours previous to the present one have also been deleted.

IMPORTANT: once initiated, the delete operation cannot be cancelled.

Battery

The controller has an integrated rechargeable battery (three 140 mAh cells), used to keep the internal clock running and maintain the selected settings even if there is a power failure. While in operation, the battery level of charge is checked periodically (about avery 24 h ours), and the recharge function is activated if neeeded. When the battery recharge function is active, the “Btr” icon appears in the working window (in the adjustment mode).

H 001 002 003 004 TM --- --- --- ---

--- --- --- ---

H 007 008 009 010

120 120 120 122

T TR 116 116 116 116

Tuesday 12/ 06/ 2016 Tuesday 12/ 06/ 2016

127OF TR120OF

TM127OF TR120OF ADJUSTMENT RUNNING

T BATTERY ALARM

Battery charging Battery fault

If the parameter readings are not within the speciﬁed range, the battery is damaged and must be replaced. If a battery fault is detected, the corresponding alarm appears (see the Alarms section): In principle, a battery fault should not affect any of the controller functions, unless there is also a power supply failure.

Battery replacment

When necessary, replace the battery by removing the depleted battery from its seat and inserting the new battery per the correct polarity placement, shown in the ﬁgure.

–

Page 24

L e ve l 1 L e ve l 2 L e ve l 3 B u tt on fu nc t io ns

Menu structure table

L A NG U A G E S E L L A NG U A G E S E L

DA T E /T IM E D AT E /T I ME

S E T T I N G S E T T I N G

T H E R M AL S H O C K T H E R M AL S H O C K

I - E - F - D - E S - P - NL - UP D OWN + OK

Conrm the language when turning on the controller. If the language is not selected after 1 minute, the menu goes directly to the date and time selection step. Use the “setting” menu to select language any time.

S L - H R - S R - RO

DAT E 01 -0 1-2 00 5 S et : da y/m ont h/y ea r UP D OWN + OK T IM E 00: 00 S e t: ti me UP D OWN + OK T IM E A DJ US T M EN T USA USA - CUS. - NO - EUR UP D OWN + OK

B us ID 001 f rom 0 to 25 5 U P DO WN + O K

S E T M AX 50 °C to 9 0° C UP D OWN + OK

S E T1 2 0 °C t o 85 °C U P DO WN + O K

S E T2 40 °C to 85 °C UP DO WN + O K

S E T3 UP D OWN + OK R ec pr obe YES N O - YE S UP D OWN + OK P R GM 2 0 - 1A - 1 B - 2 UP D OWN + OK

P rog .da y T ime ON 02: 00 S e t tim e UP DO WN + OK T ime OF F 0 3:00 S e t tim e UP DO WN + O K tW AIT 00 2’ 1 t o 2 5 5 min ute s U P DO WN + O K tM IN 030‘ 0 to 25 4 mi nut es UP DO WN + O K tF LU X 000 0‘ fr om 0 to 2 55 0 s ec on ds UP DO WN + O K tP L AY 005 ‘ f rom 1 to 25 5 s ec on ds U P DO WN + O K tM OT OR 1 00‘ 8 t o 32 0 s ec ond s UP DO WN + O K

AN TI C LO G

S E TS H UP D OWN + OK tS H 005’ f rom 1 to 43 20 min ute s UP D OWN + OK C OU NT DO WN 00 1’ 0 t o 99 9 mi nut es UP DOW N + O K AC T IVAT E co unt dow n NO NO - YE S UP DO WN + OK

149°F 113°F 140°F

135°F

_ _ _ _ _ _ _

ON ON - OF F (se e ins truc t. pa ge 14) U P DO WN + O K

140°F

122°F to 194°F /

68°F to 185°F /

104°F to 185°F /

S el ec t day(s) 1 2 3 4 5 6 7 OK

85°F to 185°F /

40 °C to 85 °C

30 °C to 85 °C

HISTORIC . V I E W T E MP E R A T UR E

T E M P E R AT U R E

MM/D D / YY UP-DOWN

K E Y P A D L O C K K E Y P A D L OC K

P IN 0 000 S el ec t c ode U P DO WN + O K E NA BL E NO NO - Y E S UP DO WN + O K

L OG MM/D D / YY (Example) tD IS 06 0’ P R GM 2

T R M AX

136°F 120°F

T R M IN AL AR M 123 4567

h 0 1

02 03 02 4

TA 105 110 95 115 T R 100 105 90 110

UP D OWN + OK

Page 25

Operability after alarm (page 1)

Type of alar m P rog ram In dic ation by ala rm L ED I ndic ation by LE D d ispla y Di spla y o n L CD R eco rding in lo g

AL 1: f low probe fau lty

R eturn pro be f ault

AL 2: r eturn pro be fau lt

Dis infec tion not co mplete d

AL 3: d isin fec tion not com plete d

0 1 A 1B 2 Ge neric alarm L ED comes

0 1 A The alarm L ED remains Off

1B 2 G eneric alarm LED come s

0 The alarm LE D rema ins O ff

1A 1B 2 “G eneric ala rm” LE D c omes

On and S tatus O K LE D goe s Off.

and the “S tatus OK ” LE D remains On.

On and S tatus O K LE D goe s Off.

and the “S tatus OK ” LE D remains On.

On and “S tatus O K” LE D goes Off.

Alarm shown on L ED disp lay. (“HI , “L O”, “SH ”, “OP” depe nding on c as e).

Re mains Off if prog ram 0, and “HI, “LO ”, “ SH”, “O P” disp layed (depend ing on ca se) if progra m is 1A.

Alarm shown on L ED disp lay. (“HI , “L O”, “SH ”, “OP” depe nding on c as e).

NON E NON E N ONE

NON E “Dis infection incomplete”

“Flow p robe fault” a larm disp layed on LC D.

NON E F ault is recorde d in the day

“R eturn probe fault” alarm on LC D ( sc reen a lte rnates with working s cree n).

alarm on LC D (sc reen alternates with the working sc reen).

YE S (AL1) S tored in the da y log.

log.

YE S (AL2) S tored in the da y log.

YE S (AL3) S tored in the da y log.

AL 4: t herma l sh ock in prog res s

AL 5: b lac kout (ma ins powe r failu re)

AL 6: a pplia nce res et

AL 7: b atter y dam age d

0 1 A 1B 2 Ge neric alarm c omes On

0 1 A 1B 2 The indicator L EDs rema in

0 1 A 1B 2 Ge neric alarm L ED comes

0 1 A 1B 2 “OK s tatus” L ED goes Off.

(but, if no other faults, the Status OK L ED also remains On).

Off. Only the generic alarm flashe s.

On and “O K status” LE D O ff.

“B TR FAIL ” LE D comes On. (The generic ala rm LE D is not lit).

NON E “Therma l shoc k in p rogress ”

Tempe rature indica tors a nd cloc k rema in Off. Tempe ratures are not ac quired.

Time display 00 : 00 blinking. Time on the LC D.

NON E “B attery damage d” a ppears

alarm on the L CD displa y.

LC D re mains Off. R ecord ing of log data is

Entering sc reen dis played Date and jus t set Disp laying of 0 1/01/2005 in the LC D date field.

on L CD displa y (a lte rnating with the working s cree n).

YE S (AL4) S tored in the da y log.

sus pended . YE S (AL5) When power is restored it is stored in the log.

YE S (AL6) S tored in the da y log.

YE S (AL7) S tored in the da y log.

Page 26

Operability after alarm (page 2)

R elay s tatus O pera ting sta tus

Re lay 2 clos ed ( if no ala rms, the relay is normally open) .

Re lay 2 open. The alarm re lay doe s not cha nge s tatus.

Re lay 2 clos ed. (if no alarms, the rela y is normally ope n).

Re lay 2 open. The alarm re lay doe s not cha nge s tatus.

Re lay 2 clos ed. (if no alarms, the rela y is normally ope n).

No relay action.

Re lay 2 open. The alarm re lay doe s not cha nge s tatus.

In s afe mode. Mixing valve clos es, i.e. only c old water enters.

Adjus tment or d isinfection or thermal shoc k is ca ncelled .

All a larm indica tions are cleare d when the ca use of the ala rm has bee n removed.

All functions are ensured . The return probe, if pres ent, is us ed a s a monitor only, since it does not gene rate an alarm if faulty.

No d isinfection, but adjus tment c ontinues and thermal shock is poss ible.

When the firs t button is pres sed , the relay re -opens; indica tion rema ins on the disp lay. In a ll ca ses , a ll alarm indications are c leared when the caus e of the alarm has been removed.

Disinfec tion failure doe s not g enerate any a larms.

When the firs t button is pres sed , the relay re -opens; indica tion rema ins on the disp lay. In a ll ca ses , a ll alarm indications are c leared when the caus e of the alarm has been removed, in this cas e when the next dis infection is succ es sfully c ompleted.

Note: if program 0 is se t, any unresolved alarm indication d ue to incomp lete disinfec tion is c leared .

Alarms gene rated. The thermal shoc k function is potentially da ngerous for users of the s ystem.

When the firs t button is pres sed , the relay re -opens; indica tion rema ins on the disp lay. In a ll ca ses , a ll alarm indications are c leared when the caus e of the alarm has been removed, in in this ca se when the s hock func tion has ended and the ap pliance begins adjus tment a gain.

If there is a mains power failure, the bac k-up ba tte ry kee ps the applianc e’s internal clock running. In this situation, a ll actuations are inhibite d (the relays ca nnot be opera ted), and therefore all the adjustment, d isinfection a nd thermal shoc k progra ms. In this status, the ap pliance goes into Low Power mode in orde r to ens ure maximum autonomy. The RS 485 inte rface is not available .

When power is res programs ; there are no ala rm indica tions. However, if the mains p ower failure lasts long enough for the ba tte ry to bec ome d ischa rged, there is a genera l rese t when power is restored .

The printed c ircuit board has a button for hardwa re res et of the applianc e. This b utton ca nnot be op erated from the front panel, but only by opening the door of the a pplianc e and ac ces sing the printed c ircuit boa rd. If the applianc e is res et ac cidentally, or intentionally by press ing the s pec ial hidde n button, or by interference (lightning, e tc.), the correc t time and date settings are lost. Se ttings

made by the user are also lost, a nd the fa ctory values a re reloa ded for all pa rameters and settings. Therefore, until the c orrect d ate and time are re-entered : Applianc e re mains active in adjustment mode . Disinfec tion is inhibited. Thermal shoc k progra m is inhibite d (b ut thermal shoc k c an s till be force d manua lly or remotely).

When the c urrent da te and time have b een s et (manua lly or remotely), the d ev normal ope ration. All a larm indic ations a re c leared.

While in operation, the level of c harge in the b attery is chec ked periodica lly (ab out eve ry 24 h), and the recha rge func tion is ac tivated if nece ss ary. If the pa rameter re adings are not within the s pec ified rang e, it me ans the battery is da maged and must be replac ed.

However, the a ppliance continues performing the s pec ified progra ms, sinc e a battery fault d oes not affect a ny of the applianc e functions

(unless there is a blac kout).

NOT E: for the b attery replac ement opera tion refer to the proc edure desc ribed on pag e 20 .

tored, the blackout a larm (A L5) is s tored in the log , and the a ppliance res umes op eration as de fined in the

ice comes out of the a larm c ondition and re sumes

Page 27

MODBUS Registers LEGIOMIX

0x03 0x06

1 0001 BUS address 1…247 x

2 0002 T mix (°C) x

4 0004 T mix (°F) x

1= regulation

3= ushing

4= thermal shock

x x

2= Program 1B

3= Program 2

x x

9 0009 MONTH 1…12 x x

10 000A YEAR 2017… x x

x x

13 000D LANGUAGE 0= IT x x

1= EN

2= FR

4= ES

7= SL

8= HR

9= SR

10= RO

x x

18 0012 TIME wait (time read ing recirc. Temp.) 1…255 (min) x x

19 0013 TIME min (MINIMUM DISINFECTION TIME) 0…254 (min) x x

20 0014 TIME ux (after ending the disinfection) 0…2550 (sec) x x

21 0015 TIME shock (time of duration shock) 1…4320 (min) x x

22 0016 SET REG - mixing regulation set temperature 20…85 (°C) x x

x x

26 001A SET Tmax - Maximum limit of range set temperature 50…90 (°C) x x

27 001B SET REG - mixing regulation set temperature 68…185 (°F) x x

28 001C SET DIS - disinfection set temperature 104…185 (°F) x x

29 001D SET REC - recirculation set temperature 104…185 (°F) x x

32 0020 Daily disinfection 0= Monday x x

2= Wednesday

3= Thursday

4= Friday

6= Sunday

H0002995

www.cale.com

RS485/MODBUS-RTU

VALUEREG (hex) DESCRIPTIONREG

0 0000 Product type Code to dene the product 6001

3 0003 T rec (°C)

5 0005 T rec (°F) x 6 0006 STATUS 0= - x

2= disinfection

7 0007 PROGRAM 0= Program 0

8 0008 DAY 1…31

11 000B HOUR 0…23 12 000C MINUTE 0…59 x x

14 000E TIME ON - h (Disinfection start hour) 0…23 15 000F TIME ON - min (Disinfection start minute) 0…59 16 0010 TIME OFF - h (Disinfection stop hour) 0…23 x x 17 0011 TIME OFF - min (Disinfection stop minute) 0…59

23 0017 SET DIS - disinfection set temperature 40…85 (°C) x x 24 0018 SET REC - recirculation set temperature 40…85 (°C) x x 25 0019 SET SHOCK - shock set temperature 30…85 (°C)

5= alarm

1= Program 1A

3= DE

5= P 6= NL

BMS

FUNCTION

30 001E SET SHOCK - shock set temperature 86…185 (°F) x x 31 001F SET Tmax - Maximum limit of range set temperature 122…194 (°F) x x

1= Tuesday

5= Saturday

Page 28

0x03 0x06

4= Friday

5= Saturday

6= Sunday

33 0021 Active functions b0: Presence of recirc. probe x x

b1: Anticlog

b2:0 b3:0 = Legal hour OFF b2:1 b3:0 = Legal hour EU b2:0 b3:1 = Legal hour US b2:1 b3:1 = Legal hour CUST

b5: LED display enable

34 0022 Forced activities 0= Shock activation x

1= Pin-code reset

2= Disinfection reset

3= Alarm reset

36 0024 TIME play - delay of time of actuator 1…255 (sec) x x

37 0025 START Sunday legal hour -3…3 x x

38 0026 START Month legal hour 1…12 x x

x x

40 0028 END Month legal hour 1…12

x x

4, month = 4 rejected if day = 31).

b4: Internatiol System of Unit

VALUEREG (hex) DESCRIPTIONREG

FUNCTION

35 0023 TIME motor - from close to full open 8…320 (sec) x x

39 0027 END Sunday legal hour -3…3

MODBUS functions:

Function 0x03 - Read Holding Registers

Used to read one or more parameters (the size of every parameter is 16 bit) The frame has the following structure:

dev. Addr. func start addr H start addr L N.regs H N.regs L CRC16H CRC16L HH 03 HH HH 00 HH HH HH dev. Addr. – Address of the device on the RS485 net (1-247)

Func – Function code = 3 start addr H - MSByte of the address of the parameter: start addr L - LSByte of the address of the parameter N.regs H - MSByte of the number of registers to read (always 0) N.regs L - LSByte of the number of registers to read CRC16H - MSByte of CRC16 CRC16L - LSByte of

Function 0x06 - Write Single Register

Used to write a single parameter ( 16 bit ) The frame has the following structure:

dev. Addr. func Reg.addr H Reg.addr L Reg. val. H Reg. val. L CRC16H CRC16L HH 06 HH HH HH HH HH HH dev. Addr. - Address of the device on the RS485 net (1-247)

Func - Function code = 6 Reg. addr H - MSByte of the address of the parameter Reg addr L - LSByte of the address of the parameter Reg. val. H - MSByte of the value of the parameter Reg val. L - LSByte of the value of the parameter CRC16H - MSByte of CRC16 CRC16L - LSByte of CRC16

CRC16

4= Historical data reset

nt with the current state of the device (e.g. day = 31 rejected if month =

Page 29

Plumbing installation

∞

Before installing the LEGIOMIX electronic mixing valve, pipes must be ﬂushed to prevent impurities in the water from affecting performance. Always install strainers of appropriately sized capacity at the inlet from the water main supply. Calefﬁ LEGIOMIX electronic mixing valves must be installed as shown below, conforming to applicable codes, and installed either vertically or horizontally, but the actuator must never be oriented upside down.

System piping

Recirculation connections in hot water system should be located as near as possible to the ﬁxtures they serve.

Anti-scald mixing valves should be located at all points of use (i.e. sinks) to provide safe water temperature as speciﬁed in local codes or requirements.

All mixing valves should be identiﬁed and have their maximum discharge temperature measured and documented on regular basis.

Where a mixing valve is installed within the hot water supply; a) Precaution should be taken to prevent the buildup of high temperature water in piping during periods of low or no use. b) Check valves should be provided to prevent bypassing of hot and cold water through the mixing valve.

The mixing valve body indicates with arrows, hot water inlet- red, cold water inlet - blue.

∞

Check valve

In systems with inlet pressure ﬂuctuations, check valves should be installed to prevent backﬂows, as is shown in the application diagrams. Check valves, code NA10366 (for 1” and 1¼” LEGIOMIX) and NA10367 (for 1½” and 2” LEGIOMIX) may be used.

Commissioning

Due to the special purpose for electronic mixing valves, commissioning in accordance with current regulations and by qualiﬁed personnel using suitable instruments is required. Check that the hot and cold water supply pressures are within operating limits of the mixing valve, see technical speciﬁcations. Check the temperature of the hot water coming from storage, greater than or equal to 140°F (60°C). Record all parameters settings and measurements taken in the installation log book.

Page 30

TUESDAY

03/ 02/ 2006 TUESDAY 03/ 02/ 2006 TUESDAY 03/ 02/ 2006

Maintenance

During service, regularly monitor the performance of the LEGIOMIX electronic mixing valve since any loss of performance may indicate maintenance is needed for the valve or the system. If the temperature of the mixed water is found the have changed signiﬁcantly compared to previous recordings, refer to installation and commissioning sections. The following check points are recommended periodically, at least every 12 months or more frequently, to ensure that the valve continues to deliver optimum levels of performance:

1) Check and clean the ﬁlters installed in the system.

2) Check that any check valve installed at the inlet of the LEGIOMIX electronic mixing valve is functioning correctly, and there are no leaks caused by dirt.

3) The internal components of the valve can be descaled by immersing in a suitable descaling ﬂuid.

4) Follow commissioning procedure again after maintainable components have been checked.

5) Record all operations conducted on system log book.

Alarm management

To make it easier to resolve any functional faults that occur after installation and commissioning, the controller is conﬁgured so that faults are indicated by special alarms and the appropriate action is taken. The cause of the alarm is shown on the LCD display. If the alarm does not inhibit all the functions, the alarm screen will alternate with controller status screen.

Alarm description

Alarm indicator Description

AL1 Mixed outlet water

AL2 Return water temperature

AL3 Disinfection failed

AL4 Thermal shock in progress

AL5 Main power failure

AL6 Controller reset

AL7 Battery default

MIXING PROBE

ALARM

RECIRCULATION

PROBE ALARM

ALARM

DISINFECTION INCOMPLETE

TUESDA Y 03/ 02/ 2006

BATTERY PROBE

ALARM

Depending on the alarm type, certain actions occur, relay statuses modiﬁed and information shown on

temperature sensor fault

sensor fault

the LED display, LCD display and LEDs on the front panel.

Page 31

Application diagrams

Non-return valve

Ball valve

Temperature gauge

preventer

Pump

Expansion vessel

Thermostat

Safety relief valve

Strainer

Clock

Recirculation connected to tank

Recirculation not connected to tank

8 0 6

°C

8 60

°C

0 2

Page 32

The following information is provided in accordance with the Electronic Code of Federal Regulations (FCC) PART 15 — RADIO FREQUENCY DEVICES §15.105.

§15.105 Information to the user.

(a) For a Class A digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual:

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

(b) For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual:

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment o󰀨 and on, the user

is encouraged to try to correct the interference by one or more of the following measures:

—Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver.

—Connect the equipment into an outlet on a circuit di󰀨erent from that to which the receiver

is connected. —Consult the dealer or an experienced radio/TV technician for help.

THE LEGIOMIX 6000 SERIES POINT-OF-DISTRIBUTION (ASSE 1017) ELECTRONIC MIXING VALVE IS INTENDED TO BE BUT ONE COMPONENT IN AN OVERALL RISK MANAGEMENT PLAN AS DESCRIBED IN ANSI/ASHRAE STANDARD 188 “LEGIONELLOSIS: RISK MANAGEMENT FOR BUILDING WATER SYSTEMS”. WHEN INSTALLED AND USED AS DESIGNED AND INTENDED, THE LEGIOMIX CAN HELP REDUCE BACTERIA IN DOMESTIC HOT WATER RECIRCULATION SYSTEMS, HOWEVER DUE TO SYSTEM-DEPENDENT VARIABLES, 100% ERADICATION CAN NOT BE GUARANTEED. CALEFFI IS NOT RESPONSIBLE FOR ANY DAMAGES, CONSEQUENTIAL OR OTHER, THAT MAY ARISE FROM LEGIONELLA ILLNESS WHEN USING THE LEGIOMIX ELECTRONIC MIXING VALVE.

Caleffi North America, Inc. 3883 West Milwaukee Road Milwaukee, WI 53208 T: 414.238.2360 F: 414.238.2366

8-15-2021