Vemer Mithos Color Wi-Fi User manual

Digital
Chronothermostat
Mithos Wi-Fi
User Manual

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Mithos Wi-fi Chronothermostat User Manual
■Dimensions Page 3
■Connection diagram Page 3
■Safety warnings Page 4
■Technical characteristics Page 4
■Control elements / display indications Page 6
■Installation Page 8
■Initial start-up of the Mithos Wi-Fi Page 9
The app Page 13
Off-line operation of Mithos Wi-Fi Page 21
■Clock setting Page 22
■Programs setting Page 24
■Temperatures setting Page 26
■Manual operation Page 27
■Summer / winter operation Page 28
■Programmable thermostat deactivation Page 29
■Timings Page 29
■Advanced programming Page 31
■Advanced functions Page 37
■Regulation type Page 39
■Reference standards Page 40
■Winter programs Page 41
■Summer programs Page 42
Index

Mithos Wi-Fi Digital Programmable thermostat
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Mithos Wi-fi Chronothermostat User Manual
• Comfort and control of
consumptions are ensured both in
winter and in summer (heating/air
conditioning)
• Power supply: 230 Vac
(with backup battery)
• Wall-mounting or coverage of the
503 box (3 modules)
• Remote control through app for iOS
systems and Android or from PC
• All programming occurs remotely
through app or via internet with pc/
mac
• Weekly programming with
7 different customizable programs
and 3 temperature levels
Profile of a program

DIMENSIONS
CONNECTION DIAGRAM
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Mithos Wi-fi Chronothermostat User Manual
1
2
3
4
5
6
7
230V ~
Input for
COM
NO
NC
N
L
X.Temp or DIG
T3
T2
T1
132 36
95
T3
T2
T1
132 36
95

SAFETY WARNINGS
TECHNICAL CHARACTERISTICS
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Mithos Wi-fi Chronothermostat User Manual
■During installation and operation of the product, it is necessary to comply
with the following instructions:
1) The instrument must be installed by a skilled person, in strict compliance with
the connection diagrams.
2) Do not power on or connect the instrument if any part of it is damaged.
3) After installation, inaccessibility to the connection terminals without
appropriate tools must be guaranteed.
4) The instrument must be installed and activated in compliance with current
electric systems standards.
5) Before accessing the connection terminals, verify that the leads are not live.
6) In the electrical system of the building where the instrument must be
installed, a protection device from the overcurrents must be present
• Power supply: 230 V AC ( -15% ÷+10%) 50/60Hz
• Charge reserve: 1 hour about thanks to the backup battery
• Backup battery: rechargeable AA NiMH type, capacity 2000 mAh or higher
 Use rechargeable NiMH batteries only
• Auxiliary configurable input to whom to connect alternatively:
– a not powered contact (DIG)
– an external temperature probe X.Temp
■The Mithos Wi-Fi is an electronic weekly programmable thermostat with wi-fi
connection to manage your heating/cooling system.
The integrated wi-fi module allows to connect the Mithos Wi-Fi to home router and so
to internet. Once connected, it’s possible to program the Mithos Wi-Fi also when you
are out of your home through app (available for iOS-Apple systems and Android) or via
internet from pc/mac.
Code Model Description
VE612800 Mithos Wi-Fi Bianco White wi-fi weekly programmable thermostat
VE705000 Mithos Wi-Fi Nero Black wi-fi weekly programmable thermostat
VE323200 FR.Mithos Silver painted front panel

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Mithos Wi-fi Chronothermostat User Manual
• Output:
– bistable relay with change-over contact 8A / 250 V AC
• Type of action: 1B
• 5 temperature settings:
- T3, T2,T1 for automatic regulation
- T0 antifreeze temperature settable in advanced programming
- T temperature in manual operation
• Temperature regulation:
- ON/OFF with differential settable between 0.1°C and 1°C
- PROPORTIONAL with settable proportional band and regulation period
• Weekly programming
• Daily resolution: 1h
• Activation delay settable between 15, 30 or 45 minutes (independent for each hour)
• Measured temperature scale:
– 0°C ÷ +50°C (internal probe)
– -40°C ÷ +60°C (external probe)
• Measured and displayed temperature resolution: 0.1°C
• Temperature regulation range: 2.0°C ÷ +35°C
• Measurement update: every 20 seconds
• Measurement precision: ± 0.5°C
• Heating (winter) or cooling (summer) operation
• Automatic change CET / DST
• Password protected keypad lock for installation in public places
• Wall mounting (or on 503 type box)
• Terminal strips:
- Output: 3 poles 1.5 mm
2
for bistable relay
- Input: 2 poles 1.5 mm
2
for external probe or digital input
2 poles 1.5 mm
2
for power supply connection
• Operating temperature: 0 °C ÷ +50 °C
• Operating humidity: 20% ÷ 90% noncondensing
• Storage temperature -10°C ÷ +65°C
• Degree of protection: IPXXD
The preset temperature values (expressed in °C) are the following:
funct. winter funct. summer
T1 5.0 OFF
T2 15.0 23.0
T3 18.0 25.0
TMANUAL 20.0 24.0
Regulation of temperature levels is subjected to the following condition: T1 ≤ T2 ≤T3.
In summer mode, T1 cannot be set and corresponds to the air conditioning OFF.

CONTROL ELEMENTS / DISPLAY INDICATIONS
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Mithos Wi-fi Chronothermostat User Manual
➔
5
➔
10
➔
2
➔
1
➔
3
➔
4
➔
6
➔
9
➔
11
➔
12
➔
13
➔
8
➔
7
■Control elements
1) “ ” Key: manual operation
2) “ ” Key: increases the selected field
or displays the daily maximum
temperature
3) “ ” Key: decreases the selected field
or displays the daily minimum
temperature
4) “ ” Key: confirms the set data
5) “ ” Key: activation and deactivation of the programmable thermostat
6) “ ” Key: selects temperature T3
7) “ ” Key: selects temperature T2
8) “ ” Key: selects temperature T1
9) “ ” Key: allows to set a timer or an activation delay
10) “ ” Key:programs setting or advanced programming
11) “ ” Key: clock setting
12) “ ” Key: winter operation (preset) or summer operation (the key is reachable
only with a point)
13) “ ” Key: instrument reset (according to the type of reset it’s followed by the
press of another key)
(the key is reachable only with a point)

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Mithos Wi-fi Chronothermostat User Manual
■Display indications
14) “Day” Field
15) “External temperature” Field
16) “Environment temperature” Field
17) “Set program” Field
18) “Manual operation activation” Field
19) “Timings” Field
20) “Air conditioning activation” Field
21) “Heating activation” Field
22) “Clock” Field
23) “Data in progress updatel”
Field
24) “Connection to internet on” Field
25) “Unit of measurement”
(°C only) Field
26) “Off” Field
14 24 19
16
26
22
21
20 18
15
25
17
23

INSTALLATION
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Mithos Wi-fi Chronothermostat User Manual
• Extract the instrument from the box
and fasten it to wall using the provided
screws. Place it at about 150 cm from the
floor at a point of the room that reflects
the average conditions of the whole
environment, or away from doors or
windows, from heat sources away from
direct radiation.
• Insert the rechargeable battery and make
the connections respecting the diagram
on page 3.
• Power the instrument.