MCZ THEA HYDRO 16 S1 User manual

INSTALLATION GUIDE GB
Instructions in English
PELLET STOVE
THEA HYDRO 16 S1
THEA HYDRO 23 S1
PART 2 - OPERATION AND CLEANING

II
TABLE OF CONTENTS
TABLE OF CONTENTS .................................................................................................. II
13 WARNINGS BEFORE IGNITION .................................................................................3
14CONTROL PANEL ....................................................................................................4
15MENU ITEMS AND OPERATION ................................................................................5
15MENU ITEMS AND OPERATION ................................................................................6
16  SAFETY DEVICES AND ALARMS.............................................................................21
17RECOMMENDATIONS FOR SAFE USE.......................................................................25
18CLEANING AND MAINTENANCE..............................................................................26
19TROUBLESHOOTING .............................................................................................32
20CIRCUIT BOARD ...................................................................................................35

3
13 WARNINGS BEFORE IGNITION
Technical Dept. - All rights reserved - Reproduction prohibited
GENERAL WARNINGS
Remove any objects that may burn from the product brazier and from the glass (manual, various adhesive labels or any polystyrene).
Check that the brazier is positioned correctly and rests properly on the base.
The rst start-up may not be successful as the feed screw is empty and does not always manage to load the brazier
with the required amount of pellets in time to light the ame.
CANCEL THE FAILED IGNITION ALARM. REMOVE THE PELLETS LEFT IN THE BRAZIER AND REPEAT IGNITION.
If after repeated attempts, the ame fails to ignite, despite a regular ow of pellets in the brazier, which must rest snugly against the
slots and be clean without any ash incrustations. If no anomaly is found during this inspection, there may be a problem with the
product components or installation may not be correct.
REMOVE THE PELLETS FROM THE BRAZIER AND CONTACT AN AUTHORISED TECHNICIAN.
Do not touch the stove during the rst start-up, as it is during this phase that the paint sets. If you touch the paint,
you may expose the steel surface.
It is good practice to ensure eective ventilation in the room during the initial start-up, as the stove will emit some
smoke and smell of paint.
If necessary, touch up the paint with the spray can of the specic colour.
Do not stand close to the stove and, as mentioned, air out the room. The smoke and smell of paint will disappear after about an hour of
operation, however, they are not harmful in any case.
The product will be subject to expansion and contraction during the start-up and cooling stages, therefore slight
creaking noises may be heard. This is absolutely normal and must not be considered a defect as the structure is made
of laminated steel.
Upon rst ignition, for the rst pellet hopper, it is recommended to start the stove at maximum power so that the structure and the
smell of the paint settle more quickly.
It is recommended to install the ceramic or serpentine stone cladding after the rst successful ignition.
DO NOT EXPECT HEATING EFFICIENCY IMMEDIATELY!!!

72 3 4
61 5
4
14-CONTROL PANEL
CONTROL PANEL DISPLAY
Menu options
KEY
1. Stove start-up/shutdown
2. Scrolling down through the programming menu.
3. Menu
4. Scrolling up the programming menu.
5. Decreases set temperature / programming functions.
6. Increases set temperature / programming functions.
7. Display.
MAIN MENU
Press key 3 (menu) to access it.The options accessed are:
• Date and Time
• Timer
• Sleep (only when stove is on)
• Settings
• Info
Date and time conguration
Proceed as follows to congure the date and time:
• Press the“menu”key.
• Select “Date and Time”.
• Press“menu”to conrm
• Scroll through with the arrow keys and select the variables to be edited one at a time: Day, Hour, Min, Num. day, Month, Year.
• Press“menu”to conrm.
• Use the + and - keys to edit.
• Finally, press“menu”to conrm and“esc”to exit.

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15-MENU ITEMS AND OPERATION
Technical Dept. - All rights reserved - Reproduction prohibited
PROGRAMMED MODE (TIMER) - Main menu
The current time and date must be congured to ensure correct operation of the timer.
There are six congurable TIMERS. For each one, the user can select a start-up and shutdown time and the days of the week when it is in
use.
When one or more programs are active, the status of the stove and the TIMER “n” alternate on the display, “n” is the number of timer
programs in use, separated by dashes
Example:
TIMER 1 Timer 1 program active.
TIMER 1-4 Timer 1 and 4 programs active.
TIMER 1-2-3-4-5-6 All timer programs active.
EXAMPLE OF PROGRAMMING
With the stove on or o:
• access the MENU,
• scroll to the TIMER item using the <> arrows,
• press the“Menu”key
• the system shows“P1”(Press the <> keys to move through the timers P2, P3, P4, P5, P6)
• Press the“Menu”key to activate“P1”
• press + - and select“ON”
• press the“Menu”key to conrm
At this point the start time is 00:00. Press the + - key to set the start time and press the“menu”key to conrm.
Next, the proposed shutdown time is 10 minutes later than the congured start time: press the + key and edit the shutdown time, and
press the“menu”key to conrm.
Next, you are asked to set the days of the week when the congured timer is to be enabled or disabled. Press the - or + keys to select the
day you want to activate the time. It will light up white, then conrm with the “menu”key. If no day of the week is selected for enabling
the timer, the timer program is no longer enabled on the status screen.
Next, program the other days or press“ESC”to exit. Repeat this procedure to program the other timers.
EXAMPLES OF PROGRAMMING:
P1 P2
on o day on o day
08:00 12:00 mon 11:00 14:00 mon
Stove on between 08:00 and 14:00
P1 P2
on o day on o day
08:00 11:00 mon 11:00 14:00 mon
Stove on between 08:00 and 14:00
P1 P2
on o day on o day
17:00 24:00 mon 00:00 06:00 tue
Stove on between 17:00 on Monday to 06:00 on Tuesday

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15-MENU ITEMS AND OPERATION
NOTES ON USE OF THE TIMER
• The timer always starts the boiler with the last temperature and ventilation settings (or with the default settings at 20°C and V3 if
they have never been altered).
• The start-up time goes from 00:00 to 23:50
• If the shutdown time has not yet been saved, the program proposes a start-up time at +10 minutes.
• A timer program turns o the stove at 24:00 on one day and another program starts it up at 00:00 on the next day: the stove remains
on.
• A program proposes a start-up and/or shutdown time that overlap the times of another program: if the stove is already on, the start
has no eect while OFF turns o the stove.
• When the stove is on and the timer is active, pressing the OFF key turns o the stove. The stove then restarts automatically at the
next time set on the timer.
• When the stove is o and the timer is active, pressing the ON key turns on the stove. The stove then stops automatically at the next
time of the timer.
SLEEP FUNCTION (main menu)
Sleep mode may only be activated when the stove is on and allows you to quickly set a time for the product to turn o.
To set the Sleep function, proceed as follows:
• Enter the MENU
• Scroll to the SLEEP item with the <> arrows
• Press Menu
• Set the turn-o time you want using the + and - keys.
The panel shows a default time of 10 minutes after the current time, which can be adjusted with key 4 up to the following day (i.e. the
turn-o can be delayed for a maximum of 23 hours and 50 minutes).
If the SLEEP function is active with the TIMER active, the former has priority, therefore the stove will not turn o at the time set in the timer
program but at the time set by the sleep function, even if it comes after the time set by the timer.
ADJUSTMENT MENU
To access the menu, proceed as follows:
• Press the + - keys
• Scroll with the <> arrows and select“Set Amb.T”or “Set Water T”
• Press“menu”to enter the option selected.
• Change by using the + - keys.
• Press“menu”to conrm and“esc”to exit.

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15-MENU ITEMS AND OPERATION
Technical Dept. - All rights reserved - Reproduction prohibited
SETTINGS MENU
The SETTINGS menu enables to congure the stove operating modes:
a. Language.
b. Cleaning (only displayed when stove is o).
c. Feed screw loading (shown only when stove is o).
d. Tones.
e. External thermostat (activation).
f. Auto Eco (activation).
g. EcoTurn-o T (default 10 minutes).
h. Pump onT (default 50°C).
i. Auxiliary boiler (default deactivated).
j. Pellet recipe.
k. Fumes rpm % ventilation.
l. Maximum power (1-5 - default 5).
m. Components test (only displayed when the stove is o)
n. “Chimney sweeper”function (can only be enabled when stove is on, to check emissions in eld).
o. System conguration (factory settings: system 02).
p. Season.
q. Technical menu.
NOTE: Some of the options listed above cannot be enabled in certain“system congurations”.
a - Language
Select the language as follows:
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Use the arrow keys to scroll through and select“language”.
• Press“menu”to conrm.
• Use the + - keys to select the required language (IT/EN/DE/FR/ES/NL/PL/DA)
• Press“menu”to conrm and“esc”to exit.
b - Cleaning
Proceed as follows to select “Cleaning”(only with stove o):
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Use the arrow keys to scroll through and select‘’Cleaning’’.
• Press“menu”to conrm.
• Use the + - keys to select“On”.
• Press“menu”to conrm and“esc”to exit.
c - Load feed screw
This is for lling the pellet loading system.This can be enabled only when the stove is o. A 180”countdown appears. The feed screw stops
automatically at the end of the countdown and the menu closes.
To select‘’Feed screw loading’’(only with stove o), proceed as follows:

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15-MENU ITEMS AND OPERATION
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Scroll with the arrows and select“Load feed screw”.
• Press“menu”to conrm.
• With the + - keys, select“Enable”.
• Press“menu”to conrm and“esc”to exit.
d - Tones
This function is disabled by default.To enable it proceed as follows:
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Use the arrow keys to scroll through and select‘’Tones’’.
• Press“menu”to conrm.
• Use the + - keys to select“On”.
e - External thermostat
EXTERNAL THERMOSTAT (not included with the stove, to be provided by the user)
The temperature of the stove can also be controlled by an external room thermostat. It must be positioned centrally in the room where
the stove is installed. It provides a closer match between the heating temperature required to the stove and the actual room temperature
it provides.
Connect the wires of the external thermostat to points 1-2 of the terminal block on the stove.
Once the thermostat has been connected it needs to be enabled.
To do this, proceed as follows:
• Press the“menu”key.
• Scroll with the arrows to“Settings”.
• Press“menu”to select.
• Now use the arrows to scroll to“External thermostat”.
• Press“menu”to select.
• Press the - + keys.
• Select “On”to activate the external thermostat.
• Press the“menu”key to conrm.
• Press the“esc”key to exit.
f - Auto-Eco activation
To select the Auto-Eco function, proceed as follows:
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Scroll by using the arrows and select“Auto-Eco”.
• Press“menu”to conrm.
• Use the + - keys to select“On”.
• Press“menu”to conrm and“esc”to exit.
g - Eco Stop T
To select the Eco stop t function, proceed as follows:

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15-MENU ITEMS AND OPERATION
Technical Dept. - All rights reserved - Reproduction prohibited
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Scroll with the arrows and select‘’Eco stop t.
• Press“menu”to conrm.
• Enter the minutes with the + - keys.
• Press“menu”to conrm and“esc”to exit.
AUTO ECO MODE
For activation of the“Auto Eco”mode and time adjustment, see paragraphs 8 f and 8 g respectively.
The option‘’ECO stop t”can be adjusted to ensure correct operation in the various environments in which the stove can be installed and to
avoid constant shut-downs and start-ups when the room temperature is subject to sudden change (drafts, poorly insulated rooms, etc.).
The ECO stop procedure is activated automatically when all the power recall devices included in the “system conguration”are satised:
room temperature probe/external thermostat (congurations 1-2-3), ow switch (conguration 2), thermostat/ntc (10 kΩß3435) puer
(conguration 4-5) or thermostat/ntc (10 kΩ ß3435) storage cylinder (conguration 2-3). If all the devices present are satised, the “ECO
stop T” time begins to decrease (10 minutes default, can be changed in the “Settings” menu). During this phase, the panel alternates
between displaying ON with a small ame and Crono (if active) - Eco active. The minutes counting down to the Eco Stop are shown at the
top of the display. The ame moves to P1 and remains there until the set“”ECO stopT”time reaches zero, and if the conditions are still met,
turns o the boiler. The ECO stop count is cancelled if one of the devices recalls power.
When the boiler begins to turn o, the panel displays: O - Eco Active - ashing small ame.
When the stove turns o, OFF-ECO appears on the display with the ame symbol o.
The following conditions have to be met simultaneously for the ECO to restart:
• Power recall
• 5 minutes have passed since shut-down.
• TH2O < TSetH2O.
• If the power is recalled by the domestic hot water (DHW), the 5’are ignored and the stove starts up as required.
NOTE: In conguration 4 - 5 the Auto Eco mode is enabled automatically. Also when in conguration 2 - 3, with the‘summer’function set,
it is enabled automatically. Where it is prescribed that it should be enabled, the mode cannot be disabled.
h - Pump on T
This option enables adjustment of the pump activation temperature.
Select the Pump On T function as follows:
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Scroll with the arrows and select“Pump on T”.
• Press“menu”to conrm.
• Use the + - keys to change the °C.
• Press‘’menu’’to conrm and‘’esc’’to exit
i - Auxiliary boiler
An additional module (optional) must be installed to allow the start-up of an auxiliary boiler when the main boiler is o or has been
stopped due to an alarm.The default settings have this function disabled.To enable the function, go to the settings menu.

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15-MENU ITEMS AND OPERATION
j - Pellet Recipe
This function is for adapting the stove to the type of pellet in use. As there are many types of pellets available on the market, operation
of the stove can vary considerably according to the quality of the fuel. When the pellets clog up the brazier due to excess loading of fuel
or when the ame is always high even at low power, or when the ame is low, it is possible to decrease/increase the amount of pellets
in the brazier:
The available values are:
-3 = A decrease of 30% on the factory setting.
-2 = A decrease of 20% on the factory setting.
-1 = A decrease of 10% on the factory setting.
0 = No changes.
1 = An increase of 5% on the factory setting.
2 = An increase of 10% on the factory setting.
3 = An increase of 15% on the factory setting.
Edit the recipe as follows:
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Scroll with the arrows and select“Pellet recipe’’.
• Press“menu”to conrm.
• Edit the % by using the + - keys.
• Press‘’menu’’to conrm and‘’esc’’to exit
k - Fumes rpm % ventilation
In the event the installation presents problems in extracting smoke (lack of draught or even pressure in the duct), it is possible to increase
the smoke and ash extraction speed. This change resolves all potential problems related to pellets clogged in the brazier and deposits
forming at the bottom of the brazier itself caused by poor quality fuel or fuel that produces a lot of ash. The values available range from
-30% to +50%, with increments of 10 percent at a time. Negative variation can be necessary if the ame is too low.
To alter this parameter, proceed as follows:
• Press the“menu”key.
• Use the arrow keys to scroll through and select“Settings”
• Press“menu”to conrm.
• Scroll with the arrows and select“Fume rpm Var.”.
• Press“menu”to conrm.
• Edit the % by using the + - keys.
• Press‘’menu’’to conrm and‘’esc’’to exit