Electric Under Floor Heating-Thermostat Manual
ATTENTION!
Read the present manual carefully before using the device.
NOTE!
Find connection diagram and device installation directions in the Installation manual.
We recommend you to use the services of professional people for thermostat and electric under floor heating system installation. Ask a qualified electrician to perform all connections and power net working of the device.
Manufacturer's guarantee does not cover device's malfunctions caused by mechanical damage, improper installation, or exploitation for purposes or under conditions not provided by User and Installation Manual.
Introduction
Congratulations! You have purchased a new I-WARM heat management system.
The I-WARM 730 thermostat series have inherent features that are highly reliable, easy adjustment, simple display and modern design.
I-WARM 730 will make the heating in your home more efficient, most comfortable, easy and convenient at use.
Functional description
I-WARM 730 thermostat is designed to manage "Warmfloor" (heating mats or cable sections) electrical under floor heating systems for two separate areas. The device automatically maintains the comfortable temperature set by you, using the readings of floor temperature sensors (included); these sensors are located in two various heating zones (in two areas).
Floor temperature (actual and set by you) is indicated on the display.
I-WARM 730 performs self diagnosis. In the event floor temperature sensor has a malfunction, it will display warning messages. In this case the device may work in so called "service mode" of heat management.
Controls and display (fig.1)
1. Symbol for heating system switched on mode.
2. Chosen heating zone No. display.
3. Current floor temperature in the chosen zone (°С).
4. Set temperature (°С) in the chosen zone.
5. "+" key for temperature increase.
6. "–" key for temperature decrease.
7. Key to shift the heating zones.
When the electric under floor heating is on, a symbol for heating system switched on mode appears on the screen. When the heating is switched off the symbol disappears.
Capital figures show the actual current floor temperature of the chosen zone (position 3); figures in top right show the set floor temperature in this zone (position 4).
The set temperature may be changed by pressing "+" key to increase (position 5), and "–" key for decrease (position 6).
Pressing the ZONE/A key (position 7) once will shift the heating zone in order to manage temperature settings in each zone.
Managing and operating
Switching thermostat on/off (Automatic Mode)
To switch the thermostat on/off you should press and hold the central key (ZONE/
) for not less than 3 sec. The device goes into the main display mode (fig. 2).
Blocking and Unblocking
The device is equipped with key blocking to protect it from children and accidental pressing. The blocking switches on automatically in 40 sec. after the last pressing of any key; the display highlight dims.
In order to Unblock the device, you should press and hold simultaneously "+" and "–" keys for not less than 3 sec. After it the blocking mode is switched off, and the display lights up.
Alternating the heating zones (Fig. 3)
In order to alternate between the heating zones (heated areas) you should press the central key (ZONE/
). At this time the zone symbol will change (fig. 3). Capital figures show the actual current floor temperature in the chosen zone
(area), small figures at top right show the temperature set in this zone.
Temperature adjustment
Choose area by pressing ZONE/A. Enter the required temperature using "+"/"–" keys.
Now the system will maintain the set temperature automatically by heating up the floor and switching off when the set temperature is reached. Thus energy saving system usage is performed.
Switching one of the electric under floor heating zones off
In order to switch off the heating in one of the areas you should set minimum temperature in this area, i.e. +5 ОС.
Self diagnostics
The thermostat controls constantly the working capacity of the temperature sensors. In case any of them is out of order (break or short circuit of leads takes place), the thermostat switches off heating of this zone and displays warning messages (fig. 4). You should apply to the nearest service center for repair or changing the temperature sensor (the addresses are given in the heating system installation manual).
Heating management mode without floor temperature sensor ("service mode") (Fig. 5)
In case of floor temperature sensor failure in one of the zones the thermostat switches the heating off. If it is still required to heat the areas (e.g. it is the main source of heating in winter period), it is possible to manage the heating without a sensor until the working capacity of the sensor is restored (so called "service mode"). In order to switch to this mode you should press and hold "+" and "–" keys for not less than 15 sec. in emergency indication mode.
At this time a symbol of manual heating management mode appears, capital figures on the display show what percentage of its installed power the system outputs in average.
This percentage may be adjusted by pressing "+" and "–" keys; the changes are shown on the display.
In this mode the power is managed the following way: a unit time is divided by the time the heating is in on and off modes. The unit time is one hour. Accordingly, if the 50% power is set, the heating will be switched for 30 min., and then before the period ends it will be switched off for 30 min. if 10% power is set, the heating will be on for 6 min. and off for 54 min.
ATTENTION!
To avoid overheating of the electric under floor heating cable and therefore possible heater damage, we do not recommend to use service mode for more than 7 days.
Each time it is switched on the device will remind you about the failure. You should apply to the service center as soon as possible to repair or change the temperature sensor.
Using various heating management modes simultaneously
I-WARM 730 allows to use both automatic and service modes simultaneously (one mode for each controlled area).
In this case the "service mode" zone will be displayed on the screen (fig. 5) even though two separate modes are running simultaneously. At the same time it will be possible to use automatic mode in the other zone (fig. 2).
Thermostat installation
The thermostat delivery set
1. I-WARM 730 thermostat . . . . . . . . . . . . . . . . . 1 pc.
2. Floor mounting temperature sensor
with connection cable 2 m long . . . . . . . . . . . . . 2 pcs.
3. External terminal block for earthing
line connection . . . . . . . . . . . . . . . . . . . . . . . . . . 1 pc.
4. User and installation manual . . . . . . . . . . . . . . . 1 pc.
5. Packing box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 pc.
Installation and connection
IMPORTANT!
Switch off the wiring before installing a thermostat whether checking or replacing. A qualified electrician must perform electrical connections and device connection to the heater.
The manufacturer's guarantee doesn't cover malfunction due to incorrect connections/installation of the unit.
Please study the present manual carefully before commencement of all electrical connections.
Tools and materials required for thermostat installation:
1. Corrugated plastic tube 12–16 mm in diameter; the length depends on distance between the thermostat and the both sensors of temperature
2. Double size junction box for wall mounting units
3. Flat head screwdriver
4. Cross point screwdriver
INSTALLATION OF FLOOR MOUNTING TEMPERATURE SENSORS (Fig. 6)
Installation of floor temperature sensors is performed when heating mat or section is being installed. In each area its own temperature sensor is installed. The sensors installation is performed via a junction box. The sensors are placed in corrugated plastic tube. The end face of the tube is to be sealed to prevent penetration of tile fixing mixture or cement mortar in the course of heated floor arrangement. The end of the corrugated tube with a sensor inside is placed approx.
50 cm away from the wall, at the height of the electric under floor heating cable centrally located between loops. If required the plastic tube can be placed within a channel in the floor to minimize overall height. It is recommended that the temperature sensor is placed through the corrugated tube in the event access is required to the floor sensor. Should the floor sensor cable require extending this is possible up to a maximum of 25 metres.
INSTALLATION OF THERMOSTAT
Preparing electrical connectors
Locate position of your junction box then terminate cold tails for heaters and cable connections for floor sensors.
Perform all works regarding thermostat connection only when the power supply is switched off. All the cables are to be connected to the device terminal contacts with screw fastening (See figure 7 for wiring connections).
To install a thermostat you should take off the front cover of the device. To do this, slightly push the locks one by one (which are situated at the top and at the bottom of the front cover) using thin screwdriver. At this time pull the front cover out (Fig. 8). Take off the front cover and the frame (Fig. 9).
Place the device into the back box and fix it by means of at least two screws, which we recommend you to place along the thermostat horizontal level (Fig. 9)
CAUTION — Do not at any time place pressure on the LED
Screen during installation!
Assemble the thermostat acting in reverse order. Place
the frame carefully; be sure, that it fits tightly to the device's
case. Then place the front cover carefully and push it till both
locks fix it. Be sure that the front cover is fixed properly.
Technical specification
Power supply voltage . . . . . . . . . . . . . . . . . . . . . 240 VAC
Maximum load current . . . . . . . . . . . . . . . . . . . . . . . 2х8 А
Watt consumption . . . . . . . . . . . . . . . . . . . . . . . 1350 mW
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 gr
Dimensions . . . . . . . . . . . . . . . . . . . . . . . 116х82х54 mm
Data stored (with battery back up) . . . . . . . . . 12 months
Protection index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP20
Remote floor mounting
temperature sensor . . . . . . . . . . . . . . . . . NTC 6,8 kOhm
Length of sensor connection cable . . . . . . . . . . . . . . 2 m
Maintaining temperature range from . . . . . +5 to +35 ОС
Factory preset . . . . . . . . . . . . . . . . . . . . . . . . . . . . +25 ОС