First EMV100 800 Series Manual page 98

DTC 200
SENSORS INSTALLATION
T1 AND T3 SENSORS INSTALLATION IN TO SOLAR
COLLECTOR OR BOILER:
Use KF sensors with silicon cable insulation (RED
colour)!
Install it as immersion sensor in collecting pipe at the top
of the collectors or boiler in provided sleeve. Connect sensors
on the terminals 1 and 2. Use sensors KF with red silicon cable
and use cable type J-Y (St) 1X 2X0,6 for connection.
For cables longer than 15m we recommend over-voltage pro-
tection with VDR resistor. For over voltage protection is recom-
mended use of armoured cable and it must be earthed.
T-piece 1/2"
flow direction
pipe1/2"
T2 AND T4 SENSORS INSTALLATION IN DOMESTIC HOT
WATER TANK (DHWT):
Use BSF1 sensors with PVC cable insulation (GRAY
colour)!
Install T2 sensor to provided place in hot water tank or on hot
water tank wall under isolation as contact sensor in lower part of
exchanger. When sensor is mounted as contact one we recommend
to coat it with heat conducting paste or liquid metal. Use sensors
BSF1 with PVC cable.
In special purpose vertical or horizontal
tube (sensor should be protected against
accidental extraction).
WARNING!
At mounting protect sensors against ambient influence and
assure suitabile mechanical protection.
DTC 200/ (2 sensors)
1. Heating the domestic hot water from one heating source (solar
collectors, boilers, heat pump...) .
1.1 Basic
Differential thermostat controls the electric motor actuated ball
valve (EMV 110..) and the circulation pump.
The thermostat enables setting of two parameters:
1. Regulation of maximum temperature in hot water tank from
10° to 90°C.
This temperature is defined by T2 sensor witch is generally
mounted in upper third of heat exchanger.
2. Regulation of difference for exchanger from 0K to 15K.
With these regulation you define how much the value of the
source temperature (collector, boiler,...) should exceed the tem-
perature of water around the exchanger in hot water tank, that
the thermostat opens the valve and activates the pump.
The difference is set in relation to the volume of heat losses of
the system which depend on lengths of pipelines from source to
hot water tank and on pipeline insulation.
1.2 Operation
98
page
VDR resistor thermo-shrinkable
tubes
sensor kable
extension cable
On hot water tank with clip, wire and
spring strip (use paste for better heat
transmission).
DTC 200 works as single differential thermostat, which measures
the temperature of heating source (collectors, boiler, ...) and in
user (hot water tank).
Heating effect is provided, when heating source temperature is
higher than the temperature of the user (water in hot water tank).
Consequently minimum difference should be 3K-5K. Recom-
mendable minimal value is 5K.
When the temperature of the source exceeds the temperature
around the user for pre-set difference opens the electric motor
actuated ball valve and switches the pump.
The thermostat switches off the pump if pre-set temperature is
reached in hot water tank (adjustable from 10° to 90°C).
ELECTRIC CONNECTION
Before each intervention in the thermostat first discon-
nect the main power!
Grounding wires should be
connected to special ter-
minal pins situated on left
side of terminal strips.
The thermostat is
designed for fixed
installation. When
performing electric instal-
lation, an element should
be inserted which enables
at least 3 mm separation of
thermostat from the mains
(switch or socket). Prior
to each intervention in the
thermostat, first disconnect
it from the mains.
TERMINAL CONNECTION
1,2 sensor T1 - primary heating source (collector, boiler...)
2,3 sensor T2 - hot water tank
11 N - not in use
12 L - not in use
13 N - neutral
14
L - phaze -pump 1(1)A, 250V , 50Hz
15 L - phase mains 230V , 50Hz
16 N - neutral mains 230V , 50Hz
1.5 EXAMPLES OF USE
example: 1
Heating sanitary water with solar collectors.
1(1)A, 250V
1(1)A, 250V