elco LOGON SOL plus Operating Manual
03/2005 12 042 390
Operating Manual
for operators
LOGON SOL plus
Solar controller in wall-mount enclosure
Table of Contents
2
Safety instructions ..........................................................................................3
Product description and technical data ...........................................................3
Accessories and package contents................................................................. 3
Wall-mount enclosure installation ...................................................................4
Relay connection diagram ..............................................................................5
Sensor connection diagram ............................................................................6
Domestic water backup heating using a boiler................................................7
System-related sensor/relay connections ....................................................... 8
Controller operation........................................................................................ 9
Information level ..........................................................................................11
User level .....................................................................................................18
3
Table of Contents
Safety instructions
Product description, specifications
Accessories, package contents
Safety instructions
All electrical work shall be carried out
exclusively by licensed electricians.
When installing or repairing electrical
equipment, always be sure that it is
completely isolated from the supply. Do
not work on live parts.
Install the controller in a dry room and
at a location where it is not exposed to
temperatures > 50°C.
Temperatures can reach as high as
90°C in the connected storage tanks.
As a result, boiling protection must be
provided for domestic hot water storage
tanks (Heizungsanlagenverordnung
Section 8, Clause 2 (heating systems
directive).
The supplied wall-mount enclosure
shall only be used for a stationary installation.
Product description
Solar controller installed in wallmount enclosure to control solar
heating systems for domestic hot
water heating and backup heating.
Ausstattung des Reglers:
Controller features:
Installation
The assembly and initial start-up
shall be done exclusively by authorized professionals who assume
responsibility for proper installation
and start-up.
Following initial startup, the operator will be given instructions regarding user-related features of the controller.
This training is the responsibility of
the authorized professional installer.
Details regarding warranty conditions
The warranty does not cover damage resulting from any of the following:
• improper use
• improper installation or start-up by the
purchaser or third parties, including
the use of third-party components
Adhering to the following will ensure that the warranty applies:
• operating the equipment as it was
designed to be used.
Technical data
• supply voltage: 230 V (AC) 50...60
Hz, power consumption 3 VA
• enclosure type 2 according to EN
60730, enclosure type IP 40 per DIN
40050
• electrical connection via a RAST 5
connector inside the wall-mount enclosure (controller can be plugged in)
• 10 sensor inputs for NTC temperature
sensors
(range: -20 to +149 °C) and solar
sensor
• 1 input for measuring volume flow
• 6 relay outputs: 3 standard (2A) and 3
solid-state relays (1 A) for variable
speed control
• 1 relay output (low voltage) for ba-
ckup heating enable
• auxiliary module for e-Bus connection
or two additional relay outputs
Package contents
• wall-mount enclosure
• LOGON SOL plus controller
• collector sensor (NTC red cable)
for temperatures up to 250°C
temperature measuring range
-20°C to 150°C
rated temperature range
-20°C to 250°C
• two sensors (NTC white cable)
for installation as storage tank and
return-line sensor
temperature range
-20°C to 150°C
rated temperature range
-20°C to 250°C
• thermowell – 100 mm / ½ "
for installation in the collector
• adjustable thermowell, maximum
length 350 mm / ½ " for installation of
the return-line sensor
• thermowell – 150 mm / ½"
for installation of the storage tank
sensor
• large, clearly arranged LCD screen
displays all key system temperatures at a glance
• controller can be plugged into so-
cket in wall-mount enclosure
• seven timer channels for backup
heating using a conventional boiler
or auxiliary heater and for special
functions
• differential temperature control for
solar systems with up to two collector panels and three storage tanks
• twelve predefined system circuits to
configure the solar system and facilitate start-up
• speed control for up to three circula-
ting pumps
• solar system heat gain calculation
• priority selection for multiple storage
tank systems
• backup heating via heating circuit
return flow boosting
• bypass circuit for large collector
surfaces and long piping runs
• external heat exchanger for large
systems with several buffer storage
tanks
• low flow concept ideal for stratified
heat transfer technology
• freeze protection and overheating
protection features for collector and
storage tank
• hot water destratification and Legio-
nella protection functions
• thermostat, temperature compari-
son and timer functions
• connection port for data logger
• oscillation heating to utilize residual
heat
4
Wall-mount enclosure installation
Tools and installation
The following tools are required to
install the controller:
• drill
• 6 mm drill bit
• Screwdriver
Open up the enclosure. You can
use the bottom part as a template
to locate the mounting holes. Drill 6
mm holes at the marked locations.
Fasten the bottom part of the enclosure to the wall using the anchors
and screws provided. Connect the
sensor, supply and pump wiring to
the terminals as shown in the diagram below.
Mount the controller on the connector provided. You can now refasten
the bottom cover of the enclosure.
Ensure that the electrical wiring is
connected properly and use the
strain relief provision when fastening the wires.
Sensor location
The collector sensors shall be mounted
in the supply connection (hot side) of
the collector.
Some solar system components can
become very hot (risk of burn injuries).
The return-line sensors can be mounted
in the lower part of the storage tank or the
return line from the solar heating system.
Thermowells are installed about halfway
up the storage tank to mount the upper
storage tank sensors.
5
Wiring diagram
LOGON SOL plus
Relay assignment
K1
solar circuit pump 1
K2
solar circuit pump 2 (application dependent)
K3
solar circuit pump 3 (application dependent)
K4
K5
K6
application-specific relay connections
6
Wiring diagram
LOGON SOL plus
Sensor assignment
VM
volume flow sensor
S1 TC1
collector temperature, collector panel 1
S2 TC2
collector temperature, collector panel 2
S3 TSP1
upper storage tank temperature, storage tank 1
S4 TSR1
lower storage tank temperature, storage tank 1
S5 TSP2
upper storage tank temperature, storage tank 2
S6 TSR2
lower storage tank temperature, storage tank 2
S7 TSP3
upper storage tank temperature, storage tank 3
S8 TSR3
lower storage tank temperature, storage tank 3
S9 AW
S10 ES
GND
common terminal
application dependent
radiation sensor
7
Domestic water backup heating using a boiler
When the LOGON SOL plus
controller is used to control a boiler
that provides supplemental heat for
the domestic water, it must be interconnected with the boiler controller
(sensor-side terminals 14 and 15,
see connection diagram). The following LOGON SOL plus features
make it capable of interacting flexibly with the boiler controller. A
jumper located on the back of the
controller can be used to choose
between a changeover switch with
resistors and a zero-resistance
changeover switch.
Place the jumper in position Y to
use LOGON SOL plus in conjunction with LOGON controllers
(SYSTRON, UNON, VARION) to
control domestic water backup
heating (see diagram).
The connected resistors are used
to simulate temperatures.
Off = 1320 ohms = 70°C
On = 8200 ohms = 25°C
Place the jumper in position X to
use LOGON SOL plus in conjunction with non-LOGON controllers
(THISION, TRIGON, STRATON or
third-party boilers) to control domestic water backup heating. This selects a changeover switch with zero
resistance.
The jumper is in position X when
the controller leaves the factory.
After installing the controller, choose the
correct system configuration (number of
collectors/storage tanks) from the system circuit diagrams provided.
The manual shows the wiring for the
required sensors and relays for the
selected circuit schematic.
The respective "Sensor assignment"
tables identify which additional sensor
inputs can be connected.
The respective "Relay assignment"
tables identify which relays are available for additional functions.
The connections and settings for the
most important auxiliary functions are
summarized in the manual. If it becomes necessary to choose settings for
the system that deviate from the factory
settings, the changed values should be
noted in this manual. This will be useful
for later servicing of
the installation.
Sensor/Schematic S 1 S 2 S 3 S 4 S 5 S 6 S 7 S 8
1 TC 1 TSP 1 TSR 1
2 TC 1 TSP 1 TSR 1 TSP 2 TSR 2
3 TC 1 TSP 1 TSR 1 TSP 2 TSR 2
4 TC 1 TSP 1 TSR 1 TSP 2 TSR 2
5 TC 1 TSP 1 TSR 1 TSP 2 TSR 2 TSP 3 TSR 3
6 TC 1 TSP 1 TSR 1 TSP 2 TSR 2 TSP 3 TSR 3
7 TC 1 TSP 1 TSR 1 TSP 2 TSR 2 TSP 3 TSR 3
8 TC 1 TC 2 TSP 1 TSR 1
9 TC 1 TC 2 TSP 1 TSR 1 TSP 2 TSR 2
10 TC 1 TC 2 TSP 1 TSR 1 TSP 2 TSR 2 TSP 3 TSR 3
11 TC 1 TC 2 TSP 1 TSR 1 TSP 2 TSR 2
12 TC 1 TC 2 TSP 1 TSR 1 TSP 2 TSR 2 TSP 3 TSR 3
schematic
Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Rela y 6
1 Solarpumpe
2
solar pump
storage tank 1
solar pump
storage tank 2
3
solar pump transfer heat to storage
tank 2
4
solar pump transfer heat to storage
tank 1
transfer heat to storage
tank 2
5
solar pump
storage tank 1
solar pump
storage tank 2
solar pump
storage tank 3
6
solar pump transfer heat to storage
tanks 2/3
transfer heat to storage
tank 3
7
solar pump transfer heat to storage
tank 1
transfer heat to storage
tank 2
transfer heat to storage
tank 3
8
solar pump
collector 1
solar pump
collector 2
9
solar pump
collector 1
solar pump
collector 2
transfer heat to storage
tank 1
transfer heat to storage
tank 2
10
solar pump
collector 1
solar pump
collector 2
transfer heat to storage
tank 1
transfer heat to storage
tank 2
transfer heat to storage
tank 3
11
solar pump
collector 1
solar pump
collector 2
transfer heat to storage
tank 2
12
solar pump
collector 1
solar pump
collector 2
transfer heat to storage
tanks 2/3
transfer heat to storage
tank 3
The sensors can be freely programmed for special functions (thermostat, temperature comparison, heat gain calculation, solar sensor).
System-dependent sensor assignment
Relay assignment
8
System-dependent sensor assignment
Relay assignment
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