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elco LOGON SOL plus User guide

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03/2005 12 042 379
Operating Manual
for professional installers
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
Professional installer level (E 3 - 0)............................................................... 22
Configuration level (KONF / E 3 - 1) ............................................................. 23
Storage tank related settings (SPE / E 3 - 2) ................................................ 29
System settings (SYS / E 3 - 3) ................................................................... 31
Solar heat gain calculations (ERT / E 3 - 4) .................................................. 34
Bypass and heat exchanger selection (WTBP / E 3 - 5)................................ 36
System safety functions (SICH / E 3 - 6)....................................................... 39
Thermostat functions (THE / E 3 - 7) ............................................................ 41
Temperature comparison function (VER / E 3 - 8) ........................................ 43
Hot water destratification (WWU / E 3 - 9) .................................................... 46
Relay test (REL / E 3 - 10)............................................................................ 48
System information (ANZ / E 3 - 11) ............................................................. 49
(E 3 - 12) ...................................................................................................... 50
Parameters................................................................................................... 51
System circuit schematics 1-12 .................................................................... 54
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 in-
stallation.
Product description
Solar controller installed in wall-mount
enclosure to control solar heating sys-
tems for domestic hot water heating
and backup heating.
Controller features:
Installation
The assembly and initial start-up shall
be done exclusively by authorized pro-
fessionals who assume responsibility
for proper installation and start-up.
Following initial start-up, 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 condi-
tions
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, includ-
ing 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 en-
closure (controller can be plugged in).
• 10 sensor inputs for NTC tempera-
ture 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
backup 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 tempera-
tures at a glance
• controller can be plugged into
socket 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 collec-
tor panels and three storage tanks.
• twelve predefined system circuits to
configure the solar system and fa-
cilitate start-up.
• speed control for up to three circu-
lating pumps
• solar system heat gain calculation
• priority selection for multiple stor-
age 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 de-stratification and
Legionella 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 in-
stall 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 bot-
tom 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 provi-
sion 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 termi-
nals 14 and 15, see connection dia-
gram). The following LOGON SOL plus
features make it capable of interacting
flexibly with the boiler controller. A
jumper located on the back of the con-
troller 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 boil-
ers) 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 pro-
vided.
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 avail-
able for additional functions.
The connections and settings for the
most important auxiliary functions are
summarized in the manual. If it be-
comes 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 Relay 6
1 solar pump
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 stor-
age 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 stor-
age tank 3
7 solar pump transfer heat to
storage tank 1
transfer heat to stor-
age 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 stor-
age tank 2
10 solar pump
collector 1
solar pump
collector 2
transfer heat to
storage tank 1
transfer heat to stor-
age 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 stor-
age 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
1 pump operation indicator
2 item identifier
3 lower storage tank return temperature
4 upper storage tank temperatures
5 collector temperatures TCI and TC2
6 information
7 "increase" key
8 "decrease" key
12 next
11 time of day
10 timer settings
9 on / off switch
1 2 3 4 5
9 10 11 12
6
7
8
Icons displayed on LCD screen
9
Controller ON / controller OFF
When the controller is switched on, the
display is "normal". The collector tem-
perature and the upper and lower stor-
age tank temperature of the (first) stor-
age tank can be viewed at a glance.
When the controller is turned off, the
display shows "OFF", the time of day
and the day of the week.
The controller can be switched off by
pressing the [On/Off] key for five sec-
onds.
Controller operation
Turning the controller on and off
first collector temperature
second collector
temperature
upper storage tank
temperature
lower storage tank
temperature
pump ready
pump on
backup heating
alarm
freeze protection
10
In addition, the Info sequence shows
the total heat gain (ERT), the daily heat
gain (ERTd) and the speed of pumps
P1.. P3 (ED1..ED3).
It is preferable to use a volume flow
sensor for the total or daily heat gain
calculation. Parameter VSA = 1 or 2
(E3-4.3) confirms that a volume flow
sensor is being used. The heat gain
display is enabled when confirmation is
received that a volume flow sensor is
present.
If no volume flow sensor is present,
heat gain values can only be dis-
played if the minimum lower set
point for the heat transfer pump is
set to 100 percent. In this situation the
heat gains are calculated on the basis
of the default liquid flow rate.
ERT total heat gain in kWh; range 0 .. 199999 kWh
Total heat gain can be reset to zero by pressing and holding the [-] key for five seconds while a value is being dis-
played.
ERTd daily heat gain in kWh; range 0 .. 999 kWh
The day's heat gain can be reset to zero by pressing and holding the [-] key for five seconds while a value is being dis-
played.
ED1 speed of pump P1 in %, range 30 .. 100 %
ED2 speed of pump P2 in %, range 30 .. 100 %
ED3 speed of pump P3 in %, range 30 .. 100 %
The speeds (ED1 … ED3) are only displayed if the respective minimum set point (USW1.. USW3) is < 100 %.
Default assignment for measurement inputs (vary with system circuit schematic):
S1 TC1 collector temperature or collector temperature sensor for collector panel 1
S2 TC2 collector temperature or collector temperature sensor for collector panel 2
S3 TSP1 upper storage tank temperature or upper storage tank temperature sensor for storage tank 1
S4 TSR1 lower storage tank temperature or lower storage tank temperature sensor for storage tank 1
S5 TSP2 upper storage tank temperature or upper storage tank temperature sensor for storage tank 2
S6 TSR2 lower storage tank temperature or lower storage tank temperature sensor for storage tank 2
S7 TSP3 upper storage tank temperature or upper storage tank temperature sensor for storage tank 3
S8 TSR3 lower storage tank temperature or lower storage tank temperature sensor for storage tank 3
S9 application dependent
S10 application dependent
collector sensor:
temperature measuring range: -20° .. 150°C, rated temperature range: -20° .. 250°C
storage tank/return-line sensor:
temperature measuring range: -20° .. 150°C, rated temperature range: -20° .. 90°C
The following measured values can be assigned to any measured value input depending on the system configuration or on the
activated functions. The measured values - if activated - can be checked using the Info key.
TRH backup heater return-line temperature
TR return-line temperature for heat gain calculation
TX comparison value for heater return-line temperature when backup heater function enabled
in conjunction with VISTRON V 750 LC
TW heat exchanger or bypass temperature
TWW temperature of the first storage tank for hot water destratification
TH1 temperature measurement for first thermostat function
TH2 temperature measurement for second thermostat function
TVA1 temperature A for first temperature comparison function
TVB1 temperature B for first temperature comparison function
TVA2 temperature A for second temperature comparison function
TVB2 temperature B for second temperature comparison function
SE solar sensor to measure impinging solar radiation W/m2
VM volume flow measurement or volume flow sensor (GND, VM), measuring range: 50 .. 1500 l/h
11
Information level
If the appropriate sensors are connected, all rele-
vant storage tank and collector temperatures are
available for display.
Storage tanks can be freely activated or deacti-
vated at the user level. Their status can be dis-
played at the information level.
12
Information level
TRH
backup heater return-line tempera-
ture: sensor input S9 (fixed) is as-
signed via parameter STX (STX set at
level E3 - 1 / 10)
TR
return-line temperature for heat gain
calculation
Use parameter STR to assign a sen-
sor input. (Level E3 – 4 / 1)
TX
comparative value for heater return-
line temperature when backup heat-
ing function is activated (e.g., in con-
junction with VISTRON V750LC): Use
parameter STX to assign a sensor
input (parameter 10, Level E3–1/10).
TW
heat exchanger or bypass tempera-
ture: A sensor input is automatically
assigned when the relevant schematic
is selected (KON, level E 3 -1 / 1).
13
Information level
TWW
temperature of the first storage tank
for hot water destratification
Sensor input S7 is automatically as-
signed when the relevant schematic
is selected (KON, E3 -1 / 1).
TSPO
Temperature measurement in the
upper part of the storage tank for
which hot water destratification was
activated.
TH1
temperature measurement for first
thermostat function: Use parameter
STH1 to assign a sensor input
(parameter 56, E3 – 7 / 1).
TH2
temperature measurement for second
thermostat function: Use parameter
STH2 to assign a sensor input
(parameter 60, E3 – 7 / 5).
14
Information level
TVA1
temperature A for first temperature
comparison function: Use parameter
VSA1 to assign a sensor input
(parameter 64, E3 – 8 / 1).
TVB1
temperature B for first temperature
comparison function:
Use parameter VSB1 to assign a
sensor input
(parameter 65, E3 – 8 / 2).
TVA2
temperature A for second tempera-
ture comparison function: Use pa-
rameter VSA2 to assign a sensor
input
(parameter 69, E3 – 8 / 6).
TVB2
temperature B for second tempera-
ture comparison function: Use pa-
rameter VSB2 to assign a sensor
input
(parameter 70, E3 – 8 / 7).
15
Information level
SE
solar sensor to measure impinging so-
lar radiation in W/m2:
The new, modified SE solar sensor can
be connected to any temperature
measurement input, S1 to S10.
Use parameter SSE to assign the input
(parameter 17, E3 – 1 / 17).
VM
volume flow measurement or volume
sensor (terminals: GND, VM), measur-
ing range: 50 .. 1500 l/h
16
Information level
In addition, the Info sequence shows
the total heat gain (ERT), the daily heat
gain (ERTd) and the speed of pumps
P1.. P3 (ED1..ED3).
It is preferable to use a volume flow
sensor for the total or daily heat gain
calculation. Parameter VSA = 1 or 2
(E3 - 4 / 3) confirms that a volume flow
sensor is being used. The heat gain
display is enabled when confirmation is
received that a volume flow sensor is
present. If no volume flow sensor is
present, heat gain values can only
be displayed if the minimum lower
set point for the heat transfer pump
is set to 100 percent. In this situation
the heat gains are calculated on the
basis of the default liquid flow rate.
ERTA total heat gain in kWh;
cumulative annual heat gain
range: 0 .. 199999 kWh
Total heat gain can be reset to zero by
pressing and holding the [-] key for five
seconds while a value is being dis-
played.
ERT0 previous day's heat gain
in kWh;
previous day's heat gain displayed
range: 0 .. 999 kWh
Heat gain can be reset to zero by
pressing and holding the [-] key for five
seconds while a value is being dis-
played.
ERTd daily heat gain in kWh;
Shows the running total for the day's
heat gain. The total is reset to zero at
12:00 a.m.
range: 0 .. 999 kWh
The day's heat gain can be reset to
zero by pressing and holding the [-] key
for five seconds while a value is being
displayed.
17
Information level
Speeds (ED1 … ED3) are only dis-
played if the respective minimum set
point (USW1.. USW3) is < 100 %
(parameters 30, 32, 34, level E3 – 2 / 8,
10, 12).
ED1 speed of pump P1 in %, range
30 .. 100 %
ED2 speed of pump P2 in %, range
30 .. 100 %
ED3 speed of pump P3 in %, range
30 .. 100 %
18
User level
In addition to operational settings, the
time of day and the timer settings for
the activated timer channels can be
set at the user level. If no functions
are activated by timer channels, the
clock key can only be used to display
and set the time of day.
MAX1
Maximum storage tank heat transfer
temperature for storage tank 1 (upper
heat transfer temperature limit) with
reference to measurement TSP1
when temperature sensor TSP1 is
connected or with reference to meas-
urement TSR1 if temperature sensor
TSP1 is not connected.
MAX1
range: 10 .. 90°C;
default setting: MAX1 = 70°C.
MAX2
Maximum storage tank heat transfer
temperature for storage tank 2 (upper
heat transfer temperature limit) with
reference to measurement TSP2
when temperature sensor TSP2 is
connected or with reference to meas-
urement TSR2 if temperature sensor
TSP2 is not connected. MAX2 is only
displayed if the system configuration
includes storage tank 2.
MAX2
range: 10 .. 90°C;
default setting: MAX2 = 70°C.
MAX3
Maximum storage tank heat transfer
temperature for storage tank 3 (upper
heat transfer temperature limit) with
reference to measurement TSP3
when temperature sensor TSP3 is
connected or with reference to meas-
urement TSR3 if temperature sensor
TSP3 is not connected. MAX3 is only
displayed if the system configuration
includes storage tank 3.
MAX3
range: 10 .. 90°C;
default setting: MAX3 = 70°C.
Navigate to the user level by pressing
the (+) or (-) key. The parameter set-
tings can be changed after pressing the
(+) or (-) key a second time. Press the
enter key to move to the next displayed
value.
Some of the parameters are accessible
from the user level and some from the
professional installer level (level "E3")
User level parameter settings (AE)
Parameter settings that need to be set
by the user are set at the user level. Do
not adjust the user settings until after
the appropriate system circuit sche-
matic has been selected (E3 - 1 No 1),
since all parameters are reset to the
factory default setting when a different
schematic is selected.
19
User level
NTH
low temperature set point for backup
heating:
The storage tank low temperature setting
that initiates backup heating refers to the
storage tank selected by parameter set-
ting SNH = n (n = 1 .. 3, level E3 – 1 / 7).
It is the temperature that initiates dual-
source backup heating with reference to
measurement TSPn (or TSRn if TSPn is
not connected). If the temperature falls
below the low temperature setting during
the time the backup heating function is
enabled, backup heating is activated
SPA1
YES/NO – setting:
Activate or temporarily deactivate stor-
age tank 1.
No 3
Deactivation occurs because the maxi-
mum storage tank heat transfer tem-
perature is internally preset to 10°C.
This setting is not affected by the col-
lector safety function.
SPA1 = YES: storage tank 1 acti-
vated
SPA1 = NO: storage tank 1 deacti-
vated
default setting: SPA1 = YES
Parameter SPA1 is disabled for sys-
tem configurations 1 and 8.
until temperature TSPn (or TSRn) >=
NTH + NHD, or until the enable time
has elapsed.
NTH setting range: 10 .. 90°C;
default setting: NTH = 40°C
The backup heating function is as-
signed to timer channel CH1. Backup
heating enable times are pro-
grammed using CH1. If no times are
set, backup heating is always en-
abled.
(NHD adjustable at level E3 – 2 / 7)
SPA2
YES/NO – setting:
Activate or temporarily deactivate stor-
age tank 2.
No 4
Deactivation occurs because the maxi-
mum storage tank heat transfer tem-
perature is internally preset to 10°C.
This setting is not affected by the col-
lector safety function.
SPA2 = YES: storage tank 2 acti-
vated
SPA2 = NO: storage tank 2 deacti-
vated
default setting: SPA2 = YES
Parameter SPA2 is disabled for sys-
tem configurations 1 and 8.
SPA3
YES/NO – setting:
Activate or temporarily deactivate stor-
age tank 3.
No 5
Deactivation occurs because the maxi-
mum storage tank heat transfer tem-
perature is internally preset to 10°C.
This setting is not affected by the col-
lector safety function.
SPA3 = YES: storage tank 3 acti-
vated
SPA3 = NO: storage tank 3 deacti-
vated
default setting: SPA3 = YES
Parameter SPA3 is disabled for sys-
tem configurations 1,2,3,4,8,9 and 11.
20
User level
Displaying and setting the day and time
Displaying and setting the date
To set the time of day, press the following controller
keys in sequence:
time -> enter -> Use plus or minus to set the hour. ->
enter -> Use plus or minus to set the minute. ->
enter -> Use plus or minus to set the day. ->
Press the clock key to confirm the changes.
Return to the normal display without saving the
changes by pressing the On/Off key.
To set the date, press the following controller keys in sequence:
time -> question mark -> use plus or minus to set the year ->
enter -> use plus or minus to set the day ->
enter -> use plus or minus to set the month ->
Press the clock key to confirm the changes.
Return to the normal display without saving the changes by pressing the On/Off key.
/