SunMaxx Solar SmartMaxx-Pro-L4 User manual

INSTALLATION GUIDE
SMARTMAXX SOLAR CONTROLLERS
WWW.SUNMAXXSOLAR.COM
MODEL NUMBER
SmartMaxx-Pro-L4
SmartMaxx-Pro-XL6D
X

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
 4A
 6B
 8C
 116
Table of Contents
 15E
 171
 172
 183
 184
 215
 236
 407
 408
 419
 41Z


3 mechanical relays (2 on/o, 1 changeover contact)
1 PWM / 0-10V for high ecency pumps
5 PT1000 temperature sensor inputs
Version 3
3 mechanical relays (2 on/o, 1 changeover contact)
2 PWM / 0-10V for high ecency pumps
6 PT1000 temperature sensor inputs
2 VFS / RPS direct sensor inputs


3 mechanical relays (2 on/o, 1 changeover contact)
1 PWM / 0-10V for high ecency pumps
5 PT1000 temperature sensor inputs

3 mechanical relays (2 on/o, 1 changeover contact)
2 PWM / 0-10V for high ecency pumps
6 PT1000 temperature sensor inputs
2 VFS / RPS direct sensor inputs
SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com


2 mechanical relays (1 on/o, 1 change-over contact)
1 electronic relay for speed control of standard pumps
1 PWM / 0-10V for high ecency pumps
5 PT1000 temperature sensor inputs

1 mechanical relay (change-over contact)
2 electronical relays for speed control of standard pumps
2 PWM / 0-10V for high ecency pumps
6 temperature sensor inputs
2 VFS / RPS direct sensor inputs




SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
A. Safety Instrucons
By axing the CE mark to the unit the manufacturer declares that the XTDC conforms to the following relevant safety regulaons:
- EC low voltage direcve 2006/95/EC
- EC electromagnec compability direcve 2004/108/EC
Conformity has been veri ed and the corresponding documentaon and the EC declaraon of conformity are kept on  le by the manufacturer.

These installaon and operang instrucons contain basic instrucons and important informaon regarding safety, installaon, commissioning,
maintenance and the opmal use of the unit. Therefore these instrucons must be read completely and understood by the installaon technician/
specialist and by the system user before installaon, commissioning and operaon of the unit.
The valid accident prevenon regulaons, VDE regulaons, the regulaons of the local power ulity, the applicable DIN-EN standards and the
installaon and operang instrucon of the addional system components must also be observed. The controller does not under any circumstances
replace any safety devices to be provided by the customer! Installaon, electrical connecon, commissioning and maintenance of the unit may only
be carried out by specialists who possess the appropriate training.
For the user: Make sure that the specialist gives you detailed informaon on the funcon and operaon of the controller. Always keep these instruc-
ons in the vicinity of the controller.

DANGER
Failure to observe these instrucons can result in danger to life from electric voltage
DANGER
Failure to observe these instrucons can result in serious damage to health such as scalding, or even life-threatening injuries
CAUTION
Failure to observe these instrucons can result in destrucon of the unit or the system, or damage to the environment.
CAUTION
Informaon which is especially important for the funcon and opmal use of the unit and the system.

• Changes, addions to or conversion of the unit are not permied without the wrien permission from the manufacturer
• It is likewise forbidden to install addional components that have not been tested together with the unit
• If it becomes clear that safe operaon of the unit is no longer possible, for example because of damage to the housing, then turn the controller
o immediately
• Any parts of the unit or accessories that are not in perfect condion must be exchanged immediately
• Use only original spare parts and accessories from the manufacturer.
• Markings made on the unit at the factory must not be altered, removed or made illegible
• Only the sengs actually described in these instrucons may be made on the controller

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
DANGER
Changes to the unit can compromise the safety and funcon of the unit or the enre system.

The controller has been manufactured and tested with regard to high quality and safety requirements. The unit is subject to the statutory guarantee
period of two years from the date of sale.
The warranty and liability shall not include, however, any injury to persons or material damage that is aributable to one or more of the following
causes:
- Failure to observe these installaon and operang instrucons
- Improper installaon, commissioning, maintenance and operaon
- Improperly executed repairs
- Unauthorised structural changes to the unit
- Installaon of addional components that have not been tested together with the unit
- Any damage resulng from connued use of the unit despite an obvious defect
- Failure to use original spare parts and accessories
- Use of the device for other than its intended purpose
- Operaon above or below the limit values listed in the speci caons
- Force majeure

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com

B. Descripon Of Controller

Mains Voltage 100 - 240VAC
Mains Frequency 50 - 60 Hz
Power Consumpon 0.5W - 2.5W
Internal Fuse T2A / 250V slow blow
Protecon Category IP40
Protecon Class II
Overvoltage Category II
Degree of Polluon Category II
 CAN Bus

Collector and outdoor sensor < 98 
Other PT1000 Sensors < 32 
VFS / RPS Sensors < 10 
CAN < 10 
PWM / 0...10V < 10 
Electronic Relay < 10 
Mechanical Relay < 32 
 RTC w/ 24 Hour Power Reserve

Ambient Temperature
For Controller Operaon 320F to 1040F
For Transport / Storage 320F to 1400F
Air Humidity
For Controller Operaon Max: 85% rel. humidity @ 770F
For Transport / Storage no moisture condensaon
Other Specicaons & Dimensions:
Housing Design 3-Part, ABS Plasc
Installaon Methods Wall Install / Oponal Panel Install
Overall Dimensions 6.42” x 4.33” x 2.05”
Aperture Installaon Dimensions 6.18” x 4.33” x 2.05”
Display Full graphical display, 128 x 128
Light Diode Mul-color, Red / Green
Operaon 4 entry keys
vers. 1 Vers. 2 Vers. 3 Vers. 4
Mechanical relay 460VAC for AC1 / 460W for AC3 3 (R1 - R3) 2 (R2 - R3) 3 (R1 - R3) 1 (R3)
Electronic relay: min. 5W / max. 120W for AC3 -1 (R1) -2 (R1 - R2)
0-10V output, tolerance 10%, 10 k Ω load or
PWM output freq. 1 kHz, level 10 V 1122
PT1000 aensor input measuring range -40C to 300C 5566
VFS / RPS inputs
0C to -100C (-25C to 120C short term)
- - 2 2
0.26 G/min. - 3.17 G/min. (VFS 1 - 12)
0.53 G/min. - 10.57 G/min. (VFS 2 - 40)
1.32 G/min. - 26.42 G/min. (VFS 5 - 100)
2.64 G/min. - 52.83 G/min. (VFS 10 - 200)
0 - 0.6 bar
0 - 1 bar
0 - 1.6 bar
0 - 2.5 bar
0 - 4 bar
0 - 6 bar
0 - 10 bar

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com

F 32 50 68 86 104 122 140 158 176 194 212
Ω1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385

The Temperature Dierence Controller LTDC facilitates ecient use and funcon control of your solar or heang system. The device is impressive
most of all for its funconality and simple, almost self-explanatory operaon. For each step in the input process the individual entry keys are as-
signed to appropriate funcons and explained. The controller menu contains headwords for the measured values and sengs, as well as help texts
or clearly-structured graphics.
The LTDC can be used as a solar controller for the various system variants illustrated and explained under “D.2. - Hydraulic variants / systems” on
page 13.
Important characteriscs of the LTDC :
- Depicon of graphics and texts in a lighted display
- Simple viewing of the current measurement values
- Analysis and monitoring of the system by means of stascal graphics,etc.
- Individual conguraon of special funcons
- Extensive seng menus with explanaons
- Menu block can be acvated to prevent unintenonal seng changes
- Reseng to previously selected values or factory sengs
- A wide range of addional funcons are available.
The controller is available 4 dierent versions. See page 3.

- Solar controller XTDC
- 3 screws 3,5x35mm and 3 plugs 6mm for wall installaon
- 12 strain relief clips with 24 screws, replacement fuse 1x T2A / 250V
- Installaon and instrucons manual LTDC
Oponally contained depending on design/order:
- PT1000 temperature sensors and immersion sensors
Addionally available:
- Pt1000 temperature sensor, immersion sleeves, overvoltage
protecon,
- Datalogger with Ethernet connecon
B.5 DISPOSAL AND POLLUTANTS
The unit conforms to the European RoHS direcve 2002/95/EC for the restricon of the use of certain hazardous substances in electrical and elec-
tronic equipment.
CAUTION
The unit must not under any circumstances be disposed of with ordinary household refuse. Dispose of the unit only at appropriate
collecon points or ship it back to the seller or manufacturer.

SunMaxx Solar |5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
C. Installaon

DANGER
Before working on the unit, switch o the power supply and secure it against being switched on again! Check for the absence of
power!
Electrical connecons may only be made by a specialist and in compliance with the applicable regulaons. Do not use the control-
ler if the housing shows visible damage.
CAUTION
The cables being connected to the unit must not be stripped by more than 55mm, and the cable jacket must each into the housing
just to the other side of the strain relief.
CAUTION
Controller and VFS sensor have to have the same ground potenal. The VFS sensor has a funconal earth connector (PELV). The
PE-connector of the controller has to be connected to the pipe system near the sensor.
CAUTION
Low-voltage cables such as temperature sensor cables must be routed separately from mains voltage cables. Feed temperature
sensor cables only into the le-hand side of the unit, and mains voltage cables only into the right-hand side.
CAUTION
The customer must provide an all-pole disconnecng device, e.g. a heang emergency switch.

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
1. Unscrew cover screw completely
2. Carefully pull upper part of housing from lower part.
3. Set upper part of housing aside, being sure not to touch the electronics when
doing so.
4. Hold the lower part of the housing up to the selected posion and mark the 3
mounng holes. Make sure that the wall surface is as even as possible so that
the housing does not become distorted when it is screwed on.
5. Using a drill and size 6 bit, drill 3 holes at the points marked on the wall and
push in the plugs.
6. Insert the upper screw and screw it in slightly.
7. Fit the upper part of the housing and insert the other two screws.
8. Align the housing and ghten the three screws.

CAUTION
Install the controller only in dry areas and under the ambient condions described under B.1 “Specicaons”.
CAUTION
Controller must be inaccessible from the rear.
C.2.1
C.2.2

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
1. Select necessary program/hydraulics (s. “D.2. - Hydraulic variants / systems” on page
13)
2. Strip cables by 55mm max., insert, t the strain relief devices, strip the last 8-9mm of
the wires (Fig. “C.2.3.”)
3. Open the terminals using a suitable screwdriver (Fig. “C.2.4.”) and make electrical con-
necons on the controller
4. Ret terminal connecon cover and fasten screw.
5. Switch on mains voltage and place controller in operaon.
C.2.3
C.2.4 Instrucons for clamps:
1. Insert screw driver into the upper hole. Push the lock clamp inside down. Keep the
screw driver in this posion.
2. Insert cable into the lower opening.
3. Remove screw driver. The clamp will lock the cable.

The controller operates with Pt1000 temperature sensors which are accurate to the degree, thus ensuring opmal control of system funcons.
CAUTION
The temperature sensor cables must be routed separately from mains voltage cables, and must not, for example, be routed in the
same cable duct!
CAUTION
Sensor cables for S1 and S5 can be extended to a maximum of 30m using a cable with a cross-secon of at least 0.75mm². Sensor
cables for S2 to S4 and S6 can be extended to a maximum of 10m using a cable with a cross-secon of at least 0.75mm². Make
sure that there is no contact resistance!
CAUTION
Connect the VFS sensors with the matching jacks. To prevent damage to the Direct Sensors it is highly recommended to install
them in to the return. When installing the Vortex Flow Sensors (VFS), observe the correct  ow direcon!
CAUTION
Posion the sensor precisely in the area to be measured! Only use immersion, pipe-mounted or at-mounted sensor suitable for
the specic area of applicaon with the appropriate permissible temperature range.

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
DANGER
Main Side: 100 - 240VAC
D. Installaon

CAUTION
Max: 12v

LTDC Version V3+V4:
VFS1 Grundfos Direct Sensor
VFS2 Grundfos Direct Sensor
CAN1 CAN Bus
CAN2 CAN Bus

Terminal: Connecon for:
S1 Temperature sensor 1
S2 Temperature sensor 2
S3 Temperature sensor 3
S4 Temperature sensor 4
S5 Temperature sensor 5
V1 0-10V / PWM signal output e.g. for control of
High Eciency pumps

V2 0-10V / PWM signal output e.g. for control of
High Eciency pumps
S6 Temperature sensor 6
+ 12V power supply
Connecon of sensor earth to the grey lower terminal block.

Terminal: Connecon for:
R1 Relay 1
R2 Relay 2
R3 Relay 3 (normally open)
R3I Relay 3 (normally closed)
L Netz Außenleiter L
N Netz Neutralleiter N
The neutral conductors are connected to the lower blue terminals
The PE protecve conductor must be connected to the PE metal
terminal block!
The power supply of HE pumps with 0-10V / PWM pumps can be
connected to the corresponding relay (V1 -> R1, R2 -> V2), since the
relays are switched on and o with the signal.

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com

 



fer

Increase 


S1 Collector Collector Boiler Storage 1 Storage Top Storage Top Source Sensor
S2 Storage Pool Storage Storage 2 Return Storage Boom Target Sensor
S3
S4
S5
S6
VFS1
VFS2
R1 / V1 Solar Pump Solar Pump Charge Pump Pump Pump 1
R2 - -
R3 - - Switching Valve Thermostat
Stop Valve
Solar W/ Pool +
WT Sensor
Solar +
Thermostat
Solar + 2-Zone
Storage + Valve
Solar + Return
Flow Increase Solar + Bypass Solar + WT
S1 Source Sensor Collector Collector Collector Collector Collector Collector
S2 Storage Pool Storage Storage Top Storage Boom Storage Storage
S3 Thermostat Storage Boom Storage Middle Bypass
S4 Heat Exchanger Return Heat Exchanger
S5
S6
VFS1
VFS2
R1 / V1 Solar Pumps Solar Pump Solar Pump Solar Pump Solar Pump Solar Pump
R2 Secondary
Pump
R3 Valve Thermostat Bypass Valve Bypass Valve Bypass Valve

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com









Transfer




S1 Collector 1 Collector 1 Collector Collector Collector Collector Collector
S2 Storage Storage Storage 1 Storage 1 Storage 1
Boom
Pool Storage Boom
S3 Storage 2 Storage 2 Storage 2 Top Storage Top
S4 Storage 1 Top Heat Exchanger
S5 Collector 2 Thermostat
S6
VFS1
VFS2
R1 / V1 Solar Pump Solar Pump
Collector 1
Solar Pump Solar Pump
Storage 1
Solar Pump Solar Pump Solar Pump
R2 Solar Pump
Collector 2
Solar Pump
Storage 2
Transfer Pump Secondary
Pump
R3 Switching Valve Switching Valve Switching Valve













S1 Collector Collector Collector Collector Collector Collector
S2 Storage Storage Storage Storage Boom Storage Top Storage 1
S3 Solar Fuel Boiler Storage Top Storage Return Storage 2
S4 Heat Exchanger Heat Exchanger
S5
S6
VFS1
VFS2
R1 / V1 Solar Pump Solar Pump Solar Pump Solar Pump Solar Pump Solar Pump
R2 Solar Fuel Boiler
Pump
Solar Pump Solar Pump Secondary Pump Secondary Pump
R3 Cooler Switching Valve Switching Valve

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com



 








S1 Collector Collector Collector 1 Collector Collector Collector 1
S2 Storage Storage Boom Storage 1 Storage 1
Boom
Storage Boom Storage 1
S3 Pool SF-Boiler Storage 2 Storage 1 Top Storage Middle Storage 2
S4 Heat Exchanger Storage Top Return Storage Top
S5 Collector 2 Thermostat Thermostat Collector 2
S6
VFS1
VFS2
R1 / V1 Solar Pump Solar Pump Solar Pump 1 Solar Pump Solar Pump Solar Pump
R2 Solar Pump Solar Pump 2 Charge Pump Thermostat Switching Valve
Collector
R3 Secondary Pump +
Switching Valve
Thermostat Return Valve Switching Valve
Storage



WT

Pumps


S1 Collector 1 Collector Collector Collector
S2 Storage 1 Storage Storage 1 Storage 1
S3 Storage 2 Pool Storage 2 Storage 2
S4 Heat Exchanger
(secondary)
Storage 3 Storage 3
S5 Collector 2
S6
VFS1
VFS2
R1 / V1 Solar Pump 1 Solar Pump Solar Pump 1 Solar Pump
R2 Solar Pump 2 Secondary Pump Solar Pump 2 Switching Valve 1 (1 or 2/3)
R3 Switching Valve Switching Valve Solar Pump 3 Switching Valve 2 (2 or 3)

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com

E. Operaon
The display (1), with its extensive text and graphics mode, is almost self-explanatory, allowing easy
operaon of the controller.
To change from the overview to the sengs menu, press the “esc” key.
The green status LED (2) lights up when a relay is acve, the red LED blinks when an error occurs.
Inputs are made with 4 buons (3+4), which funcons change context sensive.
The “esc” key (3) is always used to cancel or exit a menu.
If applicable there will be a request for conrmaon as to whether the changes which have been
made should be saved.
The funcon of each of the other three keys (4) is shown in the display line directly above the keys;
the right-hand key is generally has a conrmaon and selecon funcon.
Examples of key funcons:
+/- = enlarge/shrink values
˅/˄ = scroll menu down/up
yes/no = approve/reject
Info = addional informaon
Back = to previous screen
ok = con rm selecon
Conrm = conrm seng
Examples of display symbols:
Pump (rotates in operaon)
Valve (direcon of  ow in black)
Collector
Storage
Pool
Temperature sensor
Heat exchanger
Load pause (see Load me)
Warning / error message
New informaon available
Logging is acve
More symbols can be found in the chapter
„Special funcons“

The rst me the controller is turned on and aer the language and me are
set, a query appears as to whether you want to parametrise the controller
using the commissioning help or not. The commissioning help can also be
terminated or called up again at any me in the special funcons menu. The
commissioning help guides you through the necessary basic sengs in the
correct order, and provides brief descripons of each parameter in the display.
Pressing the “esc” key takes you back to the previous value so you can look at
the selected seng again or adjust it if desired. Pressing the “esc” more than
once takes you back step by step to the selecon mode, thus cancelling the
commissioning help. Finally, menu “3.2. - Manual” on page 24 should be used
to test the switch outputs with the consumers connected, and to check the
sensor values for plausibility. Then switch on automac mode.
CAUTION
Observe the explanaons for the the individual parameters on the following pages, and check whether further sengs are
necessary for your applicaon.

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com

If you decide not to use the commissioning help, you should make the necessary sengs in the following sequence:
- Menu 9. Language, page 44
- Menu 6.23 Time and Date, page 42
- Menu 6.1 Programmwahl, page 27
- Menu 4. Sengs, all values, page 23
- Menu 5. Protecve funcons, if necessary, page 25
- Menu 6. Special funcons, if necessary, page 27
Finally, menu “3.2. - Manual” on page 22 should be used to test the switch outputs with the consumers connected, and to check the sensor values
for plausibility. Then switch on automac mode.

The graphics or overview mode appears when no key has been press for 2 minutes, or when the
main menu is exited by pressing “esc”.
The up and down buons are used to scroll through the list of sensors and relays.
You can enter the Main menu by pressing the „esc“ key. The following menus are
available:
1. Measurements Current temperature values with explanations
2. Statistics Function control of the system with operating hours, etc
3. Operating Mode Automatic mode, manual mode or switch unit off
4. Settings Set parameters needed for normal operation
5. Protections Solar and frost protection, recooling, anti-seizing protection
6. Special Functions Program selection, sensor calibration, clock, additional sensor
7. Menu Lock Against unintentional setting changes at critical points
8. Service Data For diagnosis in the event of an error
9. Language Language selection
CAUTION
Observe the explanaons for the the individual parameters on the following pages, and check whether further sengs are neces-
sary for your applicaon.

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
1. Measurement Values
The menu “1. Measurement values” serves to display the currently measured temperatures.
The menu is closed by pressing “esc” or selecng “Exit measurement values”.
Selecng “Overview” or “esc” exits the Info mode.
CAUTION
If “--” appears on the display instead of the measurement value, then there may be a defecve or incorrect temperature sensor. If
the cables are too long or the sensors are not placed opmally, the result may be small deviaons in the measurement values. In
this case the display values can be compensated for by making entries on the controller. Follow the instrucons under “6.7. - Sen-
sor calibraon” on page 47.
What measurement values are displayed depends on the selected program, the connected sensors and the specic device design.
2. Stascs
The menu “2. Stascs” is used for funcon control and long-term monitoring of the system.
The menu is closed by pressing “esc” or selecng “Exit stascs”.
CAUTION
For analysis of the system data it is essenal for the me to be set accurately on
the controller. Please note that the clock does not connue to run if the mains
voltage is interrupted, and must therefore be reset. Improper operaon or an in-
correct me may result in data being deleted, recorded incorrectly or overwrien.
The manufacturer accepts no liability for the recorded data!

Display of operang hours of the solar pump connected to the controller; various me ranges (day-year) are available.

Display of the heat output of the system.

This provides a clearly-organised display of the data listed under 2.1-2.2 as a bar graph. Various me ranges are available for comparison. The two
le-hand keys can be used to page through the data.

Display of the last 20 events occurring in the system with indicaon of date and me.

Reseng and deleng the individual analyses. The funcon “All stascs” clears all analyses but not the error messages.

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
3. Operang Modes
In menu “3. Operang modes” the controller can either be placed in automac mode, switched o,
or placed in a manual operang mode.
The menu is closed by pressing “esc” or selecng “Exit operang modes”.

Automac mode is the normal operang mode of the controller. Only automac mode provides proper controller funcon taking into account the
current temperatures and the parameters that have been set! Aer an interrupon of the mains voltage the controller automacally returns to the
last operang mode selected!

The relay and thus the connected consumer are switched on and o by pressing a key, with no regard to the current temperatures and the param-
eters which have been set. The measured temperatures are also shown to provide an overview and funcon control.
DANGER
When operang mode “Manual” is acvated, the current temperatures and the selected parameters are no longer considered.
There is a danger of scalding or serious damage to the system. The operang mode “Manual” may only be used by specialists for
brief funcon tests or during commissioning!

CAUTION
When the operang mode “O” is acvated, all controller funcons are switched o. This can lead, for example, to overheang on
the solar collector or other system components. The measured temperatures are sll displayed to provide an overview.
4. Sengs
The necessary basic sengs required for the control funcon are made in menu “4. Sengs”.
The menu is closed by pressing “esc” or selecng “Exit sengs”.
CAUTION
This does not under any circumstances replace the safety facilies to be provided
by the customer!
CAUTION
The following pages contain generally valid descripons for the sengs. Enumera-
ons may vary .

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com


If this value is exceeded at the applicable sensor X and the other condions are also met, then the controller switches on the associated pump and/
or valve. If the temperature at the sensor drops below this value by 5°C, then the pump and/or the valve are switched o again.
Sengs range : 0°C to 99 °C (32°F to 210 °F / Default seng: 20°C (68°F)


If this value is exceeded at the applicable sensor X, the controller switches the associated pump and/or valve o. If the temperature falls below this
value again and the other condions are also met, then the controller switches the pump and/or valve on again.
Sengs range : 0°C to 99 °C (32°F to 210 °F) / Default seng: 60°C (140°F)
DANGER
Temperature values which are set too high can lead to scalding or damage to the system. Scalding protecon must be provided by
the customer!


If this value is exceeded at the applicable sensor, the controller switches the associated pump and/or valve o. If the temperature falls below this
value again and the other condions are also met, then the controller switches the pump and/or valve on again.
Sengs range : 0°C to 50 °C (32°F to 122°F / Default seng: 30°C (86°F)
DANGER
Temperature values which are set too high can lead to scalding or damage to the system. Scalding protecon must be provided by
the customer!


If this value is exceeded at the applicable sensor, the controller switches the associated pump and/or valve o. If the temperature falls below this
value again and the other condions are also met, then the controller switches the pump and/or valve on again.
Sengs range: 0°C to 50°C (32°F to 122°F) / Default seng: 28°C (82°F)
DANGER
Temperature values that are set too high can lead to scalding or damage to the system. Scalding protecon must be provided by
the customer!

SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com


This determines the order, in which the storages are charged. If the same priority is set for 2 storages, the charging is not switchedm over unl
charging the acve storage is not possible anymore.
Sengs range: 1 (highest) - 3 (lowest)


In systems with mulple storage tanks, charging of the lower-priority storage tank will never take place unl this set temperature setpoint at the
storage tank sensor of the highest-priority storage tank is exceeded.
Seng range: from 0°C to 90°C (32°F to 194°F) / default seng: 40°C (104°F)


The charging of the lower-priority storage tank is interrupted aer the seable me in order to check whether the collector has reached a tempera-
ture level that allows charging in the higher-priority storage tank. If so, the priority storage tank is charged.
If not, the increase is measured (see “4.9. - Increase”), to check if charging of the priority storage tank will be possible shortly.
Seng range: from 1 to 90 minutes / default seng: 20 minutes
CAUTION
If the set temperature dierence is too small, this may result in ineecve operaon, depending on the system and sensor posi-
ons.Special switching condions apply for speed control (see „6.2. - Speed control“ on page 27)!
∆

If this temperature dierence between the reference sensors is exceeded and the other condions are also met, then the controller switches the
applicable relay on. When the temperature drops to ΔT O, then the relay is switched o.
Sengs range: ΔT from 4°C to 50°C (39°F to 122°F) / ΔT-O from 2°C to 49°C (35°F to 120°F)
Default seng: Depends on selected hydraulic variant


For precise seng of the charging priories for systems with mulple storage tanks, the necessary temperature increase of the collector at which
the interrupon of the charging into the lower-priority storage tank is extended by one minute is set here. The interrupon is extended because the
temperature increase of the collector is expected to enable charging in the higher-priority storage tank soon.
As soon as ΔT condions are met, the priority storage tank is charged. If the rise in temperature falls below the set value, then the charging of the
lower-priority storage tank is enabled again.
Seng range: from 1°C to 10°C (33°F to 50°F) /default seng: 3°C (37°F)