UVR64

Produkte

Four circuit universal controller

The UVR64 unit features various thermostatic, differential temperature and speed control functions for use in solar thermal and heating systems. Approximately 600 different links from a wide range of ow schemes are available. Output-related priority, time switching function, miscellaneous safety and start options round o the usage options.

Features:

6 inputs for temperature sensors
4 outputs (two semiconductor outputs and two relay switching contacts)
1 auxiliary output with changeover contact
4 adjustable di erential temperatures
6 adjustable maximum and minimum thermostat thresholds
All switch hystereses are adjustable and temperature dependent
Adjustable pump after-run times
Shiftable pump speed control on two outputs
Time switch with three shiftable time windows and power reserve
Priority of multiple consumer ow schemes is freely selectable
Data link for temperature evaluation on the PC via D-LOGG

Tech. Data

Differential temperatures:	adjustable from 0 to 99 °C
Minimum / maximum threshold values:	adjustable from 0 to 150 °C
Accuracy:	typ. ±2%
Operating voltage:	230 V AC 50-60 Hz
Power consumption:	max. 2 W
Rated current load:	max. 1.5 A per output, or 5 A in total
Fuse:	3.15 A quick-blow (unit + outputs)
Transformer:	short-circuit proof
Protection class:	II - protective insulation
Protection degree:	IP40
Dimensions (W/H/D)	mm
Weight:	1400 g
Permissible ambient temperature	0 to 45 °C

Accessoires

Art. Nr.	01/UVR64
KFPT1000	1
BFPT1000	5
TH140	4
Power cable	1
Install. equipment.	1

Diagramms

Diagram 0:

Solar thermal system with 2 loads and 2 loading pumps

Program 0: Function according to diagram.Program 1: Instead of the two solar pumps, one common pump and a three-way valve are used. The speed control (if activated) only affects circuit 1.
A1... common pump
A4... valve (A4/S has power when loading storage tank SP2)

All programs +2: The loading of storage tank 1 is normally only controlled on the basis of the difference: SP2 T6 - SP1 T2. This program also considers the boiler temperature.
This means that while storage tank 1 is being loaded, the difference of boiler T5 - SP1 T2 (also with the setting diff3) is taken into account. In addition, both min thresholds apply.

All programs +4: If both storage tanks have reached their maximum temperatures by means of the solar thermal system, loading pump A3 connects to solar pump A1 (recooling function).

All programs +8: If both storage tanks have reached their maximum temperatures by means of the solar thermal system, buffer loading pump A2 connects to solar pump A4 (recooling function).

64_P0

Diagram 16:

Solar thermal system with 3 loads and loading pump function.

Program 16: Function according to diagram.

Program 17: For a pump-valve system between SP1 (water heater) and SP2 (buffer). Thus, SP1 and SP2 are loaded by a common pump, via a three-way valve.
The speed control (if activated) only affects circuit 1.
A1... common pump A2... valve (A2 has power when loading storage tank SP2)

Program 18: For a pump-valve system between SP1 (water heater) and SP3 (pool).
A1... common pump A3... valve (A3 has power when loading pool SP3)

Program 19: All three storage tanks are loaded via one common pump. The valve A3 switches between SP2 and SP3, and A2 in series between SP1 and SP2. This means that when both valves have no power, SP1 is loaded.
A1... common pump A3... valve (A3 has power when loading pool SP3)
A2... valve (A2 has power when loading buffer SP2)

All programs +4: A4 serves only as a signal contact which indicates that all storage tanks have reached their max thresholds.

All programs +8: If all storage tanks are fully loaded, tank 2 continues to be loaded, regardless of max2.

64_P16

Diagram 32:

Solar thermal system with 4 loads

Program 32: Function according to diagram.

Program 33: For a pump-valve system between storage tank SP1 and storage tank SP2. Thus, storage tank SP1 and storage tank SP2 are loaded by a common pump, via a three-way valve. The speed control (if activated) only affects circuit 1.
A1... common pump
A2... valve (A2 has power when loading storage tank SP2)

All programs +2: For a pump-valve system between storage tank 1 and storage tank 3.
A1... common pump
A3... valve (A3 has power when loading storage tank SP3)

All programs +4: For a pump-valve system between storage tank 1 (water heater) and storage tank 4 (pool).
A1... common pump
A4... valve (A4 has power when loading storage tank SP4)

All programs +8: If all storage tanks are fully loaded, storage tank SP2 continues to be loaded, regardless of max2.

Diagram 48:

Boiler requirement, two loading pumps and simple solar thermal system

Program 48: Function according to diagram.

Program 49: If the storage tank has reached the maximum temperature by means of the solar thermal system, storage tank loading pump A2 connects to solar pump A1 (recooling function).

All programs +2: The burner requirement from A4 occurs if T2 is below max4, and is deactivated if sensor T3 exceeds max3, whereby max3 is no longer used for storage tank delimiting via the fossil-fuelled boiler.

All programs +4: With this program, three independent differential circuits are realised. Here, storage tank loading from the solid-fuel boiler is controlled by the difference diff2 between the boiler sensor T5 and the upper sensor T2 in the storage tank.
A2 = T5 > min1 & T5 > (T2 + diff2) & T2 < max2

All programs +8: This enables control of two energy generators at a time, on one load. Instead of the burner requirement, output A4 is switched on the basis of difference diff4 between T2 and the storage tank sensor T3. Thus, T2 is available for an additional (fourth) generator, whereby the threshold max4 affects T3.
A4 = T2 > (T3 + diff4) & T3 > max4

64_P48

Diagram 64:

Solar thermal system with two collector panels and two loads

Program 64: As per diagram, with two collector panels and two storage tanks, in which each storage tank is loaded from each panel with separate pumps. No loading pump function!
A1 = T1 > (T3 & diff1) & T3 < max1
A2 = T1 > (T4 & diff2) & T4 < max2
A3 = T2 > (T3 & diff1) & T3 < max1
A4 = T2 > (T4 & diff2) & T4 < max2

Program 66: Instead of the pumps shown in the diagram, valves are used, and the storage tanks are loaded by separate pumps. No loading pump function!
A1 = solar pump – storage tank SP1 A3 = valve collector panel 1
A2 = solar pump – storage tank SP2 A4 = valve collector panel 2
Note: If both valves are closed, the pumps are also blocked.

Program 68: Function according to diagram shown. At rest, A3 switches to storage tank 1.

All programs +1: If the temperature difference between the collector sensors exceeds diff3, the cooler collector is switched off. This largely prevents the cooler collector from 'trying to keep up' as a result of mixing temperatures.
Note: For the time switch, the output specification always refers to the actual output, and for the allocation of priority, it applies to the basic function of program 64.

64_P64

Diagram 80:

Stratified storage tank, loading pump controller and domestic water heating

Program 80: Function according to diagram. The two solar pumps are switched on according to the difference diff1. The three-way valve switches up if T6 exceeds min2, or if it exceeds T2 by diff3, but only if it has not yet reached threshold max3. For domestic water heating, the speed-controlled output A2 is used. Detection of flow is possible with a flow switch (special accessory) in series with sensor T4.T4 is kept constant by means of speed control. If T2 decreases, the set difference (speed control d in the menu) between T2 and T4 is kept constant, in order to avoid mixing in the storage tank as a result of excessive pump speed.

Program 81: If T2 has reached threshold max3, the quick warm-up phase has been completed, and the speed control is thus blocked for optimal efficiency.

Program 82: The speed control is generally blocked if the three-way valve is switched down (A3 = off). In this case, the priority control is active to allow the upper area of the storage tank to be accessed when irradiation is great enough.