Accessories: Solar Thermal Energy

General scheme of solar energy accessories

Heat transfer kits

Power (Kw)DescriptionReference
35Kit with cover box702KIACSTIA

Brazed-plate heat exchangers for DHW

Design conditions

Primary circuit liquid temperature = 60ºC
Secondary circuit liquid outlet temperature = 50ºC
Primary circuit working liquid = propylenglicol 30 %
Secondary circuit working liquid = water

Collectors area (m2)PowerInletsReferenceP.V. P €
28,86 – 15 kW3/4”702PTACS012
4816 – 24 kW3/4”702PTACS020
8425 – 42 kW1”702PTACS035
12043 – 60 kW1”702PTACS050
14461 – 72 kW1”702PTACS060
16873 – 84 kW1”702PTACS070
21685 – 108 kW1”702PTACS090
240109 – 120 kW1 1/4”702PTACS100

Insulations

Insulations up toReferenceP.V. P €
48 m2 collectors702PTAIS020
84 m2 collectors702PTAIS035
144 m2 collectors702PTAIS060
216 m2 collectors702PTAIS090
240 m2 collectors702PTAIS120

Shell-and-tube heat exchangers for swimming pool heating

  • Solar installation power conditions: Input primary circuit T = 50ºC
  • Boiler installation power conditions: Input primary circuit T = 90ºC
  • Maximum flow in tube 15 m3/h

25 kW

45 kW

85 kW

105 kW

Int. Stainless steel heat exchangers for non saline water pools

Collectors area (m2)Solar installation power / Boiler installation powerReference
2- 121 – 6 kW / 25 kW702CT025I05
12 – 357 – 18 kW / 45 kW702CT045I15
35 – 7119 – 36 kW / 85 kW702CT085I30
71 – 8237 – 42 kW / 105 kW702CT105I35

Int. Titanium heat exchangers for saline water pools

Collectors area (m2)Solar installation power / Boiler installation powerReference
2 – 121 – 6 kW / 25 kW702CT025T05
12 – 357 – 18 kW / 45 kW702CT045T15
35 – 7119 – 36 kW / 85 kW702CT085T30
71 – 8237 – 42 kW / 105 kW702CT105T35

PUMPING UNITS

1 way without controller

  • Circulating pump
  • 1 Flow regulator (2 – 12 l/min || 8 – 38 l/min)
  • 1 Thermometer (impulsion)
  • 1 Safety valve (6 bar)
  • 1 Pressure gauge
  • 1 Filling valve and 1 emptying valve
  • 1 Pressure gauge
  • Thermal insulation
DescriptionNet area m2HMAX (m. c. a)PumpInletsReference
Pumping unit 1W – without controller< 25 m26,8Wilo ST 25/6 iPWM¾ ” M704B12L1V070
Pumping unit 1W – without controller< 50 m28,5Wilo ST 25/8 iPWM1” M704B38L1V075

1 way with controller

  • Circulating pump
  • 1 Flow regulator (2 – 12 l/min || 8 – 38 l/min)
  • 1 Thermometer (impulsion)
  • 1 Safety valve (6 bar)
  • 1 Non-return valve
  • 1 Pressure gauge
  • 1 Filling valve and 1 emptying valve
  • 1 Pressure gauge
  • Thermal insulation
  • Controller STDC
DescriptionNet area m2HMAX (m. c. a)PumpInletsReference
Pumping unit 1W – with controller STDC< 25 m26,8Wilo ST 25/6 iPWM¾ ” M704B12L1V170
Pumping unit 1W – with controller STDC< 50 m28,5Wilo ST 25/8 iPWM1” M704B38L1V175

2 ways with controller

  • Circulating pump
  • 1 Flow regulator (2 – 12 l/min || 8 – 38 l/min)
  • 2 Thermometers (impulsion and return)
  • 1 Safety valve (6 bar)
  • 1 Non-return valve
  • 1 Pressure gauge
  • 1 Filling valve and 1 emptying valve
  • 1 Pressure gauge
  • Thermal insulation
  • Controller MTDC
DescriptionNet area m2HMAX (m. c. a)PumpInletsReference
Solar station 2W – with controller MTDC< 25 m26,8Wilo ST 25/6 iPWM¾ ” M704B12L2V170
Solar station 2W – without controller< 50 m28,5Wilo ST 25/8 iPWM1” M704B38L2V075
Solar station 2W – with controller MTDC< 50 m28,5Wilo ST 25/8 iPWM1” M704B38L2V175

2 ways drainback

  • Circulating pump
  • 1 Flow regulator (2 – 12 l/min || 8 – 38 l/min)
  • 2 Thermometers (impulsion and return)
  • 1 Safety valve (6 bar)
  • Without Non-return value
  • 1 Filling valve and 1 emptying valve
  • Thermal insulation
  • Controller MTDC
DescriptionNet area m2HMAX (m. c. a)PumpInletsReference
Solar station 2W – with controller MTDC< 25 m26,8Wilo ST 25/7,5 iPWM1″ M704D12L2V175
Solar station 2W – with controller MTDC< 25 m26,8Wilo Para ST 15/13 iPWM1” M704D12L2V113

Dynamic heat sinks

Models

Heat sinks

Nº CollectorCollectors ModelsDescriptionReference
1 – 4
1 – 5
S26, G26,
S21, G21, P21
8 kW705DI008M
5 – 9
6 – 12
S26, G26,
S21, G21, P21
18 kW705DI018M
10 – 13
13 – 16
S26, G26,
S21, G21, P21
24 kW705DI024M
14 – 21
17 – 26
S26, G26,
S21, G21, P21
40 kW705DI040M
22 – 27
27 – 34
S26, G26,
S21, G21, P21
52 kW705DI052M
28 – 32
35 – 40
S26, G26,
S21, G21, P21
61 kW705DI061M
33 – 40
41 – 50
S26, G26,
S21, G21, P21
76 kW705DI076M
41 – 50
51 – 70
S26, G26,
S21, G21, P21
106 kW *705DI106T
51 – 80
71 – 100
S26, G26,
S21, G21, P21
152 kW *705DI152T
81 – 100
101 – 125
S26, G26,
S21, G21, P21
190 kW *705DI190T
101 – 125
126 – 160
S26, G26,
S21, G21, P21
243 kW *705DI243T
126 – 155
161 – 200
S26, G26,
S21, G21, P21
304 kW *705DI394T

*Heat sinks of 106 kW. 152 kW and 190 kW are triple phase, the rest are single phase

Design conditions

Intake liquid temperature = 90ºC
Intake air temperature = 35ºC
Working liquid propylenglicol 30 %

***Contact technical department for models of a higher power

Static heat sinks

Models

For Thermosiphon kits

Nº CollectorCollectors ModelsDescriptionReference
2S21,T20, T25, P21, S261.750 W705ECT175
DescripcióRef.
Connection for Thermosiphon kits (static heat sinks)211BATCAP3

For collector arrays

Nº CollectorCollectors ModelsDescriptionReference
2S21, G21, P212.500 W705ECF025
2

3

S26, G26,
S21, G21, P21
3.500 W705ECF035
3

4

S26, G26,
S21, G21, P21
4.500 W705ECF045
4

5

S26, G26,
S21, G21, P21
5.500 W705ECF055
5

6

S26, G26,
S21, G21, P21
7.000 W705ECF070
6S26, G268.000 W705ECF080
8S26, G2611.000 W705ECF110
DescriptionRef.
Connection for collectors array (statics heat sinks)211BATCAP2

*Design conditions for heat sinks placed in horizontal position; wind speed 0 m/s ; Δ t =70 ºC; ramp 5%.


* Thermostatic valve included in the heatsink

Circulation Pumps

For primary circuits: Simple Pumps

For primary circuits: Double Pumps

For secondary circuits: Simple Pumps

VALVES

High-flow thermostatic mixing valves

With non-returns

DescriptionReferencia
Thermostatic mixing valve 1 1/4″708TMZ114CAR
Thermostatic mixing valve 1 1/2″708TMZ112CAR
Thermostatic mixing valve 2″708TMZ200CAR

Without non-returns valves

DescriptionReferencia
Thermostatic mixing valve 1 1/4″708TMZ114CAR
Thermostatic mixing valve 1 1/2″708TMZ112CAR
Thermostatic mixing valve 2″708TMZ200CAR

3 Ways motorized valves

For primary circuits

DescriptionReference
1/2’’ (Tmax 160 ºC)708ZN3V012H
3/4’’ (Tmax 160 ºC)708ZN3V034H
1’’ (Tmax 160 ºC)708ZN3V100H
1 1/4’ (Tmax 150 ºC)708ZN3V114H
1 1/2’’ (Tmax 150 ºC)708ZN3V112H
2’’ (Tmax 150 ºC)708ZN3V200H

Static balance valve

DescriptionReference
1/2″H kv 0,1-4,47 m3/h DN15708EQES012H
3/4″H kv 0,13-5,9 m3/h DN20703COWMZ015
1″H kv 0,17-8,52 m3/h DN25708EQES100H

Thermostatic mixer valve

According toUNI EN 1111
Temperature range30-55ºC
Max. operating pressure10 bar
Max. inlet temperature100 ºC
Flow at a 3 bar38 l/min
Minimum flow10 l /min
DescriptionReference
Body 1 “708TMZ100CT
Body 1″ with non-return fittings 3/4″708MZ03CAT

Solar Controllers

  • 2 Temperature sensor inputs PT1000
  • 1 Relay output 230VAC (on/off)
DescriptionRef.
Termicol 400S with 2 probes (1 relay 10A, sond PTC2000)703C7400S02

XTDC-V1

  • Temperature sensor inputs PT1000 
  • 1 Relay output 230VAC (on/off)
  • 1 PWM output (high efficiency pumps speed control) 
  • 9 Hydraulic options 
DescriptionRef.
Termicol STDC with 2 probes703C1STDC32

XTDC-V1

  • 8 Temperature sensor inputs PT1000
  • 2 Grundfos VFS/RPS sensor input
  • 1 inlet for RC21 environment sensor
  • 2 PWM output (high efficiency pumps speed control)
  • 2 Speed control connections
  • 4 Relay output 230VAC (on/off)
  • Micro SD Memory Card Slot
  • Ethernet connection (model V2)
  • 48 Hydraulic options
DescriptionRef.
Termicol XTDC with optional probe703C1XTDC10

LTDC-V3

  • 6 Temperature sensor inputs PT1000
  • 2 VFS/RPS Directsensor inlets for flow measuring
  • 2 Relay output 230VAC (on/off)
  • 2 PWM output (high efficiency pumps speed control)
  • 42 Hydraulic options
DescriptionRef.P.V. P €
Termicol MTDC with 3 probes703C1MTDC53

MTDC-V5

  • 4 Temperature sensor inputs PT1000
  • 2 Relay output 230VAC (on/off)
  • 1 PWM output (high efficiency pumps speed control)
  • 25 Hydraulic options
DescriptionRef.
Termicol LTDC with 4 probes703C1LTDC34

Filling and draining systems

Digital equipment

Nº CollectorDescriptionReference
6 – 15120 l.712LLVD0120
16 – 25200 l.712LLVD0200
26 – 35300 l.706VAC300
36 – 50500 l.706VAC500
51 – 1201.000 l.706VAC0900

Electronic equipment

Nº CollectorDescriptionReference
1 – 650 l.712LLVE0050
7 – 15120 l.712LLVE0120
16 – 25200 l.712LLVE0200
26 – 35300 l.712LLVE0300
36 – 50200 l.712LLVE0500
51 – 120200 l.712LLVE1000

Filling systems

EquipmentDescriptionReference
Manual equipment50 l.712LLEM050
120 l.712LLEM120
50 l.712LLE0050
Electronic equipment120 l.712LLE0120
200 l.712LLE0200
300 l.712LLE0300
500 l.712LLE0500
1.000 l.712LLE1000
Digital equipment120 l.712LLD0120
200 l.712LLD0200
300 l.712LLD0300
500 l.712LLD0500
1.000 l.712LLD1000

Heat transfer fluid

Concentrated antifreeze “Fluidosol”Reference
2 l.707CGF0002
10 l.707CGF0010
25 l.707CGF0025
210 l.707CGF0210
1.000 l.707CGF1000

Expansion systems

Expansion vesselPrimary circuitsACS / DHW / AQS
SolarHeaterIntermediate
Ref.P.V. P €Ref.P.V. P €Ref.P.V. P €Ref.P.V. P €
5 l.706VCR005706VIN005
8 l.706SOL008706VCR008706VIN008706VAC008
12 l.706SOL012706VCR012706VIN012706VAC011
18 l.706SOL018706VCR018706VIN018706VAC018
24 l.706SOL024706VCR024706VIN024706VAC024
35 l.706SOL035706VCR035706VIN035706VAC035
50 l.706SOL050706VCR050706VIN050706VAC050
80 l.706SOL080706VCR080706VAC080
100 l.706SOL0100706VCR100706VIN100706VAC100
140 l.706VCR140706VAC150
200 l.706SOL220706VCR200706VIN200706VAC200
250 l.706VCR250
300 l.706SOL350706VCR300706VIN300706VAC350
400 l.706VCR400
500 l.706SOL500706VCR500706VAC500
600 l.706VCR600
700 l.706SOL700706VAC700
800 l.706VCR800
Connection kit704SETCGB704SETCGB704SETCGB

Probes

DescriptionReference
Contact temperature probe PT1000703SDPT1000C
Temperature probe PT1000703SDPT1000

Energy meters

FlowDiameterN. of probesReference
0,6 m3/h¾ ”2703COWMZ006
1,5 m3/h¾ ”2703COWMZ015
2,5 m3/h¾ ”2703COWMZ025
3,5 m3/h1”2703COWMZ035
6,0 m3/h1”2703COWMZ060
10,0 m3/h1 ½ ””2703COWMZ100
15,0 m3/h1 ½ ”2703COWMZ150

Electric kits

OutputVoltageDiameterReference
2kWSingle-phase 230 V1 ¼ ”711KFK2000M
3kWSingle-phase 230 V1 ¼ ”711KFK3000M
4,5kWThree-phase 400 V1 ½ ”711KFK4500T
6kWThree-phase 400 V1 ½ ”711KFK6000T
9kWThree-phase 400 V1 ½ ”711KFK9000T
12kWThree-phase 400 V2 ”711KFK12000T
15kWThree-phase 400 V2 ”711KFK15000MC
18kWThree-phase 400 V2 ”711KFK18000MC