HEIZER SOLAR offers a wide range of controllers for monitoring the system and here are some of our controllers.

Controllers

DeltaSol CS Plus

Input: 4 Pt 1000 temperature sensors.

  • 1 VFD Grundfos direct sensor.
  • 2 PWM feedback inputs.

Output: 2 semiconductors relays.

  • 2 PWM outputs.

Functions:

  • heat quantity measurement
  • Operating hours counter
  • Thermostat function.
  • Pump speed control.

DeltaSol AL

Input: 3 Pt 1000 temperature sensors.Output: 1 electromechanical relay with change.

Functions:

  • Heat quantity measurement
  • Operating hours counter.
  • Thermostat Function

DeltaSol BX Plus

Input:

  • 5 Pt 1000 temperature sensors.
  • 1 V40 impulse input.

Output:

  • 1 electromechanical relay.
  • 3 semiconductors relay.
  • 2 PWM outputs.

Functions:

  • heat quantity measurement
  • Operating hours counter
  • Thermostat function.
  • Pump speed control.
  • Store loading in layers.
  • Heat dump function.

DeltaSol MX

Input:

  • 12 Pt 1000, Pt 500 or KTY temperature sensor inputs.
  • 3 impulse inputs for V40 flow meters.
  •  1 input for a flow rotor.
  • 1 CS 10 solar cell.
  • 4 Grundfos direct sensors (2*digital)

Output:

  • 14 relays (13 of them semiconductors relays for pump speed control)
  • 1 potential free relay.
  • 4 PWM outputs (convertible to 0 – 10 V signal outputs)

Functions:

  • The control according to BAFA guidelines.
  • Balance & Diagonistics function.
  • Adjustable system parameters & add-on options (menu – driven).

Pump Stations

DeltaSol CS Plus

Application Range: up to 175 m²

Operating data:

Maximum Pressure 6 bar
Maximum Operating Temperature 120°C
Low-flow=0.25 l/minute per m² of collector surface Up to … m² of collector surface
High-flow=0.5 l/minute per m² of collector surface Up to … m² of collector surface
Technical Data
Equipment Dimensions Materials
Airstop Yes Nominal Diameter DN 20( ¾ “) Valves and fittings Brass
Check Valves 3x200 mm wc Connections ¾ “ internal thread Gaskets AFM34 / EPDM
Flowmeter 3-22 l/min (1)Width 548 mm Insulation EPP
Pressure relief valve 6 bar (2)Centre Distance 100 mm / 251 mm Check Valves Brass
Pressure Gauge 0-6 bar, temperature-resistant (3)Height 493 mm    
  (4)Installation Length 418 mm    
    Depth 152 mm    

Hydraulic Scheme, Differential Pressure Diagram

A three-line station can be used in systems with independently working collector fields (2-roof systems). For circulation in the two collector fields, the controller switches between the pumps. This assembly enables a parallel operation of both collector fields.

Differential Pressure Diagram

Recirculation Pumps

HEIZER SOLAR Instant Hot Water Recirculating System brings convenience and savings to your home, giving you hot water instantly as close to the consumption point as possible at every faucet or shower when you need it in order to reduce water wastage.

Benefits

  • Instant hot water to every faucet or shower.
  • Great savings for Municipality water per year.

Features

  • Maintenance free.
  • 24-hour programmable timer actives system only when you need it.
  • Pump mounts directly onto a water heater with ¾” connections.
  • Can be used with all types of pipe.
  • Extremely quiet (No vibrations).
  • Do not use with tankless water heaters.

Normally, uncontrolled pumps are used as the flow variation is relatively small. In large systems, however, it may be advantageous to use controlled pumps to enable adjustment of the flow when starting up the system and to be able to apply temperature control.

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