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Products  |  Thermal Engineering and HVAC  |  Heating and Ventilation in Buildings  |  HL 630
HL 630 Efficiency in Heating Technology Show data sheet (pdf file) Print page
HL 630 - A product from the GUNT 2E range
Technical Description

  The trainer contains a complete closed heating circuit with circulating pump, electrical heater, convector for dissipating heat, various pipe sections, fittings and safety devices.

  The losses of the most important fittings can be determined using seven differential pressure sensors. Control response and energy flux can be plotted using four temperature sensors, a flow rate sensor and an effective power sensor. The characteristics of a conventional circulating pump and a differential pressure controlled circulating pump can be compared.

   The measured values are transmitted directly to a PC via USB and can be processed with the supplied software. Both circulating pumps, the heater and the convector fan can be controlled via PC.

Learning Objectives / Experiments

- familiarisation with a heating circuit

- familiarisation with temperature control
  * two-point controller

  * PID controller
  * recording of step response

- recording of fitting and pump characteristics

- energy balances

- determining pump efficiency from hydraulic power
  and electrical power consumption

- heat transfer with convector (water-to-air heat

  exchanger with fan)

- comparison of circulating pumps

  * conventional pump

  * differential pressure controlled pump 


* Trainer with closed heating circuit1
* Trainer on mobile frame1

* Pumps, heater and convector fan, controlled via PC

Alternative products
HL 107 -- Circulating Pumps Training Panel
HL 210 -- Losses in Pipe Systems and Fittings

[1] fundamentals of energy efficient heating technology

[2] closed water circuit with 2 circulating pumps, expansion vessel, heater and convector

[3] 2-point and PID software controller for temperature: reference variable, hysteresis and PID parameters adjustable

[4] boiler safety group according to DIN 4751

[5] 7 differential pressure sensors, 4 temperature sensors, 1 effective power sensor and 1 flow rate sensor

[6] GUNT software with control functions and data acquisition via USB under Windows Vista or Windows 7


Technical Data

Conventional circulating pump, 3 stages

- power consumption: 43...80W

- max. flow rate: 3,7m/h

- max. head: 6,2m

Differential pressure-controlled circulating pump

- power consumption: 4...50W

- max. flow rate: 3,5m/h

- max. head: 6m


Electric heater: 2.000W
Expansion vessel: 2L


Software controller
- adjustable reference variable: 0...80C


Measuring ranges

- differential pressure: 5x 0...600mbar, 2x 0...100mbar

- temperature: 0...100C

- flow rate: 1...50L/min

- effective power: 0...200W

Dimensions and Weight
LxWxH: 2.000x750x1.760mm
Weight: approx. 150kg
Required for Operation
230V, 50Hz, 1 phase
Scope of Delivery

1 trainer

1 GUNT software CD + USB cable

1 manual

Order Details

065.63000  HL 630  Efficiency in Heating


© 2005 G.U.N.T. Gerätebau GmbH