VENTS - manufacture of ventilation and air conditioning systems

PR series for rectangular ducts

PR series for rectangular ducts

PR plate heat exchanger with X-shaped air passage designed for exhaust air heat recovery in conditioning and ventilating systems.


Description

Applications

PR plate heat exchanger with X-shaped air passage designed for exhaust air heat recovery in conditioning and ventilating systems. The heat exchangers are connected directly to the rectangular ducts both with parallel and perpendicular or diagonal ducting at 45°. Various connection modification are possible due to bend fittings which shall be ordered in the required quantity. The transported air shall not contain solid, fibrous, aggressive and explosive impurities.

Design

The heat exchanger casing is made of galvanized steel. The surface of the heat exchanger appears as a package of thin aluminium plates to ensure the efficient heat exchange. Provision is made for collecting some quantity of the condensate which tends to appear at exhaust surface at the bottom removable panel. PR heat exchangers equipment list includes connecting pipe on the bottom panel for condensate removing.

Technical data

Efficiency is the basic characteristics of the plate heat exchanger, i.e. performance as well as air resistance in the duct.

The thermal efficiency is calculated as follows:

,


ts - supply air temperature after heat recuperation;
ti - intake air temperature before heat recuperation;
te - extract air temperature before heat recuperation.

Possible layout arrangements of PR heat exchanger and bends PK:

Accessories

1. PK bend

Designed for easy mounting of the heat exchanger in any modifications of the air duct.
Bend designation PK 600 х 300

Type   Dimensions [mm]   Weight [kg]
  B   B1   B2   H   H1   H2  
PK 400x200
  400   420   440   200   220   240   2.2
PK 500x250
  500   520   540   250   270   290   3.3
PK 500x300
  500   520   540   300   320   340   3.5
PK 600x300
  600   620   640   300   320   340   4.5
PK 600x350
  600   620   640   350   370   390   4.7
PK 700x400   700   720   740   400   420   440   5.9
PK 800x500   800   820   840   500   520   540   7.5
PK 900x500   900   920   940   500   520   540   8.7
PK 1000x500   1000   1020   1040   500   520   540   10.3

2. Summer block VL

For the summer period the heat exchanger can be replaced with the summer block VL which performs no heat recovery but reduces pressure loss by 10%. It is applied in systems without by-pass at the inlet and in systems with no cooling.

Legend

Series   Flange designation (WxH), mm

PR
PK

  400х200; 500х250; 500х300; 600х300; 600х350; 700х400; 800х500; 900х500; 1000х500

VL

  400х200; 500х250; 500х300; 600х300; 600х350; 700х400; 800х500; 900х500; 1000х500

2015

Technical support

E-mail

Please, feel free to contact us.

support@vents.ua

Phohe

Customer service.

+380 44 406 36 25

Contact information

Ukraine, 08150, Boyarka,
st 40 years of October, 36