Electrical air heater

DHP 25-16

Article number: 0082.0093
Manufacturer: MAICO
Electric air heater, three-phase AC, channel dimensions 500 mm x 300 mm

Product data sheet
DHP 25-16 IM0009880.PNG Electric air heater, three-phase AC, channel dimensions 500 mm x 300 mm

Characteristic curve

DHP 25-16 - Characteristic curve Pressure losses

  1. DHP 25-16
  2. DHP 22-9, DHP 28-16, DHP 28-28
  3. DHP 31-28
  4. DHP 31-16

DHP 25-16 - Characteristic curve Temperature rise

Dimensioned drawing

DHP 25-16 - Dimensioned drawing [mm]

A: 500 mm
B: 300 mm
C: 520 mm
D: 320 mm
E: 639 mm
F: 338 mm

Technical data

DHP 25-16 - Technical data

Article DHP 25-16
Min. flow velocity 1,5 m/s
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Imax 23,1 A
Degree of protection IP 43
Installation Inside
Installation site Channel
Installation position horizontal / vertical
Housing material Sheet steel, galvanised
Weight 13,59 kg
Weight including packaging 15,05 kg
Channel dimension 500 mm x 300 mm
Width 639 mm
Height 338 mm
Depth 370 mm
Width with packaging 695 mm
Height with packaging 410 mm
Depth with packaging 400 mm
Air heater type electrical
Heater power rating 16.000 W
Packing unit 1 piece
Range D
GTIN (EAN) 4012799820932
Article number 0082.0093

Accessories / Accessories of

DHP 25-16 - Accessories / Accessories of

Specific accessories

General accessories

Product type Name Art. No. Price*(EUR) Action
Contactor US 16 T 0157.0769 on request
  • On the notes

is a general accessory of

Product type Name Art. No. Price*(EUR) Action
Channel fan EPK, DPK 500 x 300 channel fans - - -

Product description

Productdescription

DHP 25-16

short description

Electric air heater, three-phase AC, channel dimensions 500 mm x 300 mm

Product description

  • Electrical air heater for ventilation systems.
  • Flanges on both sides for installation in square ventilation channels.
  • With non-glowing stainless steel tubular radiators.
  • Heater power rating linearly adjustable.
  • Operate with DTL 24 P temperature control system (see accessories).
  • Recommended accessories: FL channel sensor or FR room sensor, LW 9 air flow monitor, TFP ... air filter, US 16 T contactor, DTL 2 P-L (at 16.5 kW to 30 kW).

Installation instructions

  • Mount the water-air heater on the fan's pressure side in order to prevent fan motor overheating. An arrow marked on the housing shows the default air direction through the electrical air heater.
  • Mount a 1 m to 1.5 m long air duct fitting between fan and electrical air heater to ensure optimum inflow to the electrical air heater.
  • Inflow speed can be controlled using an LW 9 air flow monitor.
  • If the inflow speed falls below 1.5 m/s, the electrical air heater must be switched off.

Safety instructions

  • Increased danger of fire if tubular radiators are dirty. Install TFP air filter.
  • With 2 temperature limiters switching independently of each other.
  • Minimum distance to inflammable material: 300 mm (if distance is less, install appropriate insulation).

Table of contents

Wiring diagram

DHP 25-16 - Wiring diagram

DHP with EPK / DPK and DTL 24 P

S1 system off

S2 system on

L1 control light system on

K1 contactor US 16

K2/K3 contactor to be supplied by the customer

DPK..B centrifugal fan, DPK model series

EPK..B centrifugal fan, EPK model series

LW 9 air flow monitor (relay picks up with air flow)

DHP.. DHP 28-28.31-28 air heater

F1 temperature limiter

F2 safety temperature limiter

DTL 24 P electronic temperature controller

DTL 2 P-L basic power board for DTL 24 P

P1 setpoint generator DTL 24 P

S3 night reduction 4 K

FR 30 P room sensor with external setpoint generator

FL 30 P supply air channel sensor



DHP with EPK / DPK and DTL 24 P

S1 system off

S2 system on

L1 control light system on

K1 contactor US 16

K2/K3 contactor to be supplied by the customer

DPK..B centrifugal fan, DPK model series

EPK..B centrifugal fan, EPK model series

LW 9 air flow monitor (relay picks up with air flow)

DHP.. DHP 28-28.31-28 air heater

F1 temperature limiter

F2 safety temperature limiter

DTL 24 P electronic temperature controller

DTL 2 P-L basic power board for DTL 24 P

P1 setpoint generator DTL 24 P

S3 night reduction 4 K

FR 30 P room sensor with external setpoint generator

FL 30 P supply air channel sensor



Predecessor - successor

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