DHP 31-28 - Characteristic curve Pressure losses
- DHP 25-16
- DHP 22-9, DHP 28-16
- DHP 31-28
- DHP 31-16
Electrical air heater
DHP 31-28
Manufacturer: MAICO
Electric air heater, three-phase AC, channel dimensions 600 mm x 350 mm
Product data sheet
Characteristic curve
Dimensioned drawing
DHP 31-28 - Dimensioned drawing [mm]
A: 600 mm
B: 350 mm
C: 620 mm
D: 370 mm
E: 739 mm
F: 388 mm
B: 350 mm
C: 620 mm
D: 370 mm
E: 739 mm
F: 388 mm
Technical data
DHP 31-28 - Technical data
Accessories / Accessories of
DHP 31-28 - Accessories / Accessories of
Specific accessories
| Product type | Name | Art. No. | Price*(EUR) | Action |
|---|---|---|---|---|
| Air filter | TFP 31 | 0149.0034 | on request | |
| Air filter | TFP 31-7 | 0149.0070 | on request | |
| Temperature control system | DTL 24 P | 0157.0586 | on request | |
| Power board | DTL 2 P-L | 0157.0587 | on request | |
| Channel sensor | FL 30 P | 0157.0780 | on request | |
| Room sensor | FR 30 P | 0157.0781 | on request | |
| Air flow monitor | LW 9 | 0157.0779 | on request |
General accessories
is a general accessory of
| Product type | Name | Art. No. | Price*(EUR) | Action |
|---|---|---|---|---|
| Channel fan | DPK 31 EC | 0086.0802 | on request | |
| Sound-insulated channel fan | DSK 31 EC | 0086.0803 | on request | |
| Sound-insulated channel fan | DSK 31-S EC Discontinued product | 0086.0805 | on request | |
| Sound-insulated channel fan | DSK 31/1-S EC New development | 0086.0814 | on request | |
| Channel fan | DPK 31/4 B No longer available for delivery | 0086.0667 | on request |
Product description
Productdescription
DHP 31-28
short description
Electric air heater, three-phase AC, channel dimensions 600 mm x 350 mmProduct 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).
Wiring diagram
DHP 31-28 - 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
Downloads / Videos
DHP 31-28 - Downloads / Videos
Predecessor - successor
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