HPI is currently affected by the Covid-19 lockdown in South Africa.
Our administrative staff and the manufacturing ability are currently closed. Our new business, engineering and maintenance teams are operating within the limits of the lockdown.
HPI will attend to emergency breakdowns.
For any emergencies please contact or whatsapp Johan Coetsee on 083-677-0896 or email johan.coetsee@heatpump.co.za.
Stay safe, stay strong and stay at home.
Follow this link to the official SA Government coronavirus website: www.sacoronavirus.co.za

AHU Section

The unit casing is manufactured from non-toxic flame retarding, steam expanded polystyrene insulating material 25 to 45mm thick which meets with the requirements of ZERO ODP, with an inner and outer covering of 0.6mm Chromadek steel. Stainless-steel inners/outers can be fitted on request. The casing is assembled using anodised aluminium sections. Access doors are provided for easy access to all serviceable components of the AHU. These doors are fixed with aluminium hinges and are fastened with rugged glass reinforced nylon cam-locks, fitted with handles. Nylon square key cam-locks are also fitted standard on fan access doors for safety & security reasons. Where requested locks can be fitted keyed-alike.

Fan

The supply fan is either a Nicotra FCC or BCC fan which, together with the fan motor is mounted on a common frame/base & fan discharge opening sealed into a flexible canvas collar. Suitably sized pulleys are then selected & fitted in consultation with the approved computer generated fan selection.

All supply fan motors are suitable for speed control & will be wired to terminal boxes located on the exterior of the units unless switchboards are purchased.

Cooling Coil

The chilled and/or hot water coils, designed for counter flow & selected in accordance with ARI standards, are manufactured from aluminium fins, bonded to copper tubes & fixed into a galvanised coil casing. Copper fins & stainless steel frames are optional extras. Coils are positioned in stainless steel 304 drip trays complete with a 32mm MPT drain connection penetrating through the unit casing. Coils are sized to provide a maximum face velocity of 2.5m/s & come with an air bleed & drain fitting which fall over the drip tray.

Heater Bank

Electrical heater banks are installed to supply heating when required. The elements are manufactured from 3.2 Watt/cm² Incaloy and are fitted onto a sheet metal terminal box. The elements are removable as a single assembly. This removable assembly incorporates the element mounting plate and terminal cover. An auto overheat protection is also fitted onto this assembly as standard.



Filters

Primary Filters

Standard washable removable 50mm primary filters are normally installed into appropriately sized galvanized holding frames on the air entering side of the cooling coil. 100mm depths are also available. Filter frames are "flashed", using 1.6mm galvanised sheet metal, to unit casings for rigidity & air bypass prevention. Furthermore filter banks are reinforced with 5mm flat bar lengths in anticipation of strong forces when filters become dirty.

Initial Resistance - Approx. 65Pa
Final Resistance - Approx. 250Pa

Primary filters are generally selected to produce a face velocity of not more than 2.5m/s.



Secondary Filters

Where required bag or rigid cassette type secondary filters, EU9 rating, are installed into common filter frames with the primary filters. Bag filters typically vary in length from 300-600mm & manufactured with 6 to 8 "pockets" depending on filter size. A gasket will be installed between primary & secondary filters when a common frame is shared.

Stand alone dedicated secondary filter banks are also installed depending on the nature of unit design & application.

Initial Resistance - Approx. 135Pa
Final Resistance - Approx. 400Pa

Secondary filters are generally selected to produce a face velocity of not more than 2.5m/s.



Tertiary Filters

Where specified, high efficiency particle arrestor (HEPA) filters with an EU11 rating shall be fitted down-stream of the cooling coil. HEPA filter holding frames are to be manufactured from powder coated 1.6mm tubular steel and flashed and sealed to the unit casing in such a manner that there is zero bypass of unfiltered air. The HEPA filters are to be fastened into these frames using clamps and seals but are not to be fitted into the A/C unit until the interior of the unit as well as all ducting has been blown clean. The fitting & particle count testing of these filters is carried out by others on site.

Industry standard Dwyer Differential Magnehelic Pressure Gauges are installed across each filter bank for spot inspections.

Initial Resistance - Approx. 250Pa
Final Resistance - Approx. 500Pa

HEPA filters are generally selected to produce a face velocity of not more than 2.5m/s.
HEPA filters are always supplied loose, still sealed in their original cartons, for fitting by others on site.

Electrical Switchboards

Switchboards are fabricated from 1.6mm electro galvanised sheet metal, primed & spray painted electric orange & recess, or surface mounted, into unit casings with outer doors of the same material as the unit. The inner door houses the alpha numeric controller display, plant control switch, run/fault pilot lights & main isolator handle/s. Ammetres & voltmetres are optional extras. Each switchboard incorporates door interlocking isolators, short circuit protection, contactors & overloads for the safe & efficient operation of the A/C unit.

Temperature Control

When controls are supplied they are already factory commissioned & operational.

Installation

The unit must be handled with care. Rough handling and dirty site conditions may damage coil fins and internal components as well as cause external damage to the casings.

The unit should be mounted on a firm, level surface, preferably on a 50-100mm high concrete plinth. The plinth, apart from raising the unit and base above standing water and ensuring a positive fall on the condensate drain, will also absorb all minor vibrations. A 150mm deep P-trap on the condensate drain is to be installed by the A/C contractor. These units are virtually vibration-free but, if desired, TECO pads can also be fitted under the feet of the unit.

Allow sufficient room around the unit for access as well as space to open access doors and to remove filters and other equipment.

Duct and pipe connections should be "self-supporting" and not place stress on the unit.

Connections to the Essential and Non-essential electrical supply and to the supply and return air ducting and external wiring are not included. The remote panel, if required must be installed by the contractor.

Performance and Specifications

Model 040HH
Reference  
Supply Air Volume l/s 4440
Ext. Static Pa 250
Fan Static Pa 600
Fan Type FCC 560
Fan Motor kW 5.5
On coil °C DB / °C WB °C 24°C DB/18°C WB
Supply air °C DB / °C WB °C 10°DB/9°C WB
Total Cooling kW 105
Altitude masl Sea level
Electric heating kW 2x15kW
Humidifier Kg/hr 15
Power supply A 11A 380Vac
Filter Media EU 2-stage
Filter quan / size 6 600x600
Length / Depth mm 3 000
Width mm 2 100
Height mm 1 400

View PDF - Models 0075 HH - 065 HH in 25mm chilled water units
View PDF - Models 0075 VV - 065 VV in 25mm chilled water units
View PDF - Models 070 HH - 200 HH in 45mm chilled water units



25mm


Heat Pump International Therm-O-Pac Air-handling Units
Modular 25mm Double skin Horizontal Draw-through
Models:- DS25 0075 HH - DS25 065 HH


Model DS25

0075HH

013HH

015HH

020HH

025HH

030HH

040HH

045HH

050HH

055HH

060HH

065HH

Supply Air Volume

l/s

750

1250

1500

2000

2500

3000

3750

4500

5000

5400

6000

6750

 

 

Heating to customer specs

Unit Dimensions

 

Units supplied to customer specs.  The following table gives examples of dimensions applicable to standard loads, but these may be tailored to suit

Fan

 

AT
9/9

AT
12/12

AT
12/12

AT
15/15

AT
18/18

ADN
450

ADN
500

ADN
500

ADN
560

ADN
560

ADN
630

ADN
710

Fan Static

Pa

450

450

450

450

450

450

500

500

500

500

500

500

Filter Quantity

 

1

2

2

4

4

4

6

6

8

6

8

9

Filter Height

mm

500

500

600

500

500

500

500

600

600

600

600

600

Filter Width

mm

600

500

500

500

500

600

500

500

500

600

500

500

Unit Depth

mm

1160

1290

1290

1390

1500

1540

1500

1520

1520

1520

1900

2020

Unit Width

mm

840

1210

1260

1200

1340

1540

1840

1810

2340

2100

2300

1810

Unit Height

mm

680

720

760

1070

1140

1140

1160

1370

1160

1370

1410

2060

Unit Mass

kg

120

150

160

187

259

265

525

595

635

685

725

780




Note:
1. AHUs are fitted with resilient fan connections and rubber fan mounts.
2. All AHUs are manufactured as one unit.
3. If Mixing boxes are required add 600mm to depth, or use the Return or Fresh air connections plus 150mm, whichever is the greater.
4. Galvanised welded steel bases can also be offered. These bases are usually 165mm high.
5. 25mm Panels are not recommended for use where the fan pressure exceeds 800 Pa or when the units are mounted out of doors. Use 45mm.
View PDF


25mm

Heat Pump International Therm-O-Pac Air-handling Units
Modular 25mm Double skin Vertical Draw-through
Models:- DS25 0075 VV - DS25 065 VV


Model DS25

0075VV

013VV

015VV

020VV

025VV

030VV

040VV

045VV

050VV

055VV

060VV

065VV

Supply Air Volume

l/s

750

1250

1500

2000

2500

3000

3750

4500

5000

5400

6000

6750

 

 

Heating to customer specs

Unit Dimensions

 

Units supplied to customer specs.  The following table gives examples of dimensions applicable to standard loads, but these may be tailored to suit

Fan

 

1 x 9"

1 x 12"

1 x 12"

1 x 15"

1 x 15"

2 x 12"

2 x 15"

2 x 15"

2 x 15"

2 x 18"

2 x 18"

2 x 18"

Fan Static

Pa

550

550

550

550

550

550

550

550

550

550

550

550

Filter Quantity

 

1

2

2

4

4

4

6

6

8

6

8

8

Filter Height

mm

500

500

600

500

500

500

500

600

600

600

600

600

Filter Width

mm

600

500

500

500

500

600

500

500

500

600

500

600

Unit Depth

mm

550

680

680

760

760

680

760

760

760

900

900

900

Unit Width

mm

850

1220

1270

1160

1290

1650

1850

1850

2330

2155

2275

2625

Unit Height

mm

1400

1500

1600

2000

2060

2000

2120

2350

2120

2460

2460

2460

Unit  Mass

kg

125

140

165

220

275

330

425

510

566

610

680

765





Note:
1. All AHUs are fitted with resilient fan connections and rubber fan mounts.
2. Fans are FCC DIDW as standard. BCC DIDW fans can also be offered although dimensions and specs. May change. Refer technical office.
3. All AHUs manufactured in one section although site assembly can be offered.
4. Mixing boxes can be fitted.
5. Galvanised welded steel bases can also be offered.
6. 25mm Panel units are not recommended for use when fan pressures exceed 800 Pa or when units are mounted out of doors. Use 45mm panels.

View PDF


45mm

Heat Pump International Therm-O-Pac Air-handling Units
Modular 45mm Double skin Horizontal Draw-through
Models:- DS45 070 HH - DS45 200 HH

Model DS45

070 HH

075 HH

080 HH

090 HH

100 HH

110 HH

120 HH

125 HH

140 HH

150 HH

160 HH

180 HH

200 HH

Supply Air Volume

l/s

7 200

7 500

8 100

9 000

10 800

11 250

12 000

12 500

14 400

15 000

16 200

18 000

21 600

 

 

Heating to customer specs

Unit Dimensions

 

Units supplied to customer specs.  The following table gives examples of dimensions applicable to standard loads, but these may be tailored to suit

Fan

 

710

710

710

710

710

710

800

800

900

900

900

1000

1000

Fan Static

Pa

550

550

550

550

550

550

550

550

550

550

550

550

550

Filter Quantity

 

8

12

9

12

12

12

16

20

16

20

18

20

24

Filter Height

mm

600

500

600

600

600

600

500

500

600

500

600

600

600

Filter Width

mm

600

500 *

600

500 *

600

500 *

600 *

500 *

600

600*

600

600

600

Unit Depth

mm

2300

2300

2300

2300

2300

2300

2500

2500

2700

2900

2900

3000

3000

Unit Width

mm

2770

2370

2170

2370

2770

2870

2870

2970

2770

3470

3800

3370

3970

Unit Height

mm

1690

1880

2180

2180

2180

2180

2280

2280

2780

2620

2280

2780

2780

Mixing Box Length

mm

1050

1000

920

1000

1150

1200

1200

1250

1200

1275

1550

1400

1650

Unit Weight

kg

818

852

920

1023

1500

1890

1213

1265

1455

1515

1640

1820

2185



Note:
1. AHUs are fitted with resilient fan connections and Spring fan mounts.
2. All AHUs are manufactured as one section.
3. AHUs are manufactured with an Integral Aluminium Base.
4. The above dimensions are for FCC DIDW fans. BCC DIDW fans can also be provided but dimensions and specs. May change
     - refer to technical office.
* No Secondary filters can be fitted. Select an AHU with 600 x 600 filters.

View PDF