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
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.
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.
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.
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.
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.
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.
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.
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.
When controls are supplied they are already factory commissioned & operational.
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.
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 |
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 |
AT |
AT |
AT |
AT |
ADN |
ADN |
ADN |
ADN |
ADN |
ADN |
ADN |
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 |
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 |
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 |