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 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 'CONTAINER' type locking mechanisms which secure the doors top and bottom. All doors are fitted with padlocks before despatch from our factory.

Fan

The supply fan is either a Nicotra FCC or BCC fan which, together with the fan motor is mounted on a common frame supported by suitably selected rubber or spring anti vibration mountings. The fan discharge opening is sealed into a flexible canvas collar. Correctly sized pulleys are then selected & fitted in consultation with the approved computer generated fan selection.

Cooling Coil

Multi circuited evaporator coil/s, matching the compressor quantity, cools the supply air. The coil is traditionally "face split" circuited which provides the most flexibility for temperature & humidity control. Special "row split" and "interlaced" coil circuiting (entire coil face is active during cooling) is also available for applications with special features & requirements.

Heater Banks

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

A washable primary filter bank is installed upstream of the DX coil and the fan and motor. Industry standard 0-250Pa Dwyer Differential Magnehelic Pressure Gauges are installed across each filter bank for spot inspections.

Compressors

Up to 12 hermetic compressors of equal capacity are fitted. Each compressor is fitted with service valves and a crankcase heater. When semi hermetic compressors are employed, a twin compressor arrangement normally meets the specified cooling requirement.

Condenser Coil

A multi circuited condenser coil, matching the compressor quantity, condenses the refrigerant. This coil is also traditionally “face split” circuited & configured in such a way with condenser fans for optimum energy conservation & efficiency. Air cooled condenser coils can be roof mounted, should space be limited, or remotely installed depending on space availability & client preferences.

Condenser Fans

Direct driven CFW (Continental Fan Works) axial condenser fans, mounted in 2mm thick hot dipped galvanised casings, are fitted to condenser coils. Thanks to the 6 pole motors & impeller design these fans are ideally suited to noise sensitive environments & high performance. Each fan is complete with a hot dipped grill for personnel safety & keeping impellers free from debris.

Automatic HP switches on each refrigeration circuit govern how many fans should be operational providing up to 3 steps of head pressure control on large condensers. The circuit requiring the most cooling dictates fan cycling.

Refrigeration Components and Controls

Refrigeration circuits are complete with traditional components such as driers, sight glasses, thermal expansion valve, suitably positioned hand shut-off valves & electronically operated solenoid valves for compressor pump down sequences. Compressor pump down is one of the most effective ways to protect compressors from off-cycle migration of liquid refrigerant. HP/LP safety cut outs & head pressure control are also included. All units are fitted with remote monitoring equipment to allow us to monitor the performance of the unit during the guarantee period. If the customer requires this to remain in place AFTER the guarantee period, this can be arranged at a small extra charge.

Electrical Switchboards

Switchboards are fabricated from 1.6mm electro galvanised sheet metal, primed & spray painted, & recess 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

A BMS compatible Satchwell programmable control system is installed enabling all units in the same complex to be linked and to be accessible from a remote location via modem or the web. When the Satchwell controller is supplied it is fully configured & operational.

Temperature control is based on two averaging room sensors or a return air sensor mounted in the HPI unit.

The unit control includes the following features:
• Adjustable 7 day timer
• Comprehensive compressor management, anti-recycling, pump down & run hours
• BMS compatibility
• Comprehensive alpha numeric status indication of all settings, conditions, alarms & running equipment.
• Up to 4 digital outputs for cooling & up to 4 steps heating based on a 0-10Vdc signal & analogue to digital relay. 3 analogue outputs for damper and/or fan inverter control.

Installation

The TRTP 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 TPAC 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.

Testing

The units will be supplied factory tested & split if deemed abnormal for road transport. On-site reconnection, re-commissioning and handing over to the resident engineer are also provided for units supplied in two pieces.

Performance and Specifications

Model TRTP 295
Reference  
Supply Air Volume l/s 12000
Ext. Static Pa 250
Fan Static Pa 600
Fan Type BCC 800
Fan Motor kW 15
Ambient °C 35°C DB
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
Compressor Capacity KW 8x 36kW
Coil air volume L/s 12000
Total Cooling kW 295
Altitude masl Sea level
Stages 4
Refrigerant R 22
Electric heating kW 15
Humidifier Kg/hr 0
Essential Power supply A 35A 380Vac
Non-Essential Power supply A 190A 380Vac
Filter Media EU 2-stage
Filter quan / size 16 600x600
Length / Depth mm 4 400
Width mm 2 900
Height mm 4 400
Condenser Air l/s 36 000 l/s (Axial fans)

View PDF - Models TRTP EC95 - TRTP EC405 evaporative condenser units
View PDF - Models TRTP 95 - TRTP 405 air-cooled condenser units

Heat Pump International Therm-O-Pac Packaged Unit with Evaporative Condenser Model: TRP 95-190EC

Capacities and ratings based on 26°C DB/18°C WB on coil
& 12.5°C DB/12.0°C WB off coil at sea level. Power supply: 380/50/3 4-wire
Model TRP EC

95

105

115

125

135

145

155

165

170

180

190

Evaporative Condenser VXC

30

30

30

38

38

46

46

52

52

65

65

Nominal Cooling Capacity

kW

96

105

115

124

134

144

153

163

172

182

192

Supply Air Volume

m/s

5

5.5

6

6.5

7

7.5

8

8.5

9

9.5

10

 

 

Heating to customer specs from 20kW to 140kW

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

Unit Length/Depth

 

3300

3400

3400

3600

3600

3700

3700

3750

3750

3800

3800

Unit Width

 

2000

2000

2200

2200

2200

2300

2400

2400

2400

2700

2700

Unit Height

 

2000

2000

2000

2000

2200

2200

2230

2230

2230

2180

2180

Operating Mass

Kg

3788

3890

3950

4025

4025

4262

4262

4282

4282

4519

4519

Gross Mass (shipping)

Kg

3488

3590

3650

3725

3725

3962

3962

3982

3982

4119

4119

Full load current

A

76

80

86

92

100

110

116

122

138

146

154

Supply fan diameter

mm

500

560

630

630

630

710

710

710

710

800

800

Heat Pump International Therm-O-Pac Packaged Unit with Air-cooled Condenser Model: TRTP 215-405

Capacities and ratings based on 26°C DB/18°C WB on coil & 12.5°C DB/12.0°C WB off coil at sea level.  Power supply:  380/50/3 4-wire

Model TRTP

215

230

250

270

290

310

330

350

365

385

405

Nominal Cooling Capacity

KW

212

231

250

269

289

308

327

347

366

385

405

Supply Air Volume

m/s

11

12

13

14

15

16

17

18

19

20

21

 

 

Heating to customer specs from 20kW to 140kW

Unit Dimensions

 

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

Unit Height

A

2130

2550

2750

2750

2880

2700

2600

2700

2770

2770

2770

Unit Length/Depth

F

4140

4300

4300

4500

4700

5500

5500

5600

5600

5600

5600

Condenser Height

G

1250

1250

1250

1250

1250

1250

1250

1250

1250

1250

1250

Unit Width

H

2900

2800

2800

2800

2880

2800

2600

2800

2800

2800

2800

Total Height

M

3380

3800

4000

4000

4130

4050

4050

4050

4050

4050

4050

Condenser Width

N

2134

2134

2134

2134

2220

2220

2220

2500

2500

2500

2500

Operating Mass

Kg

3340

3596

3852

4073

4162

4418

4674

4899

5155

5411

5667

Gross Mass (shipping)

Kg

2840

3096

3352

3573

3662

3918

4174

4399

4655

4911

5167

Full load current

A

195

211

240

268

274

279

285

306

319

342

363

Supply fan diameter

Mm

800

900

900

900

1000

1000

1000

1000

1000

1000

1000




View PDF


Heat Pump International Therm-O-Pac Packaged Unit with Air-cooled CondenserModel: TRTP 95-195

Capacities and ratings based on 26°C DB/18°C WB on coil &
12.5°C DB/12.0°C WB off coil at sea level.
Power supply: 380/50/3 4-wire
Model TRTP

95

105

115

125

135

145

155

165

175

185

195

Nominal Cooling Capacity

KW

96

106

116

125

134

143

154

163

173

183

192

Supply Air Volume

m/s

5

5.5

6

6.5

7

7.5

8

8.5

9

9.5

10

 

 

Heating to customer specs from 20kW to 140kW

Unit Dimensions

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

Unit Height

 

2000

2000

2000

2000

2200

2200

2230

2230

2230

2180

2180

Unit Length/Depth

 

3300

3400

3400

3600

3600

3700

3700

3750

3750

3800

3800

Condenser Height

 

1150

1150

1250

1250

1250

1250

1250

1250

1250

1250

1250

Unit Width

 

2000

2000

2200

2200

2200

2300

2400

2400

2400

2700

2700

Total Height

 

3150

3150

3250

3250

3450

3450

3480

3480

3480

3430

3430

Condenser Width

 

1624

1676

1865

1865

2050

2050

2050

2134

2134

2134

2134

Operating Mass

Kg

1604

1701

1857

1957

1991

2138

2294

2450

2706

2962

3218

Gross Mass (shipping)

Kg

1204

1301

1457

1557

1591

1738

1894

2050

2306

2562

2818

Full load current

A

100

103

107

112

115

126

137

155

163

171

183

Supply fan diameter

Mm

500

560

630

630

630

710

710

710

710

800

800

Heat Pump International Therm-O-Pac Packaged Unit with Air-cooled Condenser Model:  TRTP 215-405

Capacities and ratings based on 26°C DB/18°C WB on coil & 12.5°C DB/12.0°C WB off coil at sea level.  Power supply:  380/50/3 4-wire

Model TRTP

215

230

250

270

290

310

330

350

365

385

405

Nominal Cooling Capacity

KW

212

231

250

269

289

308

327

347

366

385

405

Supply Air Volume

m/s

11

12

13

14

15

16

17

18

19

20

21

 

 

Heating to customer specs from 20kW to 140kW

Unit Dimensions

 

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

Unit Height

A

2130

2550

2750

2750

2880

2700

2600

2700

2770

2770

2770

Unit Length/Depth

F

4140

4300

4300

4500

4700

5500

5500

5600

5600

5600

5600

Condenser Height

G

1250

1250

1250

1250

1250

1250

1250

1250

1250

1250

1250

Unit Width

H

2900

2800

2800

2800

2880

2800

2600

2800

2800

2800

2800

Total Height

M

3380

3800

4000

4000

4130

4050

4050

4050

4050

4050

4050

Condenser Width

N

2134

2134

2134

2134

2220

2220

2220

2500

2500

2500

2500

Operating Mass

Kg

3340

3596

3852

4073

4162

4418

4674

4899

5155

5411

5667

Gross Mass (shipping)

Kg

2840

3096

3352

3573

3662

3918

4174

4399

4655

4911

5167

Full load current

A

195

211

240

268

274

279

285

306

319

342

363

Supply fan diameter

Mm

800

900

900

900

1000

1000

1000

1000

1000

1000

1000

 

 

 

 

 

 

 

 

 

 

 

 

 




View PDF