Air Conditioning Condenser Unit All Gassed Up?

16/10/2024 12:00AM | By John Benson

We are coming into a very hot Summer which will produce some harsh environmental conditions, so it is time to check your vehicle’s air conditioning (AC) unit.

Is your AC unit properly gassed up and functioning correctly? Do you receive the occasional warm or hot shot of air when you turn on your AC unit?

If so, chances are your AC system needs attention in two areas: regassing the condenser, and/or the electric fan may need replacing. The re-gassing of your AC Condenser is a very specialised job and should only be undertaken by a qualified technician.


The other vital and important component to your AC system is the Thermatic® Electric Fan. It effectively pushes or pulls air through the air conditioning condenser to assist with heat transfer thus providing refreshing, cool air into your cabin. The AC condenser is the major component and functions as a heat exchanger for the AC system, converting the refrigerant from gas to liquid so it can flow through the AC system.


The heat generated can only be expelled if a strong efficient Thermatic® Electric Fan is installed, stating that a strong Thermatic® Electric Fan with a high wind force (CFM Cubic Ft/Min = ft3/min) is essential to keeping the AC condenser cool so it can continue to efficiently convert the gas into liquid and keep the AC system functioning as designed. The stronger the air flow across the condenser, the cooler the air which can be generated inside the driving compartment. A defective or inefficient electric fan will be detrimental to your entire AC system.


Davies Craig warns that a proliferation of imported fans has emerged over recent years which are very similar in appearance while having dubious performance. Consequently, these units are not fit for purpose as they do not generate sufficient, effective CFM required to produce sufficient cool air flow through your vehicle’s air conditioning system.


Davies Craig has been manufacturing high performance Thermatic® Electric Fans for more than 50 years and offers a wide range of Thermatic® Electric Fans manufactured from strong, heatresistant 66 Nylon/glass, offering high air flow, low profile and low current draw. They also now have a three-year warranty.

 

Davies Craig says every one of its Thermatic® Fan models have been put through exhaustive durability and certified wind tunnel tests to ensure each delivers high, accurate air flow and CFM (ft3/min Cubic Feet per minute).


Every model can be installed in either ‘pusher’ or ‘puller’ configuration by simply reversing the blade and polarity for bi-directional air flow.


Davies Craig also recently introduced four High Power and four Brushless Thermatic Electric Fan models to complement the existing Thermatic
Electric Fan range. It says each of these models delivers a 40 percent
higher CFM than their standard equivalent models and importantly, enjoy the same mounting profile. Models are available to suit 12V and 24V electrical systems.


All Davies Craig’s Thermatic Fans offer reverse polarity allowing each fan to be installed either in front (pusher) and/or behind (puller) the condenser.

THERMATIC® / ELECTRIC FAN RANGE

Thermatic® / Electric
Fan Size

Part #

Airflow

Max Current

Weight

Height

(mm)

Width

(mm)

Depth

(mm)

12V

24V

12V

24V 

8” Thermatic®

Electric Fan

0135

0136

400 CFM

680 m3/h

400 CFM

680 m3/h

5A (12V)

2.4A (24V)

0.88 kg

1.9 lb

211

213

56

Brushless 8” Thermatic® 

Electric Fan

0121

0122

450 CFM

765 m3/h

470 CFM

799 m3/h

7A (12V)

5A (24V)

1.27 kg

2.8 lb

211

213

66

9” Thermatic® 

Electric Fan

0160

0161

591 CFM

1004 m3/h

591 CFM

1004 m3/h

6.5A (12V)

3.25 (24V)

0.93 kg

2 lb

242

246

55

Brushless 9” Thermatic® 

Electric Fan

0123

0124

788 CFM  

1340 m3/h

850 CFM  

1444 m3/h 

11A (12V)

9A (24V)

1.33 kg

2.9 lb

242

246

68

10” Thermatic® 

Electric Fan

0145

0146

693 CFM

1177 m3/h

693 CFM

1177 m3/h

7A (12V)

3.5A (24V)

1.13 kg

2.5 lb

270

290

64

10” Slimline Thermatic® 

Electric Fan

0147

0148

696 CFM

1183 m3/h

696 CFM

1183 m3/h

7A (12V)

3.5A (24V)

1.13 kg

2.5 lb

278

275

56

10" High Power Thermatic® 

Electric Fan

0150

0151

1000 CFM

1699 m3/h

1000 CFM

1699 m3/h

19A (12V)

10A (24V)

1.5 kg

3.3 lb

278

275

84

Brushless 10" High Power

Thermatic® Electric Fan

0125

0126

1020 CFM

1736 m3/h

1075 CFM

1826 m3/h

15A (12V)

10A (24V)

1.4 kg

3 lb

278

275

66.5

12” Thermatic® 

Electric Fan

0162

0163

847 CFM

1439 m3/h

847 CFM

1439 m3/h

9.0A (12V)

4.5A (24V)

1.45 kg

3.2 lb

293

293

58

12" High Power Thermatic® 

Electric Fan

0155

0156

1250 CFM

2124 m3/h

1250 CFM

2124 m3/h

22A (12V)

12A (24V)

1.6 kg

3.5 lb

293

293

86

Brushless 12" High Power

Thermatic® Electric Fan

0127

0128

1295 CFM

2200 m3/h

1360 CFM

2311 m3/h

18A (12V)

10.5A (24V)

1.5 kg

3.3 lb

293

293

68.9

14” Slimline Thermatic® 

Electric Fan

0164

0165

1021 CFM

1735 m3/h

1021 CFM

1735 m3/h

11.0A (12V)

5.5 (24V)

1.5 kg

3.3 lb

350

348

76

14” High Power Thermatic® 

Electric Fan

0107

0108

1500 CFM

2549 m3/h

1500 CFM

2549 m3/h

13A (12V)

6.5 (24V)

2.5 kg

5.5 lb

350

348

94

16” Thermatic® 

Electric Fan

0166

0172

2120 CFM

3602 m3/h

2120 CFM

3602 m3/h

19A (12V)

9.5 (24V)

3.0 kg

6.6 lb

400

424

97