DUALAIR® HEATING AND COOLING UNITS INSTALLATION OPERATION AND SERVICE MANUAL

16.8.1 Fan Removal and Replacement

Fan Plate

 

Fan Outlet Flange

 

Securing Screws

 

 

 

Fan Mounting

 

 

Brackets

 

 

(re-use on new fan)

 

 

Bracket Screws

 

 

(re-use on new fan)

 

 

Fan Foot

 

 

Screws

Description

Part Number

 

Torin Fan DDC 270-270

A047

 

Torin Fan DDC 241-241

A049

Mounting Rail

 

 

1.Remove motor leaving the pulley in place. See Page 41, Section 16.8.

2.Remove screws securing the fan outlet flange to the fan panel. (captive nuts)

3.Remove nuts and bolts securing the fan feet to the mounting brackets.

4.Slide the fan out.

(fan is heavy, may need two people)

5.Remove the fan mounting brackets from the fan. Retain components to fit to new fan.

6.Remove the Fan pulley by using a hexagonal key to remove the taper lock screws. Use one of these screws to fit into the centre jacking screw and tighten into this position to separate the taper lock bush and the pulley.

7.Refit the components above to the new fan and refit in reverse order.

8.Check belt alignment and tension.

9.Check fan rotation is correct.

16.9Combination Fan/Limit Thermostat 16.9.1 Removal and Replacement

1. Remove wires.

2. Remove the mounting screws.

3.Fit a new thermostat ensuring that the correct temperature setting and type are selected. See Page 7, Section 4.3 through Page 8, Figure 4.4.

4.Reconnect wires and test operation.

42

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Image 48
Roberts Gorden DAT75, DAT90, DAT100, DAT115 service manual Fan Removal and Replacement