7.2.6Installing New Software

NOTE: A software upgrade kit is required.

Some software may not be available in your country. Refer to your local Fisher & Paykel Healthcare representative for the appropriate part number:

 

Single ROM pack

32 ROM Pack

GJU model

043042459

043042461

JHU model

043042458

043042460

All other models

043042066

043041255

Figure 7.8 Showing location of U3

1.Open the case (section 7.2.1).

2.Remove ROM integrated circuit U3 (Figure 7.8) using appropriate tools.

3.Place new ROM into the empty socket, ensuring correct orientation.

4.Close the case (section 7.2.8)

5.Turn the humidifier upside down; use a non conducting tool to hold the production test button down. This button is accessible through the right air vent slot (when looking at the rear of the humidifier). See Figure 7.9.

WARNING:

Never use an electrically conducting tool to depress the production test button, as there are live mains voltages inside the humidifier.

Figure 7.9 Showing Location of the Production Test Button

42 MR850 Technical Manual * Revision J * Issued November 2005 * Ref. 185041340 (185041713 internal)