Identifying And Replacing Orifices; Replacing An Orifice; Figure 5.5 Nitrogen Supply And Nitrogen Sampling Orifices - Carrier EverFRESH Operation, Service And Parts Manual

5.8

Identifying and Replacing Orifices

The EverFRESH system has two orifices: nitrogen supply and nitrogen sampling
fan deck between the evaporator fan motors.
Refer to Figure 2.3 for location of the orifices in relation to all of the EverFRESH components.
Refer to Warnings in the beginning of this
5.8.1

Replacing an Orifice

1. For a loaded unit, remove the left hand Evaporator Fan access panel.
For an empty unit, remove the interior upper panel.
2. Remove the left hand Evaporator Fan motor.
3. Remove the two clamps holding the nitrogen distribution block and move the block across to the opening
where the fan motor was.
4. Disconnect the nitrogen lines and remove the distribution block.
5. The orifices can now be removed from the distribution block and cleaned or replaced as necessary.
6. Reverse the above steps to re-install the orifices. The orifice end of the connector faces away from the Tee
when being re-installed.
Service

Figure 5.5 Nitrogen Supply and Nitrogen Sampling Orifices

section before performing maintenance.
5–25
5.5), located above the
(Figure
T-374