Eppendorf CO2 Back-up System - Manual (Page 17)

Installation
New Brunswick CO2 Back-up System
English (EN)
17
6.5 Manifold-to-solenoid valve transfer line assembly
The manifold-to-solenoid valve transfer line assembly consists of the brass, six position block manifold, the
2.0
m (6.6 ft) transfer line, and the solenoid valve.
6.5.1 Manifold-to-solenoid valve transfer line assembly for upright freezers (including
Model U101)
1. Insert the free end of the 2.0 m (6.6 ft) transfer line into the solenoid valve assembly.
2. Rotate the fitting clockwise to tighten.
6.5.2 Manifold-to-solenoid valve transfer line assembly for chest freezers
1. Remove the compressor housing panel.
2. Remove the 2-inch blanking plug from the rear panel of the freezer.
3. Insert the free end of the 2.0 m (6.6 ft)transfer line into the solenoid valve. Pull enough hose through to
reach the solenoid valve.
4. Rotate fitting clockwise to tighten.
6.6 Solenoid valve to freezer installation
The solenoid valve is fitted to the freezer through the port fitted with a nylon plug and surrounded by a ring
of four screws. The port is located (a) on the top panel, in the rear right-hand corner on Upright models
(except for the Model U101: see NOTE below), or (b) inside the compressor compartment on Chest models.
NOTE: On the U101 Innova freezer, the injector port is located on the left-hand side wall.
6.6.1 Solenoid valve installation for upright freezers
1. Remove the nylon plug and the 4 screws surrounding the plug. Retain the screws for reuse.
2. Remove the protective cap from the end of the solenoid valve injector pipe.
3. Slide the square attachment plate with the central hole over the copper solenoid valve pipe.
4. Slide the insulation tube over the solenoid valve injection pipe.
5. Push the solenoid valve injector pipe with insulation tube into the exposed port in the freezer cabinet.
6. Slide the U-shaped bracket onto the slot of the solenoid valve body.
7. Secure the two plates to the body with the 4 screws that were set aside for reuse.
8. Tighten screws evenly to lock the solenoid valve into position.
6.6.2 Solenoid valve installation for chest freezers
1. Locate the port for the solenoid assembly on the upper right-hand side of the compressor compartment.
2. Remove the protective cap from the end of the solenoid valve injector pipe.
3. Slide the square attachment plate with the central hole over the solenoid valve injector pipe.