Page 33 (52)
Ver 2_en_2022-06-27
Assembly Instructions
Envistar Flex
7.3
Assemble counter-flow heat exchanger (EXM)
00061
1
3
2
Figure: Counter-flow heat exchanger, sectioned configuration
1. Two-part counter-flow heat exchanger
2. Corner strut
3. Approximate location of quick connector
4. Joint fixings
5. Three-part counter-flow heat exchanger
Take apart counter-flow heat exchanger
1. Separate quick connectors for damper motors (one on two-part version and two on the
three-part). See
"6.5 Quick connectors”, page 27.
2. Loosen hoses.
3. Loosen and remove bolts and screws in corner struts and joint fixings.
4. For the three-part version: Cut away the putty in the joints that is affected by the dismant-
ling.
5. Pull the parts apart without damaging the sealing strip between the parts.
Assemble counter-flow exchanger.
1. Slide the parts together without damaging the sealing strip.
2. Screw the parts together on the corner struts and joint fixings.
3. For the three-part version: Add new putty in those joints where the putty was cut away
when dismantling.
4. Fit back hoses.
5. Put together quick connectors for damper motors. See
"6.5 Quick connectors”, page
27.
6. Connect drainage.
