15
Ultra
1.54
Comfortable indoor climate in high-end interiors
Installation and operating instructions
7. Waterside connection
• Connect the Ultra as per the labels on the product.
• Route the pipes so that no mechanical stresses are transferred to the heat
exchanger and the unit can be accessed with ease for maintenance and
repair work.
• Provide ventilation for the pipes on site.
• Properly seal pipe connections not being used.
•
Important note:
The heat exchanger is suitable for use with hot water
heating systems in compliance with DIN 18380. Ensure that operating
conditions and water quality conform to VDI 2035 and comply with
industry-standard installation regulations.
Caution!
Hold the connections on the heat exchanger with a pipe wrench
or other suitable tool when connecting the pipework.
Caution!
Insulate all pipes with an impermeable material on cooling units!
Continue the insulation through as far as the unit.
Caution!
The use of flexible pipes (such as braided pipe connections,
spiral or corrugated pipes) are recommended in particular when installing
the unit under a solid ceiling. When used in conjunction with appropriate
shut-off valves, it is then possible to dismantle the unit relatively easily
without needing to dismantle the fan. EC fans can only be replaced if the
entire Ultra has been dismantled.
8. Factory-fitted accessories
Description of accessories
Suffix for Ultra type
Frost protection thermostat and square connecting frame
. . . . . . F
Repair switch
. . . . . . R
Monitoring thermostat with recirculating air units
. . . . . . T
Continuously variable power module including repair switch for
Ultra type ending 16
. . . . . . V
KaControl recirculation air module including repair switch for Ultra
type ending 16, 33 and 34.
. . . . . . C1
Description of accessories
Suffix for mixed air
unit type
Differential pressure switch for filter monitoring
. . . . . . D
Limit switch, for mixed air unit
. . . . . . E
V 1“
R 1“
A
A
330
B
C
D
35
35
Ultra-Serie
A
B
C
D
73
840
750
739
729
84/85
1004
900
912
904
96
1177
1050
1085
1077
1
Flow
2
Return
1
2
Several combinations of components are possible e.g. …FR, DE
