39
120 mm
190 mm
411 mm
Sz
Ez
A
Indoor unit 91
Suction line Sz mm 242
Injection line Ez mm 242
© STULZ GmbH – all rights reserved EN/01.2019/G22
EC TOWER TECHNICAL MANUAL
View A:
Connection dimensions
View from rear:
The locations of the pipe connections have
a tolerance of ± 10 mm.
Injection line
Suction line
Indoor unit 091
Outdoor unit SRC 50 ZSS/ZSXS FDC 71 VNX
Connection of suction line inches 7/8" UNF*
Connection of injection line inches 5/8" UNF*
Indoor unit 091
Outdoor unit SRC 50 ZSS/ZSXS FDC 71 VNX
Suction line mm/inches 12/1/2" 16/5/8"
Injection line mm/inches 6/1/4" 10/3/8"
Upflow ECU 91
In Upflow units, the refrigerant pipes are routed out of the unit through holes in the right-hand side panel. The
holes have the dimensions stated below. The point of reference is the rear right corner at the bottom.
Diameter of refrigerant pipes
Diameter of connections
* Flared joint.
All dimensions in mm.