Marstair ECO+ - Pipework Joints and Thermal Insulation; Pipework Connections and Torque

14 /20
56208004-01
Installation instructions
NOTE
• Pipework joints - thermal Insulation:
Insulate the interconnecting pipework
with thermal insulation and tape any joints.
• Pipework - Thermal Insulation:
a. Run the drain hose under the pipework.
b. Insulate with at least 6mm thick insulation material.
Note: The drain hose is supplied by the installer
• The drain hose should be installed with
a fall away from the unit.
Ensure there are no kinks in the drain hose
Terminate the drain hose where it cannot
become immersed in water.
Ensure any joints in the drain hose are well
insulated.
• When the pipework is to be routed to leave
the right hand side of the unit, pipes, drain
hose and cables should be insulated as above
and secured within the unit using the piping
fixer.
• Pipework connection:
Finger-tighten indoor unit pipework, then use two spanners
as table below.
Pay special attention to the allowable torques (as shown in the table)
to prevent the pipes, connectors and flare nuts from being deformed
and damaged.
Torque (kg/m) Nut A/F (mm)
Model
Liquid
line
Suction
line
Liquid
line
Suction
line
Liquid
line
Suction
line
ECO+ 26
1/4”
3/8”
1.8 3.5 17 22
ECO+ 35
1/4”
1/2”
1.8 5.5 17 24
ECO+ 50
1/4”
1/2”
1.8 5.5 17 24