Drain Piping - Mitsubishi Electric PAC-TZ02-E Installation Manual

3 In the case of Hydrobox
Heating only model
After hand tighten the nut,
tighten the joint 1 turn.
If necessary, tighten by
another 1/4 of a turn.
Tightening torque: 42N·m
Use double spanners.
Do not use the fl exible hose below the bend radius of 150 mm.

Drain piping

Connect the drain pipe only for Heating/Cooling models.
<Cylinder unit>
Connect drain socket to field pipeworks
using suitable adhesive bond.
NOTE
● Please use PVC pipe for drain piping.
● Use only compatible adhesive/glue for pipe joint.
● For proper drain-off, install pipework with gradient/fall of min. 1/100.
● Install pipe to fall continuously without bowing.
● Do not install any air purge points on condensate drain pipe run.
● Condensate drain pipe must discharge to suitable and safe outlet location. It should not be directly connected to any
sewer-connected pipework that may introduce sulphurous gases/smells to the building.
* "VP-20" is a PVC pipe with an outside diameter of 26 mm and an inside diameter of 20 mm.
6
Pipe cover
(Local supply)
<Hydrobox>
Field supplied drain pipe
(VP-20A)* (Insulated)
<View from below>
Heating only model
B A
Heating and cooling model
B
A
Letter Pipe description
Space heating/Indirect DHW tank
A
(primary) return connection
Space heating/Indirect DHW tank
B
(primary) fl ow connection
B A
Connect drain socket to field
pipeworks using suitable
adhesive bond.
Field supplied drain pipe
(VP-20A)* (Insulated)