How To Remove The Drain Cock (Primary Circuit); How To Remove The Drain Cock (Sanitary Circuit) - Mitsubishi Electric EHST17D-VM2D Service Manual

DISASSEMBLY PROCEDURE

16. How to remove the drain cock (primary circuit)

(1) Remove the front panel. (Refer to Procedure 1.)
<Pump valve side>
(2) Remove the drain cock from the pump valve by turning
the drain cock. (Photo 16-1)
<Pipe side (for P-HEX)>
(2) Remove the drain cock from the pipe by turning the drain
cock. (Photo 16-1)
<Pipe side (Only EHPT20X series)>
(2) Remove the drain cock from the pipe by turning the drain
cock. (Photo 16-2)

17. How to remove the drain cock (sanitary circuit)

(1) Remove the front panel. (Refer to Procedure 1.)
<DHW tank side>
(2) Remove the drain cock by detaching the quick connection.
(Photo 17-1)
• When reinstalling the quick connection, use a new
O-ring.
• Refer to Procedure 25 for how to attach and detach
the quick connection.
<P-HEX (Water-Water) side>
(2) Remove the drain cock from the P-HEX (Water-Water) by
turning the drain cock. (Photo 17-2)
Photo 17-2
P-HEX
OCH714A
Photo 16-1
Drain cock
(Pump valve side)
Photo 16-2
Photo 17-1
Quick
connection
O-ring
Drain cock
(P-HEX side)
78
PHOTOS/ FIGURES
Drain cock
(Pipe side)
Drain cock (DHW tank side)
Drain cock for P-HEX
(Pipe side)