18
3
Panel/Floor Heater Piping Installation
• It’s strongly recommended to install an expansion vessel
(purchase seperately) in the water circuit. Refer
Typical
piping installation
section to locate the expansion vessel.
• The capacity of the expansion vessel should be given by
formula.
• Connect Tank Unit tube connector
E
(indicated with
“PANEL/FLOOR (OUT)”) to inlet connector of Panel/Floor
heater.
• Connect Tank Unit tube connector
F
(indicated with
“PANEL/FLOOR (IN)”) to outlet connector of Panel/Floor
heater.
• Failure to connect the tube appropriately might cause the
Tank Unit malfunction.
4
Drainage Piping Installation
• Use a drain hose with inner diameter of 15 mm.
• The hose must be installed in a continuously downward
direction and left open to the frost-free atmosphere.
• If drain hose is long, use a metal support fixture along the
way to eliminate the wavy pattern of drain tube.
• The water may drip from this discharge hose. Therefore
must guide the hose without close or block the outlet of the
hose.
• Do not insert this hose into sewage hose or cleaning hose
that may generate ammonia gas, sulfuric gas etc.
• If necessary, use a hose clamp to tighten the hose at drain
hose connector to prevent it from leaking.
• Guide the drain hose to outdoor as illustrated at the right
figure.
5
Water Discharge Piping Iinstallation
• Use 1/2” male connector for discharge valve connection.
Refer to
Main components diagram
section for the location
of discharge valve.
• Piping must to be installed in a continuously downward
direction and in a frost-free environment.
• Discharge pipes must be visible and away from electrical
components.
Summary of Contents for WH-TX30B9E8
Page 7: ...7 4 Location of Controls and Components 4 1 Tank Unit 4 1 1 Location of Control ...
Page 8: ...8 4 1 2 Main Components ...
Page 9: ...9 5 Dimensions ...
Page 10: ...10 6 Water Cycle Diagram ...
Page 11: ...11 7 Wiring Connection Diagram ...
Page 12: ...12 8 Electronic Circuit Diagram 8 1 Indoor Unit ...
Page 13: ...13 9 Printed Circuit Board 9 1 Tank Unit 9 1 1 Main Printed Circuit Board ...
Page 14: ...14 9 1 2 Surge Printed Circuit Board ...
Page 47: ...47 15 2 Heater Removal Procedures ...
Page 48: ...48 15 3 Main Printed Board Removal Procedures ...
Page 49: ...49 15 4 Control Board Removal Procedure ...
Page 50: ...50 15 5 Pressure Relief Valve Procedures ...
Page 51: ...51 15 6 Flow Switch Removal Procedures 15 7 Water Pump Removal Procedures ...
Page 52: ...52 16 Technical Data 16 1 Pump Characteristic 16 2 Water Tank Sensor Characteristic ...
Page 53: ...53 ...
Page 54: ...54 ...