Operator`s manual

PUREHEAT™ HYDRONIC AIR HEATER OPERATOR’S MANUAL–SECTION 2
V. 2, Rev. 09/01/06 © 2006 Ground Heaters, Inc. 2- 9
2-12
HX200
HX100
HX50
Support Bar
2-11
2-9
2-10
2.7 UNIT SHUTDOWN
2.7.1 Burner Shutdown
1. Turn the BURNER Switch OFF and allow system cool down.
2. Continue running the Main Pump and optional Booster Pump (if
applicable) for 15 to 20 minutes to cool the HTF to 120ºF (49ºC) or
lower.
3. Turn the Main PUMP and BOOSTER PUMP (if applicable) Switch
OFF.
4. SHUT the Return Valve #2 and Suction Valve #3.
5. SHUT the Cam-Lock Suction Valve #6 and Cam-Lock Return Valve
#7 and Open Cross-Connect Valve #5 (if applicable).
2.7.2 Disconnecting Hoses from Heat Xchangers™ and
Pureheat
1. Disconnect the Supply and Return Hose Sets from the 5-Port On-
Board Manifold and the Heat Xchangers™ or 4-Port Remote Manifold (if
applicable).
2. HX50 and HX100 series 1/2 in. ID X 40 ft. Black Hose Assemblies with
QCs wind onto the back of the Heat Xchanger™. (Photo 2-9)
2.7.3 Rewinding the Circulation Hose
1. Fully release Hose Reel Brake (Photo 2-10) by turning the Brake T-
handle counterclockwise. Attach the female end of 200 ft Circulation
Hose to the Hose Reel Rewinding Hook (Photo 2-11). Rewind the
longest hose lengths first.
2. Turn ON the HOSE REWIND Switch.
3. Rinse QC in a bucket of water to remove any dirt before connecting onto
hose reel. (Refer to Appendix B-11 PUREHEAT SAFTEY CONTROLS
QUICK CONNECT AND CAM-LOCK CARE AND MAINTENANCE.
4. Remove the Foot Pedal from storage location and position to allow
control of rewind operation. The Foot Pedal should be placed on a
piece of plywood or other material to keep it dry.
5. Turn the REWIND MOTOR Switch ON at the Main Control Panel.
Always wear gloves to protect hands while rewinding
circulation hoses.
6. Depress the Foot Pedal to begin rewinding, and
guide the hose evenly onto the Hose Reel.
7. Sequentially connect additional 1 in. ID Red Hose
Assemblies with QC's (200 ft, 100 ft and 50 ft).
Rewind the final 10 ft (3 m) of each 1 in.
ID Circulation Hose by hand to prevent
damaging a fitting or hose connection.
8. Set the Hose Reel Brake by turning the Brake T-
handle clockwise when all of the Supply and
Return Hose Sets have been rewound on the Hose Reel and turn the HOSE REWIND Switch OFF.
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