Operator`s manual
PUREHEAT™ HYDRONIC AIR HEATER OPERATOR’S MANUAL–SECTION 2
V. 2, Rev. 09/01/06 © 2006 Ground Heaters, Inc. 2- 11
11. Connect a heavy duty 10-3 extension cord of no more than 20 ft (6 m) in length into the Auxiliary
Pump Panel Male Pigtail.
12. Connect a 20 amp. 120 volts AC 60 Hz electrical circuit supply (not the same circuit used for the
Pureheat) to the Auxiliary Pump Panel.
NOTE: The Booster Pump should only be started after the Pureheat has been set up and is ready for use.
The Booster Pump will only operate when the Main PUMP Switch is turned ON at the Main Control
Panel. (Refer to Section 2.4, START UP.)
2.8.2 Start Up
1. Verify Cam-Lock Suction Valve #6 and Cam-Lock Return Valve #7 are in the OPEN position. Verify
Cross-Connect Valve #5 is in the SHUT position. (Photo 2-13).
2. Turn the BURNER Switch ON at the Main Control Panel.
3. Turn the Main PUMP Switch ON at the Main Control Panel.
4. Turn the Auxiliary Pump Panel BREAKER Switch ON.
2.8.3. Shutdown
1. Turn the BURNER Switch OFF.
2. Continue to operate the Main Pump and optional Booster Pump until the HTF has cooled below
120ºF (49ºC).
3. Turn the Main PUMP Switch OFF at the Main Control Panel.
4. Turn the Auxiliary Pump Panel BREAKER Switch OFF.
5. SHUT and LOCK Cam-Lock Suction Valve #6 and Cam-Lock Return Valve #7 and replace the Cam-
Lock Protective Caps. OPEN Cross-Connect Valve #5. (Photo 2-13)
DO NOT DISCONNECT THE OPTIONAL BOOSTER PUMP SUCTION LEADER HOSE AND
RETURN LEADER HOSE UNTIL HTF HAS SUFFICIENTLY COOLED AND SYSTEM
PRESSURE IS AT ZERO (0) PSIG.
2.8.4 Disconnecting
1. Disconnect the optional Booster Pump Suction Cam-Lock Leader Hose from the Cam-Lock Suction
Valve #6 and connect the Protective Cap at the 5-Port On-Board Manifold.
2. Disconnect the optional Booster Pump Return Cam-Lock Leader Hose from the Cam-Lock Return
Valve #7 and connect the Protective Cap at the 5-Port On-Board Manifold.
3. Connect the Protective Cap on the optional Booster Pump Suction Cam-Lock Leader Hose and
Return Cam-Lock Leader Hose.
4. Disconnect the Booster Pump Power Cord and extension cord. Stow the Booster Pump Power Cord,
Suction Cam-Lock Leader Hose and Return Cam-Lock Leader Hose neatly in the Booster Pump
enclosure.
Verify that Drain Valve #1, Return Valve #2, and Suction Valve #3 are SHUT. Fill Valve
#4, Cam-Lock Suction Valve #6 and Cam-Lock Return Valve #7 must locked SHUT.
Cross-Connect Valve #5 is OPEN. Verify that the Male and Female Cam-Lock fittings
on Cam-Lock Suction Valve #6 and Cam-Lock Return Valve #7 are plugged and
capped. (Refer to Photos 2-7, 2-8 and 2-13)
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