Quest Engineering PowerHeat 980 Pro CHH-980 Installation, Operation And Maintenance Instructions - Quest
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Quest Oil Fired CHH-980 Installation, Operation and Maintenance Instructions
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4. Setup
4.1 Positioning Equipment on the Job
Before choosing the location to place the central hydronic heater on a job site, several factors should be
considered.
• If possible, the CHH-980 should be placed at a central position that will minimize and equalize the
lengths of hoses. This helps to ensure maximized and equalized HTF flow.
• Convenient access to a suitable electrical connection, if site power is to be used. 120/240V, 1Ph, 60Hz,
50A, 4-wire grounding is required.
• Convenient access for bulk truck re-fueling.
• Do not locate in the path of job site traffic.
• Avoid locations that will expose the CHH to intense dust or other sources of air contamination. Clean
flowing air is essential to maintain clean combustion.
• Observe all requirements listed in the “Instructions for Installation” document provided with this unit.
4.2 Hose and Accessory Connections
In order to make use of the heated fluid, it is necessary to lay out a circuit of hoses to; distribute the hot fluid,
transfer its heat to another medium and return the cooled fluid to the CHH-980 for re-heating (Fig. 30).
• Up to 3, individual, primary, 1” hose circuits can be connected to the CHH-980 quick-connect
couplings (Fig. 31) to feed the same number of manifolds for either multiple fancoils in air heating
situations (Fig. 33) or multiple 5/8” hose circuits for ground thawing, concrete curing, slab heating or
snow melting (Fig. 34).
• Use only “approved hose” as supplied by ThermaStor. Otherwise, compatibility issues may arise.
• Hoses are pre-charged with the recommended mixture of water and propylene glycol (HTF) and are
equipped with hydraulic-style quick couplers. Every hose has a male connector on one end and a
female connector on the other end; therefore any hose can be used for either the supply side or the
return side of the hose circuit.
• Route hoses to achieve minimum chance of damage from traffic of any kind and at the same time
minimize the overall circuit length.
• Provide protection from “Kinking” of hoses that would restrict flow.
• When connecting quick couplers, ensure that the connections are “Fully Engaged” and snapped into
place or flow will not take place through the coupler connection.
• For long term, building heating projects it is advised to insulate all hose sections located outdoors,
between the CHH-980 and the exterior building wall. This also applies for the primary 1” hose circuits
on a thaw or cure job, to reduce fluid heat loss between the CHH-980 and the thaw/cure manifold.
Special “Insulating Wraps” are available for this purpose.
• Connect all primary, 1” hoses from the CHH-980 to the distribution manifold(s). Three manifolds can be
connected at once, each to a separate pair of 1” primary hoses.
• Place all fancoils in the desired locations and route all the secondary hose circuits to them OR lay out
all hose grid circuits for ground thaw or concrete curing.
• Connect hoses between the manifold(s) and the fancoils or the thaw/cure loops.