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Quest Gas Fired CHH-300 Installation, Operation and Maintenance Instructions
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• Primary 1” hoses are used from the CHH quick-connect couplings (Fig. 26) to feed a manifold for either
multiple fancoils in air heating situations (Fig. 28) or multiple 5/8” hose circuits for ground thawing,
concrete curing, slab heating or snow melting (Fig. 29).
• 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 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-300 and the exterior building wall. Special “Insulating Wraps” are available for this
purpose.
25: Layout for Fluid Distribution
1. Central Hydronic Heating Unit
2. Burner& Heat Exchanger
3. Circulating Pump
4. Reservoir for Expansion & Filling
5. Primary Fluid Hoses, 1”
6. Secondary Fluid Hoses, 3/4” or 1”
7. Manifold for Multiple Connections
8. Fancoil Heat Exchanger
9. Heat Transfer Coil
10. Air Moving Fan
11. Heated Supply Air
12. Intake Air
13. Hose Grid Line Heat Exchanger 5/8”
14. Vapor Barrier
15. Insulated Tarps
