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Quest Gas Fired CHH-300 Installation, Operation and Maintenance Instructions
17
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• Check the HTF level gauge (Fig. 30). The reservoir should be ¼ to ½ full when the system is cold. Add
approved fluid, if necessary, at the vented filler cap (Fig. 30).
• Connect all primary hoses from the CHH-300 to the distribution manifold.
• Place all fancoils in the desired locations and route all the hoses to them OR lay out all hose grid circuits
for ground thaw or concrete curing.
• Connect hoses from the manifold to ONE fancoil or ONE thaw/cure loop ONLY.
• Open 2 HTF circuit valves (Fig. 31).Turn ON the circulating pump switch (Fig. 10) and let the fluid
circulate until all the air is eliminated from the first branch circuit. Air has been purged when steady
pressure of 30 to 35 PSI is observed at the glycol pressure gauge (Fig. 22).
• Connect each fancoil or thaw/cure loop, in turn, one at a time, in the same manner as above. When all
are connected and the pressure gauge maintains steady pressure, the system is charged and ready for
use.
• Check the HTF level again and top up if necessary (¼ to ½ full).
4.4 Propane Burner Installation and Setup
(Fig. 3)
• Refer to the Riello Burner 40-G400 manual (which is included with this package) for detailed
information and instruction.
• Specific propane gas burner settings for the CHH-300 are as follows.
Riello Burner Model
40-G400
Orifice:
#
1.5
Diaphragm:
#
C14
Gas Supply Pressure: Minimum
“WC (KPa)
8 (1.99)
Gas Supply Pressure: Maximum
“WC (KPa)
13 (3.24)
Head Setting: factory set
#
1
Gas Manifold Pressure ( P): factory set
“WC (KPa)
5.0 (1.25)
Air Gate Setting: factory set
#
3.0
Heat Input
B/tu/H (Watts)
250,000 (73,250)
Heat Output: @ 80% net efficiency
B/tu/H (Watts)
200,000 (58,600)
