quest
quest
1-866-413-5214
Quest Oil Fired CHH-980 Installation, Operation and Maintenance Instructions
22
www.QuestProtect.com
j. To re-assemble the unit, replace components in reverse order to which they were removed.
k. Reconnect fuel and power supply to the unit and when re-starting the system perform all safety and
service checks as outlined above.
H. The CHH-980 will produce condensate while operating, at any time that the circulating fluid is cooler
than approximately 130ºF (54ºC). A 1/2” hose is connected to a fitting in the bottom of the chamber at front
and is routed to the outside of the cabinet to carry condensate away. This tube should be inspected and
cleaned, if necessary, when putting the system into operation on every new project or a minimum of once
yearly.
I. Flame inspection is recommended on a frequent basis (about once per month under normal continuous
service) and a flame inspection port is available for this. It is located behind a flip-up door at the top of the
burner. Must be performed by a trained service technician ONLY.
a. Normal flame should be bright orange-yellow.
b. Although visual inspection is beneficial. We strongly recommend that instruments be used to check
combustion quality. This procedure is outlined in (#.1), above.
J. On a daily basis, the area around this system must continue to be kept clear and free from combustible
materials, gasoline and all other flammable vapors and liquids.
K. At both ends of the CHH-980 cabinet, Louvers are stamped into the access doors to provide intake air
for combustion and ventilation. Check on a daily basis to ensure that nothing is allowed to obstruct this free-
flow of air.
L. Check heat transfer fluid level daily. Maintain between 1/4 cold and 1/2 hot during normal operation. If
excessive fluid loss occurs check all hoses and connections for leaks. Top-up only with approved HTF. (See
User’s Manual for details).
M. Verify that all gauges are maintaining within their desired operating ranges with respect to setpoint.
N. Check fuel tank level daily and order fuel as required.
O. Make sure that all access doors and panels are kept closed and locked while the system is in use.
P. Isolate and clean both Y-strainers before each set up, at least once per year or as required due to fluid
contamination. To clean the Y-strainers (Fig. 37) close the ball valves “A” and “B”, immediately above the
Y-strainers and disconnect all the quick-coupler connections at the alcove manifold (Fig. 31), on the outside
of the cabinet. This will isolate the Y-strainers. The caps on the Y-branches can now be removed so the
cylindrical screens can also be removed. Clean the screens with compressed air or a small wire brush. Put
the screens back in place and re-engage the caps, quick coupler connections and valves.
For further service assistance
Call the manufacturer toll free at: 866-413-5214 to speak to a Hydronic Service Specialist.