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Unit Start Up
Rotating Components!
During installation, testing, servicing and troubleshooting of this product it may be necessary
to work with live and exposed rotating components. Have a qualified or licensed service
individual who has been properly trained in handling exposed rotating components, perform
these tasks. Failure to follow all safety precautions could result in rotating components cutting
and slashing technician which could result in death or serious injury.
7. Press the TEST START key to start the test. Remember that the delay designated in step 6 must
8. Once the system has started, verify that the electric heat or the hydronic heat system is
9. Press the STOP key at the Human Interface Module in the unit control panel to stop the system
Gas Furnace Start-Up (Constant Volume & Variable Air Volume Systems)
It is important to establish and maintain the appropriate air/fuel mixture to assure that the gas
furnace operates safely and efficiently.
Since the proper manifold gas pressure for a particular installation will vary due to the specific BTU
content of the local gas supply, adjust the burner based on carbon dioxide and oxygen levels.
The volume of air supplied by the combustion blower determines the amount of oxygen available
for combustion, while the manifold gas pressure establishes fuel input. By measuring the
percentage of carbon dioxide produced as a by-product of combustion, the operator can estimate
the amount of oxygen used and modify the air volume or the gas pressure to obtain the proper air/
fuel ratio. Arriving at the correct air/fuel mixture for a furnace results in rated burner output, limited
production of carbon monoxide, and a steady flame that minimizes nuisance shutdowns.
Two Stage Gas Furnace
Hazardous Gases and Flammable Vapors!
Exposure to hazardous gases from fuel substances have been shown to cause cancer, birth
defects or other reproductive harm. Improper installation, adjustment, alteration, service or
use of this product could cause flammable mixtures. To avoid hazardous gases and flammable
vapors follow proper installation and set up of this product and all warnings as provided in this
manual. Failure to follow all instructions could result in death or serious injury.
When using dry nitrogen cylinders for pressurizing units for leak testing, always provide a
pressure regulator on the cylinder to prevent excessively high unit pressures. Never pressurize
unit above the maximum recommended unit test pressure as specified in applicable unit
literature. Failure to properly regulate pressure could result in a violent explosion, which could
result in death or serious injury or equipment or property-only-damage.
High-Fire Adjustment
1. Use
•
156
elapse before the fan will begin to operate.
operating properly by using appropriate service technics; i.e. amperage readings, delta tees,
etc.
operation.
Table 35, p. 108
to program the following system components for operation by scrolling
through the Human Interface displays;
Gas Heat
– Supply Fan (On)
WARNING
WARNING
RT-SVX36G-EN
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