Filter
Top Products
34 Packaged Heat Pump • WC-IOM-7
Installation
starts. Oil foaming occurs when refrigerant condenses in the compressor and
mixes with the oil. In lower ambient conditions, refrigerant migration to the
compressor could increase.
When the compressor starts, the sudden reduction in crankcase pressure causes
the liquid refrigerant to boil rapidly causing the oil to foam. This condition could
damage compressor bearings due to reduced lubrication and could cause
compressor mechanical failures.
Before starting the unit in the “Cooling” mode, set the system switch to the “Off”
position and turn the main power disconnect to the “On” position and allow the
crankcase heater to operate a minimum of 8 hours.
Before closing the main power disconnect switch, insure that the “System”
selection switch is in the “Off” position and the “Fan” selection switch is in the
“Auto” position.
Close the main power disconnect switch and the unit mounted disconnect switch,
if applicable.
ƽWARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it may
be necessary to work with live electrical components. Have a qualified licensed
electrician or other individual who has been properly trained in handling live
electrical components perform these tasks. Failure to follow all electrical safety
precautions when exposed to live electrical components could result in death or
serious injury.
To prevent injury or death from electrocution, it is the responsibility of the
technician to recognize this hazard and use extreme care when performing
service procedures with the electrical power energized.
ReliaTel Controls
Upon power initialization, the RTRM performs self-diagnostic checks to insure
that all internal controls are functional. It also checks the configuration
parameters against the components connected to the system. The Liteport LED
located on the RTRM module is turned “On” within one second of power-up if
internal operation is okay.
Use one of the following “Test” procedure to bypass some time delays and to
start the unit at the control panel. Each step of unit operation can be activated
individually by temporarily shorting across the “Test” terminals for two to three
seconds. The Liteport LED located on the RTRM module will blink when the test
mode has been initiated. The unit can be left in any “Test” step for up to one hour
before it will automatically terminate, or it can be terminated by opening the
main power disconnect switch. Once the test mode has been terminated, the
Liteport LED will glow continuously and the unit will revert to the “System”
control.