136 RT-SVX36G-EN
Unit Start Up
Note: Compressor Damage could occur if the crankcase heater is not allowed to operate the
minimum of 8 hours before starting the compressor(s).
4. Turn the 115 volt control circuit switch 1S1 and the 24 volt control circuit switch 1S70 to the “On”
position.
5. Open the Human Interface access door, located in the unit control panel, and press the SERVICE
MODE key to display the first service screen. Refer to the latest edition of the RT-SVP01*-EN for
CV applications or RT-SVP02*-EN for VAV applications for the SERVICE TEST screens and
programming instructions.
6. Use Table 35, p. 108 to program the following system components for operation by scrolling
through the displays;
• 20 to 36 Ton
– Compressor 1A (On)
– Compressor 1B (Off)
– Condenser Fans
• 40 through 130 Ton
– Compressor 1A (On)
– Compressor 1B (Off)
– Compressor 2A (Off)
– Compressor 2B (Off)
– Condenser Fans
7. Attach a set of service gauges onto the suction and discharge gauge ports for each circuit. Refer
to Figure 59, p. 139 for the various compressor locations.
Compressor Start-Up (All Systems)
1. Ensure that the “System” selection switch at the
remote panel is in the “Off” position.
2. Before closing the disconnect switch, ensure that
the compressor discharge service valve and the
liquid line service valve for each circuit is back
seated.
NOTICE
Compressor Damage!
Do not allow liquid refrigerant to enter the suction
line. Excessive liquid accumulation in the liquid lines
could result in compressor damage.
COMPRESSOR SERVICE VALVES MUST BE FULLY
OPENED BEFORE START-UP (SUCTION, DISCHARGE,
AND LIQUID LINE).
3. Close the disconnect switch or circuit protector
switch that provides the supply power to the unit's
terminal block 1TB1 or the unit mounted
disconnect switch 1S14 to allow the crankcase
heater to operate a minimum of 8 hours before
continuing.
Figure 58. Fresh air and return air
linkage adjustment
RETURN AIR
DAMPERS
FRESH AIR
DAMPERS
FILTER
SECTION
2
1
3
4
5
6
7
8
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