Specifications

InRow RC Operation and Maintenance10
Start-up
Caution: Starting the equipment in a high-humidity environment may lead to excessive
condensation and equipment shutdown.
Start-up sequence
1. Close all doors and windows. Ensure the room is sealed.
See “Room Preparation” in the InRow RC Installation manual.
2. Run the room cooling equipment until the “Acceptable Operating Conditions” dry bulb
temperature (db ºC or db ºF) and relative humidity (% RH) zone indicated in the chart below are
reached. Supplementary dehumidification and cooling equipment may be necessary to reduce
the humidity to acceptable levels. Do not proceed until all conditions in step 2 have been met.
3. Turn on the InRow RC.
4. Turn on the heat loads.
If the following sequence of events occurs, the room humidity is too high. Ensure step 1 (above) is
completed. InRow RC cooling units are not intended for dehumidification.
1. If the high-limit float device detects that the condensate pan is full, the Condensate Pan Full
alarm is recorded in the event log and the critical alarm LED activates.
2. The fans turn off and the chilled water valve closes completely.
3. The condensate pump continues to operate until the low-limit float is deactivated, which clears
the alarm.
4. The equipment resumes normal operation.
5. Subsequent activation of the high-limit float results in repeating steps 1 through 4 until room
conditions are reduced to the acceptable level as shown in the chart below.
InRow RC Operating Guidelines
50
60
70
80
90
100
110
120
30.0 40.0 50.0 60.0 70.0 80.0
10
15
20
25
30
35
40
45
50
% Relative Humidity
D
r
y
b
u
l
b
°
C
D
r
y
b
u
l
b
°
F
Unacceptable operating
conditions
Acceptable operating
conditions