2-- 8
© 2012 Mobile Climate Control T-299 Rev. 08/2012
2.9 EnviroMATE Controller (Single Zone)
1
2
3
4
5
6
7
72.0
Figure 2-8 EnviroMATE Control Panel
1Display
2 Vent Key
3On/OffKey
4 FreshAirDamperKey
5 Decrease Selection Key
6 Increase Selection Key
7 Cool/Heat Key
The Control Panel consist of the main CPU and
keypad to control the air conditioning system
operation. It is equipped with a numerical display to
view operation status, fan speed and tem peratures.
The Controller is designed to automatically operate
system components to maintain desired temperature
set point.
NOTE
Controller parameters are factory set, and
cannot be modified without factory au
thorization. If necessary, contact MCC's
Technical Service Hot Line for assist
ance (800-450-2211) .
2.9.1 Controller Operation
Once the EnviroMATE controller is powered with
12VDC, supplied by the Bus OEM, the system can
be turn On or Off using the On/Off key (Item 3 in
Figure 2-8). When the display is powered On, the
controller will go through self test mode, and then
the current set point will be displayed. To adjust the
temperature set point up or down, use the
Increase/Decrease selection keys (Items 5 and 6 in
Figure 2-8). Temperature set point can b e set from
64°Fto82°F (17.8°C to 27.8°C)
The controller is equipped with two temperature
sensors to monitor the evaporator return air
temperature, and the outside air temperature. To
view the return air temperature, press and hold the
Increase Selection Key for 3 seconds (Item 6 in
Figure 2-8) . To view the outside air temperature,
press and h o ld t h e Decrease Selection Key (Item 5 in
Figure 2-8).
2.9.2 Evaporator Fan Operation
Evaporator fan speeds are controlled automatically
according to the chart shown below. There are 3 fan
speeds controlled by relays mounted to an auxiliary
electrical p anel.
8_F
4_F
2_F
Temperature
Decreasing
Temperature
Decreasing
Temperature
Increasing
Temperature
Increasing
(4.4°C)
(2.2°C)
(1.1°C)
To Next Page
Loading...
