Carrier VECTOR 1800 MT - Page 97

62-11039 4-10
Range Lock 1 & 2
Range2issetfor
0° to --22°F
(--17.8° to --30°C)
Range1issetfor
+28° to +55°F
(--2.2° to +12.8°C)
--30 --23.3 --17.8 --12.2 --6.7 4.4 10.0 15.6--1.1 21.1 26.7
°C
-- 2 2 -- 1 0
0
10 20 40 50 6030 70
80
°F
Range 2
Range 1
In the same example as above, Range 1 or Range 2 can
be changed to lock the unit operation into Start--Stop.
The primary time that it is important to determine which
range is to be Range 1 and which is to be Range 2 is
when the ranges overlap each other.
In example 2 (Refer to Figure below), the ranges will be
set to lock all setpoints into Start--Stop, except for a
small range between 0° and 5.6°C(+32° and +42°F)
where the unit will always operate in Continuous Run.
Range 1 Minimum Temperature will be set for 0°C
(+32°F), and Maximum Temperature of 5.6°C(+42°F).
Range 2 will be set for a Minimum Temperature of --30°C
(--22°F) and a Maximum Temperature of 32°C
(+89.6°F).
--30 --23.3 --17.8 --12.2 --6.7 4.4 10.0 15.6--1.1 21.1 26.7
°C
-- 2 2 -- 1 0
0
10 20 40 50 6030 70
80
°F
Range 1 always has priority
whenRange1&2overlap
Range1issetfor32° to 42°F
(0° to 5.6°C)
Set for Continuous
Range2issetfor--22° to
89.6°F
(--30° to 32°C)
Set for Start--Stop