Product data

14
Typical LEN (Local Equipment Network) mode
Allows unit software access with Navigator™ or Scrolling
Marquee accessories. Both have unit diagnosis and
configuration abilities. Thermostat required for stand-alone
operation, timeclock required to provide unit schedule
(occupied/unoccupied) for sensor applications.
Controls (cont)
Run Status
Service Test
Temperature
Pressures
Setpoints
Inputs
Outputs
Configuration
Time Clock
Operating Modes
Alarms
Alarm Status
ENTER
MODE
ESCAPE
ROOFTOP
UNIT WITH
PREMIERLINK
CONTROL
ROOFTOP
UNIT WITH
PREMIERLINK
CONTROL
ROOFTOP
UNIT WITH
PREMIERLINK
CONTROL
R
u
n
S
t
a
t
u
s
S
e
r
v
ic
e
T
e
s
t
T
e
m
p
e
r
a
tu
r
e
s
P
r
e
s
s
u
r
e
s
S
e
t
p
o
in
t
s
I
n
p
u
t
s
O
u
t
p
u
t
s
C
o
n
f
ig
u
r
a
ti
o
n
T
im
e
C
l
o
c
k
O
p
e
r
a
t
in
g
M
o
d
e
s
A
l
a
r
m
s
ENTER
ESC
MODE
A
l
a
r
m
S
t
a
t
u
s
L
e
a
v
in
g
W
a
t
e
r
T
e
m
p
e
r
a
tu
r
e
44.0
°F
N
A
V
I
G
A
T
O
R
™
ComfortLink
MODE
FAN
MODE
FAN
MODE
FAN
NAVIGATOR
MODULE (DIRECT
ACCESS AT UNIT)
SCROLLING
MARQUEE (UNIT
MOUNTED)
TSTAT
TSTAT
TSTAT
9 WIRE
COM
BUS*
9 WIRE
COM
BUS*
LEN
LEN
CO T55
2
CO T55
2
TM
ACCESSORY
ACCESSORY
*9 Wire COM Bus includes:
2 temperature sensor wires
3 LEN communications wires
4CO
2
sensor wires
Functions:
1. Provide Space Temperature for outdoor air comparison (EconoMi$er mode)
2. Provides override of DCV (demand control ventilation) in “low priority”
3. Provides temperature capability in “high priority” (too low SAT-initial heat)
4. Provides Navigator control access to the unit
TYPICAL LEN (LOCAL EQUIPMENT NETWORK)