Johnson T500 Series User Manual

T500 Series Non-Programmable Thermostats Product/Technical Bulletin
9
Not Used
Single Stage
LED 1 Icon Off
LED 2 Icon Off
Heat/Cool: 4 Minute
(Minimum On)
Keyboard Unlocked
ON
1
3
2
4
5
6
Heat/Cool: 2 Minute
(Minimum On)
Keyboard Locked
7
8
LED 1 Icon
(Filter)
LED 2 Icon
(Wrench/Fault)
Not Used
Multi-stage
Compressor/Auxiliary
Interlocked
Compressor/Auxiliary
Normal
Economy
Comfort
Figure 9: T500HPN-1 Factory-Set DIP Switch
Settings
LED1
LED2
CLK1
CLK2
RS2
RS1
RS+V
Y2
W1
Y1
1st Stage Heating
1st Stage Cooling
Fan
Cool Reversing Valve
Heat Reversing Valve
Hpn-1wire
2nd Stage Heat Pump
Common
24VAC
Figure 10: T500HPN-1 Wiring Configuration
Table 5: T500HPN-1 Output Terminal
Designations
Terminal Function
Y2
Energizes compressor No. 2 on a call
for second-stage heating or cooling
W1
Energizes auxiliary stage heat as
third-stage heating or emergency heat
Y1
Energizes compressor No. 1 on a call
for second-stage heating or cooling
G
Energizes fan on a call for heating or
cooling or by pressing
Fan
button
R
Independent switching voltage
24V
24 VAC from equipment transformer
24V(c)
24 VAC (common) from equipment
transformer
LED 1
LED 2
Input connection that energizes LED 1
or LED 2 from remote status device
(See Figure 10 and Table 7.)
CLK1
CLK2
Connections for remote clock/timer for
alternate setpoints
RS2
RS1
RS+V
Connections for outdoor air
temperature or indoor remote sensors;
refer to instructions included with
sensors
O
Energizes reversing valve in the
cooling mode
B
Energizes reversing valve in the
heating mode

Johnson T500 Series Specifications

General

Brand	Johnson
Model	T500 Series
Category	Thermostat
Language	English