Product Overview

System 450™ Series Modular Controls Product Bulletin 11
Figure 13 shows a System 450 Reset Control System
for a natatorium/swimming pool application that uses
temperature and humidity input sensors; and analog
and relay outputs to control the heating equipment,
dehumidification equipment, make-up air dampers, and
exhaust air dampers.
Figure 13: System 450 Reset Control System Example for a Natatorium/Swimming Pool Zone
LC1
LNO1
LNC1
LC2
LNO2
LNC2
240
VAC
120
VAC
L1
L2
L1
L2
L1 L2
HE-67Sx-x Humidistat (Control Room Humidity)
(Sensor Sn-2 in Setup UI)
C450RCN-x
C450YNN-1
Control Module
with 2 Relays
Power
Module
Expansion
Module with
1 Analog
C450SPN-x
COM
AO1
PWR
COM
OUT
%RH
Output 1 references sensor rES.
Output 2 references sensor Sn-3 (temperature).
Output 3 references
Sensor Sn-3.
Fig:sys450_wirng_natpool
Control Room
Temperature
(Sn-3)
Active/Passive
Sensor Jumpers
(See )Jumper Settings
Sn-1
Sn-2
Sn-3
Sensor 1: Jumper positioned across two pins
sets Sn-1 to Passive (Temperature).
Jumper positioned on one pin
(or removed) sets Sn-2 to Active (Humidity).
Jumper positioned across two pins
sets Sn-3 to Passive (Temperature).
Sensor 2:
Sensor 3:
Sn-1
Sn-2
Sn-3
Jumper Settings