Category:

SZ1018

Modulating Zone Thermostat

Description
The SZ1018 is specifically designed for the
Superzone Commercial Zoning System (Superzone
CZS) and pressure dependent VAV systems. The
SZ1018 has a 7-day time clock and is used for
zoning applications with modulating zone damper
and reheat or peripheral heat.
Features:

• Stand-alone or network operation
•7-day time clock
•Discharge air sensor input with high and low limits and
reset
•Discharge air heating low limit
•Midpoint or endpoint modulation
•Analog or digital changeover
• Outdoor air sensor input with heating & cooling
lockout
• Up to two stages for heating and/ or cooling and a
modulating heating or cooling output
•Midpoint or endpoint modulation
• Adjustable delay on start-up and power-up for soft
starts
•P+I control option on digital stages
• Smart recovery
• No backup battery required
• Minimum on/off times for HVAC equipment
protection
• 32 character LCD display
• Six status LEDs
• Remote room sensing capability
• User setpoint adjustment limits
• Local and remote override capability
• System and fan switching with access lockouts
• Auxiliary time clock output (economizers)
• Fan interlock safety option
• Filter service input and indication
• Equipment monitoring inputs and indication
• External time clock input
• Energy management input for setpoint shift
• Access to programming or schedule may be locked
out or limited with the use of an access code
• Fahrenheit or Celsius temperature display

Call to order:

1-800-288-9383

Specs & Docs

Specifications:

General
Accuracy:
+/- 1ºF at 75ºF
Display resolution:
+/-1°F (0.6°C)
Display:
32-character LCD
Programming:
Front panel keypad or
EIA RS485
interface
Communications:
RS485, half duplex
Memory backup:
Non-volatile EEPROM,
no battery required
Override:
Programmable from 0 to 255 minutes
Environmental
Operating temperature:
32 to 131°F (0 to 55°C)
Operating humidity:
0 to 100% RH, non-
condensing
Storage
temperature:
14 to 140°F (-10 to 60°C)
Electrical
Supply voltage:
24 V
AC
+/- 20%
Inputs:
Built-in and remote platinum RTDs,
momentary over
ride and three digital (dry contact)
Range: Room Temp: 40 to 90
°F (built-in or
remote)
Outdoor Air Temp: -40 to 160°F (remote)
Discharge Air Temp: 0 to 150°F (remote)
Outputs:
Four digital (SPST dry contact,
24 VAC @ 2 A), two 4-20 mA DC analog
Max. Load Resistance (analog output):
600
Common mode rejection:
100 db @ 60 Hz
Power Consumption:
8 VA max.
Specifications subject to change without notice.