TCS Basys Controls SZ1022N Product Manual

Product Manual

Description

The SZ1022N and SZ1024N are microprocessor-based
programmable thermostats designed for conventional
multistage heating-and-cooling and heat pump applications,
respectively. Both the SZ1022N and SZ1024N feature a 7-day
time clock.

Features

Stand-alone or network operation
Discharge air sensor input with high and low limits
The SZ1022N offers up to three stages heating and two
stages cooling, or two stages heating and three stages
cooling, while the SZ1024N offers up to two compressor
and two auxiliary heat stages
Adjustable delay on powerup for soft starts
P+I control option
Smart Recovery
No backup battery required
Built-in HVAC equipment protection
32 character LCD display
Six LEDs for status monitoring
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
2800 LAURA LANE • MIDDLETON, WI 53562 • (800) 288-9383 • FAX (608) 836-9044 • www.tcsbasys.com
SZ1022N/SZ1024N
Conventional Multistage
Heating & Cooling/Heat Pump
Thermostats
Communicating Thermostats
Contents
Description ...............................................................................1
Features ....................................................................................1
Mounting ..................................................................................1
Wiring.......................................................................................2
N2 Bus Connections ................................................................2
Setup.........................................................................................3
Programming............................................................................4
Setting Clock and Schedule .....................................................7
Operation..................................................................................8
Checkout and Troubleshooting ................................................9
LED Description ....................................................................11
Limiting Occupant Access .....................................................12
User's Guide ..........................................................................12
N2 Point Mapping Table (SZ1022N).....................................13
N2 Point Mapping Table (SZ1024N).....................................16

Mounting

The SZ1022N and SZ1024N are designed for wall mounting
using two #6 sheet metal screws, either over a horizontally
installed 2" x 4" junction box, or directly to block or drywall.
For best results, the thermostat should be mounted on an
interior wall which reflects normal room environment, at a
height of approximately five feet from the floor. Avoid areas
exposed to direct sunlight, unusual heat sources, open doors
and windows, or unventilated locations.
If using a remote room sensor, it should be mounted in the
manner described above. The thermostat may be mounted in
an area which is accessible for adjusting its settings.
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Version 1.2