Category:

SZ1041

Programmable 365-Day Modulating Thermostat

Description
The SZ1041 has a 365-day time clock and is
designed for conventional heating and cooling
applications with modulating economizers.
Features:

• Stand-alone or network operation
• 365-day time clock with two holiday schedules
with automatic leap year and daylight savings
correction
• Discharge air sensor input for economizer
functions
• Outdoor air sensor input with heating & cooling
lockouts
• Two stages each of heating and cooling
• 4 to 20 mA analog output for economizing
• Adjustable delay on power-up and start-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
• 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
• Digital enthalpy switch input for economizer
enable

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
Program Setting:
2 events per day with 7 days per
week and 2
holiday schedules (12 periods of up
to 99 days each)
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:
Five digital (SPST dry contact, 24 VAC
@ 2 A), one 4-20 mA DC analog
Max. Load Resistance (analog output):
600
Common mode rejection:
100 db @ 60 Hz
Power Consumption:
8 VA max.