TCS SZ2161 Heat Pump Water Loop Controller
Heat Pump Water Loop Controller 6 RTD inputs, 5 digital inputs, 2 analog outputs, 12 digital outputs
US$942.73
Availability:
In stock
SKU
SZ2161
Description
The SZ2161 is a microprocessor-based controller designed for water source heat pump plant control applications.
Features:
• Stand-alone or network operation
• 365-day time clock with two holiday schedules, automatic leap year and daylight savings correction
• No backup battery required for control parameters, schedule or clock
• Supply and return condenser water temperature inputs
• Supply and return loop water temperature inputs
• Outdoor air temperature input
• Boiler supply water temperature input
• Four digital inputs for status
• External time clock input
• Local override and remote override capability
• 12 digital outputs for control of
• damper
• spray pump
• 2 loop pumps
• 2 boiler pumps
• 2 fan speed selections
• 4 boiler stages
• Adjustable offsets and differentials on relay outputs
• Two modulating analog output for speed drive or boiler
• Mixing valve control
• LEDs for monitoring status
• Automatic rotation of pumps
• Automatic rotation of boiler stages
Specifications:
General Accuracy: +/- 0.5%
Programming: EIA RS485 interface
Communications: RS485, half duplex
Memory backup: Non-volatile EEPROM, no battery required
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 VAC +/-20%
Inputs: Six 1000Ω PtRTD, momentary override and five digital (dry contact)
Range: Loop water supply and return: 20 to 120°F Condenser water supply and return: 20 to 120°F
Boiler water: 40 to 240°F
Outdoor air temp: -40 to 160°F
Outputs: 12 digital (SPST dry contact, 24 VAC @2A) analog and Two 4 to 20 mA DC
Max load resistance (analog output): 600 Ω
Common mode rejection: 100 db @ 60 Hz
Power consumption: 15 VA max.
Specifications subject to change without notice.
Write Your Own Review