Brochure
Table Of Contents
- TABLE OF CONTENTS
- T775 APPLICATION TIPS
- COMPATIBLE COMPONENTS
- FEATURES
- T775 OPERATIONS
- T775 APPLICATIONS
- Water Source Heat Pump Loop Water Controller - T775B
- Chiller - T775B
- Chiller, Rotary Compressor - T775B
- Cooling Tower Control - T775B2040
- Time-based Control of Fan, Pump, etc. - T775 (all models)
- Damper or Valve Modulation - T775M or T775R
- Hot Water Reset - T775R
- Chilled Water Reset - T775R
- Multi-Stage Boiler Control (No Reset) - T775P
- Multi-Stage Boiler Control (Reset) - T775P
- Multi-Stage Boiler Control (Reset) (continued)
- Multi-Stage Chiller Control (No Reset) - T775P
- 4 Stage with Pump Output and Reset - T775P using a T775S Expansion Module
- 4 Stage with Pump Output and Reset (continued)
- 3 Stage Reciprocating Chiller - T775L
- 4 Stage Heat and 6 Stage Cool - T775L
- 4 Stage Heat and 6 Stage Cool (continued)
- Pressure with a Variable Frequency Drive (VFD) - T775U
- Carbon Dioxide (CO2) Sensing - T775U
- T775 APPLICATION REPLACEMENT EXAMPLES
- T775M2030 Replacement for W973A Logic Panel
- T775M2030 Replacement for W973A Logic Panel (continued)
- T775M2030 Replacement for W973A Logic Panel (continued)
- T775R Replacement for W964F Aquatrol Panel with Floating Actuator
- T775R Replacement for W964F Aquatrol Panel with Floating Actuator (continued)
- T775R Replacement for W964F Aquatrol Panel with Floating Actuator (continued)
- T775L Replacement for S984 Step Controller
- T775L Replacement for S984 Step Controller (continued)
- T775L Replacement for W7100C Discharge Air Controller
- T775L Replacement for W7100C Discharge Air Controller (continued)
- T775L Replacement for W7100C Discharge Air Controller (continued)
- T775 CROSS REFERENCE
- NOTES
T775 SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
63-7147—3 40
T775 CROSS REFERENCE
Table 7 lists the manufacturers in the following order:
• Johnson (System 350) — beginning on page 40
• Honeywell — beginning on page 41
• Johnson (Mechanical) — beginning on page 44
• White Rogers — beginning on page 47
• Barber Colman — beginning on page 48
• Ranco — beginning on page 49
• Tekmar — beginning on page 50
Table 7. Cross Reference.
Old
Control Manufacturer
Temperature ° F
/ Humidity
Range (RH)
Switch
Action
Cap
Length
Recommended
Honeywell
Electromechanical
Replacement
Honeywell
Well #
(Order Sep.)
Recommended
Honeywell
Electronic
Replacement
Honeywell
Well #
(Order Sep.) Comments
NOTE: For all T775 Series 2000 Controllers, the Setpoint Temperature Range is -40° to 248° F (-40° to 120° C).
Johnson System 350
A350A/B Johnson T775A2009 Johnson model: 1 SPDT temperature
A350A/B with
1 S350
Johnson T775B2032 Johnson model: Multiple SPDT temperature
A350A/B with
up to 3 S350s
Johnson T775B2040 Johnson model: Multiple SPDT temperature
A350A/B with
more than 3
S350s
Johnson T775B2040 plus
additional
T775Bs as
needed.
Johnson model: Multiple SPDT temperature
A350P Johnson T775M2006 Johnson model: 1 mod temperature
A350P with
up to 2 S350s
Johnson T775M2048 Johnson model: 1 mod temperature with relays
A350P with
up to 4 S350s
Johnson T775M2030 Johnson model: 1 mod temperature with relays
A350R with
up to 3 S350s
Johnson T775R2001 or
T775R2035
Johnson model: Mod temperature with reset and
SPDTs
A350S with
up to 4 S350s
Johnson T775R2001 or
T775R2035
Johnson model: Mod temperature with reset and
SPDTs
A350P with
A350R
Johnson T775R2043 Johnson model: 1 mod temperature with reset
A350P with
A350R and
multiple
S350s
Johnson T775R2027 or
T775R2019
Johnson model: 1 mod temperature with reset and
SPDTs