
Paragon D877-20 Timer
As a field technician, you understand that reliable defrost cycles are the backbone of any commercial refrigeration setup. The Paragon D877-20 Timer is a core component for commercial refrigeration defrost systems, specifically engineered for the Paragon RM Series. This 208-240V synchronous motor module utilizes odd-hour scheduling, making it a drop-in solution for walk-in freezer defrost control and complex cooler configurations. Unlike standard timers, the D877-20 features a solenoid termination option for instantaneous transfer at defrost initiation, ensuring precise management of heat and moisture removal. The unit is built with SPDT snap switches rated at 10A and a sealed, permanently lubricated gear train to withstand the rigors of mechanical room environments. With HVACR technical specifications supporting up to 12 operations per day and termination settings from 6 to 106 minutes, this defrost control module provides the granular timing necessary for high-efficiency system performance.
Technical Benefits for Contractors:- Precision Timing: Supports 1 to 12 operations per circuit daily with a minimum of 2 hours between cycles for optimized evaporator clearing.
- Solenoid Termination: Allows for immediate defrost termination via an external signal, preventing unnecessary heat gain in the refrigerated space.
- Industrial Durability: Features a heavy-duty synchronous motor and UL/CSA certified housing designed for long-term reliability in commercial applications.
- Universal RM Compatibility: Fits seamlessly into existing RM series defrost controls, reducing truck stock requirements for multiple system brands.
- Modular Flexibility: Designed to support up to 24 program modules with a single motor, allowing for expandable commercial HVAC maintenance solutions.
How do I wire the solenoid termination on the D877-20?
The D877-20 utilizes the solenoid to provide an instantaneous mechanical reset of the timer once the defrost termination thermostat (klixon) closes, ensuring the system returns to cooling mode without waiting for the mechanical fail-safe to time out.
Can this timer be used on 120V systems?
No, this specific model is a 208-240VAC 60Hz module. Attempting to run this on 120V will result in timing inaccuracies or motor failure. For 120V applications, check the specifications for the corresponding RM series module.
What is the difference between 'Odd Hour' and 'Even Hour' timers?
Odd hour timers like the D877-20 are used to stagger defrost cycles across multiple systems on a single site, preventing simultaneous heavy electrical loads on the facility's power supply.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $255.43
-65%$255.43
$89.40Paragon D877-20 Timer
As a field technician, you understand that reliable defrost cycles are the backbone of any commercial refrigeration setup. The Paragon D877-20 Timer is a core component for commercial refrigeration defrost systems, specifically engineered for the Paragon RM Series. This 208-240V synchronous motor module utilizes odd-hour scheduling, making it a drop-in solution for walk-in freezer defrost control and complex cooler configurations. Unlike standard timers, the D877-20 features a solenoid termination option for instantaneous transfer at defrost initiation, ensuring precise management of heat and moisture removal. The unit is built with SPDT snap switches rated at 10A and a sealed, permanently lubricated gear train to withstand the rigors of mechanical room environments. With HVACR technical specifications supporting up to 12 operations per day and termination settings from 6 to 106 minutes, this defrost control module provides the granular timing necessary for high-efficiency system performance.
Technical Benefits for Contractors:- Precision Timing: Supports 1 to 12 operations per circuit daily with a minimum of 2 hours between cycles for optimized evaporator clearing.
- Solenoid Termination: Allows for immediate defrost termination via an external signal, preventing unnecessary heat gain in the refrigerated space.
- Industrial Durability: Features a heavy-duty synchronous motor and UL/CSA certified housing designed for long-term reliability in commercial applications.
- Universal RM Compatibility: Fits seamlessly into existing RM series defrost controls, reducing truck stock requirements for multiple system brands.
- Modular Flexibility: Designed to support up to 24 program modules with a single motor, allowing for expandable commercial HVAC maintenance solutions.
How do I wire the solenoid termination on the D877-20?
The D877-20 utilizes the solenoid to provide an instantaneous mechanical reset of the timer once the defrost termination thermostat (klixon) closes, ensuring the system returns to cooling mode without waiting for the mechanical fail-safe to time out.
Can this timer be used on 120V systems?
No, this specific model is a 208-240VAC 60Hz module. Attempting to run this on 120V will result in timing inaccuracies or motor failure. For 120V applications, check the specifications for the corresponding RM series module.
What is the difference between 'Odd Hour' and 'Even Hour' timers?
Odd hour timers like the D877-20 are used to stagger defrost cycles across multiple systems on a single site, preventing simultaneous heavy electrical loads on the facility's power supply.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
As a field technician, you understand that reliable defrost cycles are the backbone of any commercial refrigeration setup. The Paragon D877-20 Timer is a core component for commercial refrigeration defrost systems, specifically engineered for the Paragon RM Series. This 208-240V synchronous motor module utilizes odd-hour scheduling, making it a drop-in solution for walk-in freezer defrost control and complex cooler configurations. Unlike standard timers, the D877-20 features a solenoid termination option for instantaneous transfer at defrost initiation, ensuring precise management of heat and moisture removal. The unit is built with SPDT snap switches rated at 10A and a sealed, permanently lubricated gear train to withstand the rigors of mechanical room environments. With HVACR technical specifications supporting up to 12 operations per day and termination settings from 6 to 106 minutes, this defrost control module provides the granular timing necessary for high-efficiency system performance.
Technical Benefits for Contractors:- Precision Timing: Supports 1 to 12 operations per circuit daily with a minimum of 2 hours between cycles for optimized evaporator clearing.
- Solenoid Termination: Allows for immediate defrost termination via an external signal, preventing unnecessary heat gain in the refrigerated space.
- Industrial Durability: Features a heavy-duty synchronous motor and UL/CSA certified housing designed for long-term reliability in commercial applications.
- Universal RM Compatibility: Fits seamlessly into existing RM series defrost controls, reducing truck stock requirements for multiple system brands.
- Modular Flexibility: Designed to support up to 24 program modules with a single motor, allowing for expandable commercial HVAC maintenance solutions.
How do I wire the solenoid termination on the D877-20?
The D877-20 utilizes the solenoid to provide an instantaneous mechanical reset of the timer once the defrost termination thermostat (klixon) closes, ensuring the system returns to cooling mode without waiting for the mechanical fail-safe to time out.
Can this timer be used on 120V systems?
No, this specific model is a 208-240VAC 60Hz module. Attempting to run this on 120V will result in timing inaccuracies or motor failure. For 120V applications, check the specifications for the corresponding RM series module.
What is the difference between 'Odd Hour' and 'Even Hour' timers?
Odd hour timers like the D877-20 are used to stagger defrost cycles across multiple systems on a single site, preventing simultaneous heavy electrical loads on the facility's power supply.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
