The Robertshaw® 1751 Series Add-on Pressure Regulator Kits are available for use on the following factory model types: 7000, 7010, 7100, 7200 and 7222. Each 1751 pressure
regulator kit provides straight-line regulation and includes all the necessary parts including instructions to convert a specific factory model gas valve.

Features and Benefits

Converts natural gas to LP
Not for use with hydraulic models which cannot be field converted
Includes all necessary parts for easy regulation conversion

KVP/KVL/KVR/NRD/KVC/CPCE - Pressure Regulators
Danfoss has a variety of pressure regulators to control the low and
high pressure sides and efficient function of a refrigeration system
under varying load conditions.
Pressure regulators include:
• Evaporator Pressure Regulator (KVP)
• Crankcase Pressure Regulator (KVL)
• Condensing Pressure Regulator (KVR)
• Differential Pressure Regulator (NRD)
• Hot Gas Bypass Valves (KVC/CPCE)

KVP/KVL/KVR/NRD/KVC/CPCE - Pressure Regulators
Danfoss has a variety of pressure regulators to control the low and
high pressure sides and efficient function of a refrigeration system
under varying load conditions.
Pressure regulators include:
• Evaporator Pressure Regulator (KVP)
• Crankcase Pressure Regulator (KVL)
• Condensing Pressure Regulator (KVR)
• Differential Pressure Regulator (NRD)
• Hot Gas Bypass Valves (KVC/CPCE)

Features
Features A421 Standard model
Control Front Panel LCD:
Displays the temperature, parameters, and status and allows you to adjust the backlight intensity for ambient light conditions. Custom icons display the system and control status.
Basic and Advanced Programming Menu:
Provides two levels of parameter adjustment and control setup, allowing you to set up advanced features in one menu and easily adjust basic parameters in the other menu.
On/Off Temperature Adjustment:
Allows you to select the temperature values at which the relay turns On and Off, which automatically defines the Heating or Cooling mode of operation.
Switch-Activated Temperature Setback:
Allows you to shift the On/Off temperature by an adjustable setback value. When a user-supplied switch closes the binary input control circuit, the control operates at the defined setback temperatures.
Adjustable Anti-Short Cycle Delay:
Allows you to select the minimum time the output relay remains off before the next on cycle; avoiding short cycling, hard starts, and nuisance overload outages on compressors and other inductive applications.
Adjustable Sensor Offset:
Allows you to adjust the displayed temperature to the actual sensed temperature.
Optional Restricted Adjustment Mode:
Allows you to restrict the On/Off adjustment to your defined temperature range.
Sensor Failure Mode:
Allows you to select the relay On/Off state in the event of a sensor or sensor wire failure.
Backlight Brightness Level:
Allows you to adjust the LCD backlight intensity.
Extra Features A421 Defrost model
Off-Cycle Defrost:
Allows you to shut off the refrigeration system for defined defrost time interval and frequency. You can also start or stop a manual only defrost offcycle.
Extra Features A421 Timer model
Free-Cooling and Ventilation:
Allows you to adjust for free-cooling and timed-ventilation, and provides over-cooling protection.

KPU - Pressure Switches
KPU pressure switches are designed to be contractor friendly and used in refrigeration and air-conditioning systems to protect the systems
from excessively low suction or high discharge pressure. They can also be applied to start and stop compressors and the fans of air-cooled
condensers. KPU pressure switches, in single and dual versions, cover a comprehensive range of applications and are designed for use with
Fluorinated and non-aggressive refrigerants. Most KPU pressure controls can be used with R-410a systems with only a few code numbers.

Your team works tirelessly to ensure that every piece of machinery operates at peak efficiency, but interruptions due to retensioning result in costly downtime.
With Gates first maintenance-free premium V-belt, you're investing in a long-lasting solution that eliminates retensioning downtime and reduces replacement cycles, allowing your team to focus on the job without interruptions.
Featuring up to a 30% increase in power rating, Quad-Power 4 is engineered to offer next-gen torque capacity and optimize power transfer with unparalleled efficiency. The minimal-stretch cord technology of the belt reduces tension decay and delivers up to 200%* longer belt life and exceptional wear resistance, even in extreme temperatures.
Quad-Power 4 meets ARPM IP-3-3 and ISO 1813 static-conductivity standards, as well as ARPM IP-3-2 for oil and chemical-resistance standards.

RECOMMENDED FOR: high-horsepower and heavy-duty applications where durability and performance are crucial. These belts are commonly used in large facilities HVAC systems, agricultural equipment, food processing machinery and deep freeze warehouses, truck and bus accessory drives, and highway repair equipment.
FOR USE WITH: ARPM and ISO standard V-belt pulleys.

Your team works tirelessly to ensure that every piece of machinery operates at peak efficiency, but interruptions due to retensioning result in costly downtime.
With Gates first maintenance-free premium V-belt, you're investing in a long-lasting solution that eliminates retensioning downtime and reduces replacement cycles, allowing your team to focus on the job without interruptions.
Featuring up to a 30% increase in power rating, Quad-Power 4 is engineered to offer next-gen torque capacity and optimize power transfer with unparalleled efficiency. The minimal-stretch cord technology of the belt reduces tension decay and delivers up to 200%* longer belt life and exceptional wear resistance, even in extreme temperatures.
Quad-Power 4 meets ARPM IP-3-3 and ISO 1813 static-conductivity standards, as well as ARPM IP-3-2 for oil and chemical-resistance standards.

RECOMMENDED FOR: high-horsepower and heavy-duty applications where durability and performance are crucial. These belts are commonly used in large facilities HVAC systems, agricultural equipment, food processing machinery and deep freeze warehouses, truck and bus accessory drives, and highway repair equipment.
FOR USE WITH: ARPM and ISO standard V-belt pulleys.

SGP - Sight Glasses
Danfoss sight glasses with hard crystal view ports are designed to accurately indicate the presence of moisture in refrigeration and airconditioning
systems. When system moisture content rises above permissible levels, the “dry/green” indicator will change to yellow indicating
a “wet” system. The indication of dangerous moisture levels is essential in helping prevent the formation of harmful acids which are detrimental
to the system. The SGP sight glass is simply the best-made sight glass available today.

114N3586 OPTYMA™ OUTDOR SLIM (LOW AMBIENT KIT) MED 4HP 3PH
Compressor power supply [V]: 230/3/60
OP-HNXM0400UWK000Q

R448A/R449A Capacity range: 34040 BTU/hr (Ambient Temp. = 95°F , evaporating temperature =25°F), Power consumption 4455W, AWEF 9.40

R404A/R507 Capacity range: 36450 BTU/hr (Ambient Temp. = 95°F , evaporating temperature =25°F), Power consumption 4596W, AWEF 9.62

114N3583 OPTYMA™ OUTDOR SLIM (LOW AMBIENT KIT) MED 3.5HP 1PH
Compressor power supply [V]: 230/1/60
OP-HNXM0350UWK000N

R448A/R449A Capacity range: 28890 BTU/hr (Ambient Temp. = 95°F , evaporating temperature =25°F), Power consumption 3826W, AWEF 9.22

R404A/R507 Capacity range: 31910 BTU/hr (Ambient Temp. = 95°F , evaporating temperature =25°F), Power consumption 3829W, AWEF 10.33

CU CC SCRL 2.5HP 208-230/1/60 MED
Ambient Temp : 95 °F
Suction Temp : 25 °F
Voltage : 208-230/1/60
Application Capacity* : 22,860 BTU/H
Refrigerant Type : R404A
AWEF Value : 7.6

The A421 Series Electronic Temperature Controls are single-stage controls with a single-pole, double-throw (SPDT) output relay. A421 Controls feature a bright backlit LCD with adjustable brightness and a three-button touchpad interface that can be set up to restrict user adjustments. An LED indicates the output relay's On/Off status. Standard A421 Series control modules have simple On and Off temperature settings for heating or cooling, an adjustable anti-short cycle delay, temperature setback, and sensor offset capability. The temperature control range is -40 to 212°F or -40 to 100°C. The A421 controls are available either in Type 1 (NEMA), IP20 (CE), high-impact plastic enclosures suitable for surface or DIN rail mounting or in Type 4X (NEMA), IP67 (CE) watertight, corrosion resistant surface mount enclosures.

The A421 Electronic Temperature Control can be used to control a wide variety of single-stage refrigeration or HVAC equipment.Sample temperature control applications can be found inside the product data sheet.

A421ABC-02:
Type 1 (NEMA), IP20 standard enclosure for DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-200C temperature sensor with 6 ft 7-1/5 in. (2.0 m) cable

CU CC SCRL 0.8HP 208-230/1/60 MED
Ambient Temp : 95 °F
Suction Temp : 25 °F
Voltage : 208-230/1/60
Application Capacity* : 8,980 BTU/H
Refrigerant Type : R404A
AWEF Value : 7.6

KPU - Pressure Switches
KPU pressure switches are designed to be contractor friendly and used in refrigeration and air-conditioning systems to protect the systems
from excessively low suction or high discharge pressure. They can also be applied to start and stop compressors and the fans of air-cooled
condensers. KPU pressure switches, in single and dual versions, cover a comprehensive range of applications and are designed for use with
Fluorinated and non-aggressive refrigerants. Most KPU pressure controls can be used with R-410a systems with only a few code numbers.

Your team works tirelessly to ensure that every piece of machinery operates at peak efficiency, but interruptions due to retensioning result in costly downtime.
With Gates first maintenance-free premium V-belt, you're investing in a long-lasting solution that eliminates retensioning downtime and reduces replacement cycles, allowing your team to focus on the job without interruptions.
Featuring up to a 30% increase in power rating, Quad-Power 4 is engineered to offer next-gen torque capacity and optimize power transfer with unparalleled efficiency. The minimal-stretch cord technology of the belt reduces tension decay and delivers up to 200%* longer belt life and exceptional wear resistance, even in extreme temperatures.
Quad-Power 4 meets ARPM IP-3-3 and ISO 1813 static-conductivity standards, as well as ARPM IP-3-2 for oil and chemical-resistance standards.

RECOMMENDED FOR: high-horsepower and heavy-duty applications where durability and performance are crucial. These belts are commonly used in large facilities HVAC systems, agricultural equipment, food processing machinery and deep freeze warehouses, truck and bus accessory drives, and highway repair equipment.
FOR USE WITH: ARPM and ISO standard V-belt pulleys.

Your team works tirelessly to ensure that every piece of machinery operates at peak efficiency, but interruptions due to retensioning result in costly downtime.
With Gates first maintenance-free premium V-belt, you're investing in a long-lasting solution that eliminates retensioning downtime and reduces replacement cycles, allowing your team to focus on the job without interruptions.
Featuring up to a 30% increase in power rating, Quad-Power 4 is engineered to offer next-gen torque capacity and optimize power transfer with unparalleled efficiency. The minimal-stretch cord technology of the belt reduces tension decay and delivers up to 200%* longer belt life and exceptional wear resistance, even in extreme temperatures.
Quad-Power 4 meets ARPM IP-3-3 and ISO 1813 static-conductivity standards, as well as ARPM IP-3-2 for oil and chemical-resistance standards.

RECOMMENDED FOR: high-horsepower and heavy-duty applications where durability and performance are crucial. These belts are commonly used in large facilities HVAC systems, agricultural equipment, food processing machinery and deep freeze warehouses, truck and bus accessory drives, and highway repair equipment.
FOR USE WITH: ARPM and ISO standard V-belt pulleys.

EVR Version 2 - Solenoid Valves
EVR Version 2 solenoid valves are direct or servo-operated solenoid valves for liquid, suction, and hot gas lines. They are suitable for all
refrigeration, freezing, and air conditioning applications and are compatible with fuorinated refrigerants. The valves can be delivered as
normally open or closed as well as with or without manual operation.

KVP/KVL/KVR/NRD/KVC/CPCE - Pressure Regulators
Danfoss has a variety of pressure regulators to control the low and
high pressure sides and efficient function of a refrigeration system
under varying load conditions.
Pressure regulators include:
• Evaporator Pressure Regulator (KVP)
• Crankcase Pressure Regulator (KVL)
• Condensing Pressure Regulator (KVR)
• Differential Pressure Regulator (NRD)
• Hot Gas Bypass Valves (KVC/CPCE)

Your team works tirelessly to ensure that every piece of machinery operates at peak efficiency, but interruptions due to retensioning result in costly downtime.
With Gates first maintenance-free premium V-belt, you're investing in a long-lasting solution that eliminates retensioning downtime and reduces replacement cycles, allowing your team to focus on the job without interruptions.
Featuring up to a 30% increase in power rating, Quad-Power 4 is engineered to offer next-gen torque capacity and optimize power transfer with unparalleled efficiency. The minimal-stretch cord technology of the belt reduces tension decay and delivers up to 200%* longer belt life and exceptional wear resistance, even in extreme temperatures.
Quad-Power 4 meets ARPM IP-3-3 and ISO 1813 static-conductivity standards, as well as ARPM IP-3-2 for oil and chemical-resistance standards.

RECOMMENDED FOR: high-horsepower and heavy-duty applications where durability and performance are crucial. These belts are commonly used in large facilities HVAC systems, agricultural equipment, food processing machinery and deep freeze warehouses, truck and bus accessory drives, and highway repair equipment.
FOR USE WITH: ARPM and ISO standard V-belt pulleys.

The Robertshaw® 1900 Series Thermocouples include either a special low-mass or quick dropout thermocouple. It is usually found on applications that require an oxygen depletion system on the thermo safety. It is also found on many LP gas applications that require a quick dropout of the thermo safety if there is a loss of pilot flame. The Robertshaw 1980 Series Snap-Fit® Thermocouples offer easy installation into the majority of pilot burners. They are manufactured without complicated adaptors, but with extra insulation that the brass sheath provides under high ambient temperatures.

Features and Benefits
Easy burner installation with attached threaded nut
Stainless steel outer jacket for long life and resistance to heat blistering
Combination of copper and nickel alloys for good electrical conductivity
Mica washer to insulate from shorting conditions
Tinnerman clip included
Various lengths available for multiple applications

CU CC SCRL 1.0HP 208-230/1/60 MED
Ambient Temp : 95 °F
Suction Temp : 25 °F
Voltage : 208-230/1/60
Application Capacity* : 12,200 BTU/H
Refrigerant Type : R404A
AWEF Value : 7.6