Brochure

10
Please fax/email orders to:
416-352-5981/[e-mail]
For technical assistance call:
Toll Free: 866-375-HVAC (4822)
www.na.heating.danfoss.com
TECHNICAL INFORMATION
Comfort Control:
Control of the space temperature at a
comfortable level is easily accomplished
by adjusting the dial clockwise or counter-
clockwise. The dial has a numbered scale of 1 to 5
corresponding to temperatures of approximately
57°F to 79°F (14°C to 26°C).
Should the space be unoccupied for an extended
period, the dial can be set to the “ * ”symbol for
freeze protection (50°F or 9°C) to save energy.
Temperature locking or limiting features are
included.
Indicated temperatures are approximate.
Adjust the dial to the desired setting.
Indicator Tab
Design and Function:
The RA 2000 thermostatic operator consists
of a saturated vapor charged bellows and a
setting dial. The dial is set to the position equal
to the desired temperature. When the ambient
temperature lowers, the pressure from the
bellows will reduce, allowing the valve to open. A
rise of temperature increases the pressure in the
bellows closing the valve. The balanced pressures
between the adjustment spring and the bellows
ensure a smooth and modulating operation of
the valve. Danfoss RA 2000 are manufactured
to the highest quality standards in an ISO 9001
factory.
No. Description:
1- Operator setting dial (ABS)
2- Vapor charged bellows
3- Safety spring (steel)
4- Adjustment spring (steel)
5- Locking/limiting pin (steel)
6- Pressure spindle (plastic)
7- Snap-on mounting ring (plastic)
8- Valve body (nickel plated brass)
9- Union nut (nickel plated brass)
10- Tailpiece (nickel plated brass)
11- Valve disc (EPDM)
12- Valve spindle (brass)
13- Valve spring (stainless steel)
14- Back seat washer (EPDM)
15- Valve bonnet (brass)
16- Pressure pin (stainless steel)
17- Packing o-ring (EPDM)
18- Packing gland (DRZ brass)
RA2000 TECHNICAL INFORMATION