Brochure

R503 Series (2353-5xx Series)
F-27383-1 © Copyright 2006 TAC. All Rights Reserved. 91
Specifications
Accessories
Typical Applications
Figure 1 R503-1, R503-2 Typical Application.
Figure 2 R503-3 Typical Application.
Control action Refer to Model Chart.
Construction Glass-filled nylon.
Maximum ambient temperature 140qF (60qC).
Supply air pressure Clean, dry, oil free air required.
Nominal 15 to 25 psig (103 to 172 kPa).
Maximum 30 psig (207 kPa).
Connections Barbed nipples for 1/4 in. O.D. polyethylene tubing.
Air consumption 29 scim(7.9 mL/s).
Air flow capacity 60 scfh (1.7 scmh).
Adjustments
Knob operates over two revolutions. A moving pointer slide is provided to indicate both inner and
outer scales.
Mounting
Designed for use on MCS-S manifold socket. These devices can also be surface mounted by using
the K503 mounting bracket.
Dimensions Refer to Model Chart.
Active Connections
Port Description
M Main.
S Signal.
S2 Signal 2 (R503-3 only).
CCommon.
NO Normally open.
NC Normally closed.
Model No. Wholesale Model No. Description
K503 22-151 Optional mounting bracket.
TOOL-082
 5/64 in. hex wrench.
M
SCNC NO
R503
Diverting Relay
Temperature
Transmitter
located in
Outdoor Air
N100-0010
M
M
To Minimum-Position
Switch for O.A., Return
and Relief DAmpers
From Air-Handling Unit
Mixed Air Controller
From Return Air
Enthalpy Transmitter (DA)
M
S
S2
CNC
NO
R503-3
Diverting Relay
M
From Temperature
Controller
To Minimum Position
Switch for Damper Actuators
From Outdoor Air
Enthalpy Transmitter (DA)