Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480066-01 Printed in U.S.A. Form 48/50-75SI Pg 1 8-09 Replaces: 48/50A,Z-2SI
Installation and Operating Instructions
Part Number CRSTATUS002A00
PACKAGE USAGE AND CONTENTS
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform the basic maintenance
functions of replacing filters. All other operations should be
performed by trained service personnel. When working on
air-conditioning equipment, observe precautions in the litera-
ture, tags and labels attached to the unit, and other safety
precautions that may apply.
INSTALLATION
NOTE: The plugged filter indicator can monitor filter status
(CLEAN/DIRTY). Follow the procedures below and perform
the steps necessary to install the plugged filter indicator.
48/50A Units
1. Open the blower access door on the unit.
2. Open the filter section access door on the unit.
3. Mount the filter switch to the right of the auxiliary
control box (see Fig. 1) using two no. 6 screws.
4. Connect control tubes as shown in Fig. 1. Remove plug
bottoms, insert grommets and route tube through wall as
shown in Fig. 2. See Fig. 3 for dimensions.
5. Make electrical connections:
a. Orange wire marked PF-1 to terminal 1 on switch.
b. Brown wire marked PF-3 to terminal 3 on switch.
ITEM DESCRIPTION QTY PART NUMBER
UNIT
48/50
1 Switch 1 HK06WC029 A,P,Z
— Screw — 8-18x
1
/
2
in. 2 — —
— Screw — 6-20x
3
/
4
in. 2 — A
2 Control Tube 2 50TG501183 A
— Wire Tie 1 — —
3 Tube Fitting 1 KA70PP010 —
4 Hex Nut — #10-32 Brass 1 AT39QA131 —
5 Wire Tie 12 HY76TB045 P,Z
6 Tube Bracket 2 50DW503955 P,Z
7 Grommet 2 KA56GR140 A,P,Z
8 Control Tube 1 50NP500026 P,Z
9 Control Tube 1 50DW503993 P,Z
10 Bushing 1 HY93NH028 P,Z
11 Screw 2 AL48AM307 P,Z
WARNING
Prior to installation of this accessory, make sure all power
is disconnected to the unit and locked out. Failure to dis-
connect power supply prior to servicing may result in seri-
ous injury.
CAUTION
When removing panels from the unit, be careful not to
damage the roof or other surfaces with the panels.
48/50A020-060, 48/50P030-100,
48/50Z030-105
Plugged Filter Indicator Accessory
GROMMET
CONTROL
TUBE
H
L
FILTER INDICATOR SWTICH
LABELED PF-3
LABELED PF-1
GROMMET
CONTROL TUBE: 2" MIN LENGTH
INSERTED PAST FILTER ACCESS BAFFLE
Fig. 1 — Control Tube Routing (48/50A020-060)
Fig. 2 — Control Tube and Grommet
(48/50A020-060)
Comments to this Manuals