Just Better M2 User Manual
Directions For Use
C
A
B
D
E
CONDENSER
COMPRESSOR
RECEIVER
EVAPORATOR
Caution: Always consult
MANIFOLD COMPRESSOR
equipment manufacturer's
A B C D E
service manual or instruc-
Charging and Discharge Suction
tion sheet for recommended
Low Side High Side Evacuation Port Service Valve Service Valve
procedures.
Blue Red Yellow Red Blue
To Observe Closed Closed Back Seated Back Seated &
Operating Pressures & Cracked Open Cracked Open
To Charge Refrigerant Open Closed Connect Line Back Seated Front Seated
Through Suction Valve to Refrigerant Supply & Cracked Open
To Charge Oil Open Closed Connect Line Back Seated Front Seated
Through Suction Valve To Oil Supply
To Charge Liquid Refrigerant Closed Open Connect Line Midway Open
Through Discharge Valve To Refrigerant
To Build Low Pressure; Open Open Refrigerant Back Seated Midway Open
For Control Setting Line Closed & Cracked Open
Or Leak Detecting
To Purge Refrigerant Closed Open Refrigerant Back Seated
From Discharge Valve Line Open & Cracked Open
To Evacuate With Open Open Connect To Midway Open Midway Open
Auxiliary Vacuum Pump Vacuum Pump
LIMITED WARRANTY
Manifold bar has a lifetime warranty, while the components, i.e.
gauges, hoses, handles, hose holders, etc. are covered under
the limited warranty policy. Products are warranted for a period
of one year from date of shipment by JB and limited to repair,
replacement or credit, if in our opinion are defective due to
workmanship and/or materials. Defective components should be
returned to the wholesaler from which the product was purchased for evaluation.
Manifolds are designed for use with all refrigerants except
ammonia (R-717). Working pressures are limited to gauge dial
range. Use of this manifold under any other conditions voids the
warranty.
FOR PROFESSIONAL USE ONLY
JB manifolds are designed for use by technically trained
AC/R service engineers only. Due to the high pressures encountered in all systems that this manifold will be used on, plus the
dangers due to the physical and chemical nature of refrigerants
and oils present in all systems, misapplication could result in
injury or death.
FORM NO. 28012-308
PRINTED IN U.S.A.
1
2
4
6
7
8
9
3
5
Each gauge is individually tested and calibrated prior
to shipment. Due to its sensitivity, the gauge may
need to be "zeroed in" prior to usage.
Adjusting Gauge Recal to Zero
1. Remove lens.
2. Turn recal screw slightly in the opposite direc-
tion that pointer is to be moved. Maximum recal
screw adjustment is 1/2 turn. Over adjustment will
permanently destroy calibration.
3. Replace lens.
Turn recal screw counterclockwise. Pointer
turns clockwise.
Over adjustment and/or being subjected to pressures
over dial range are not covered under warranty terms.
Gauges are sensitive instruments.
Turn recal screw
clockwise. Pointer turns
counter-clockwise.
REPAIR PARTS
See your wholesaler
for a complete line of
gauges
NO.
REF. PART NO. DESCRIPTION
1 MR-503 Handwheel Screws (2)
2 MR-501B Blue Handwheel
& Screw
3 MR-516 Stem& Nut
4 MR-509 O-Ring (P90011) (2)
5 MR-505 Piston w/Seat &
O-Rings
NO.
REF. PART NO. DESCRIPTION
6 MR-501R Red Handwheel
& Screw
7 M2-300 Hose Holder
8 M2-102N Hanging Hook
9 U1-4A 1/4" Intake
DEEP VACUUM PUMPS
Featuring
Heavy Duty,
High Performance
1/2 HP, 60 Cyc Motor
DV-42N 1.5 CFM
DV-85N 3 CFM
DV-142N 5 CFM
DV-200N 7 CFM
DV-285N 10 CFM
Also Available With
Dual Voltage Motors
Technical service: 800-323-0811
E-Mail: sales@jbind.com
Web Site: www.jbind.com
TM
©2006 JB Industries Inc.
CHARGING AND TESTING
M2 Series 2-Valve
Brass Manifold
With Free
Floating,
Double O-Ring,
Piston Seal,
LIMITED WARRANTY
INSTRUCTIONS PARTS LIST
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