Carrier 42C Series Installation Instructions

93
APPENDIX D — PIPING AND VALVE CONNECTIONS (CONT)
Fig. M — Symbols and Placement of Valves
Pressure
Test Port
Insertion
Test Port
Union
Swage
Swage
Union
Insertion
Test Port
Pressure
Test Port
Circuit
Setter
Balance
Fixed Flow
(Alternate
Position)
Strainer
Ball Valve
w/ Mem. Stop
AIR VENT
COILS
Control
Valve
AC
BD
R
S
E
F
H
JG
R
S
COIL
CONNECTION
SERVICE
FITTINGS
STRAINER
WATER FLOW
BALANCING
ISOLATION
VALVES
M
Fixed Flow Valve
Drain
Ball Valve
with Memory Stop
M
Strainer
with Blowdown
* Available for Horizontal Ceiling Valve Packages. For application in other units, contact factory. Combination valves will also take the place of the
ball valve because they include an isloation shut off valve.
Coil Connections (Positions A and B) — Swage fitting for field braze is standard. Unions added by the factory for field connection is optional.
Service Fittings (Positions C & D) — Optional fittings for attaching pressure/temperature sensing devices to obtain pressure drop or tem-
perature differential across coil. Used with ball valve or balance valve where extremely accurate water flow balancing is required.
Wa
ter Flow Balancing (Positions E, F, & H) — Only one device per total valve package to be used for balancing water flow through the coil.
Strainer (Position G) — Should not be used in lieu of main piping strainers.
Isolation Valves (Positions H & J) — Normally requires one each on supply and return line except when combination valves are used. When
position H is used for balancing (ball valve or ball valve with memory stop), check specifications for service valve requirements.

Carrier 42C Series Specifications

General

Brand	Carrier
Model	42C Series
Category	Air Conditioner
Language	English