Carrier 42C, 42S, 42D, 42V specifications Coil, Valve Package without Motorized Control

When isolation valves only are specified, they will be brazed to the coil stub-outs.

Check job specifications for system pressure, pressure drop limitations and flow rate prior to selecting specific compo- nents or valve package size (1/2 in., 3/4 in., etc.).

2-PIPE SYSTEM ONLY (One Valve Package) Application:

•2 Pipe - Hydronic Heating Only

•2 Pipe - Hydronic Cooling Only

NOTES:

1.Continuous water flow, chilled water or hot water.

2.Not recommended for high humidity applications.

3.Not recommended with unit-mounted thermostat on vertical units (except package R).

4.The addition of any other component(s) will require swage fitting for field braze or optional union connection.

LEGEND

Balancing Valve

Ball Valve

MBall Valve with Memory Stop Circuit Setter

Gate Shut Off Valve

Motorized 2-Way Valve

*When aquastat is used for automatic changeover, bypass is required as indicated by dashed line.

NOTES:

1.Packages factory furnished and installed.

2.Valves are 5/8-in. ODS unless otherwise specified.

3.If an automatic flow control valve is added, it will be located on supply line between shutoff valve and coil (or motorized control valve, if supplied).

WITH HAND VALVES ONLY

BALL VALVE

(2) BALL

R

COIL BALL VALVE

S

BALL VALVE

(1) BALL	R
(1) GATE

COIL	GATE SHUT
	OFF VALVE

S

BALL VALVE

(2) BALL	R
(1) BALANCING

COIL	BALANCING	BALL VALVE
	VALVE

S

CIRCUIT SETTER

(1) BALL

(1) CIRCUIT SETTER R

COIL BALL VALVE

S

		BALL VALVE
(2) BALL	R
(1) 2-WAY MOTORIZED
	MOTORIZED
COIL	2-WAY VALVE	BALL VALVE
	M
	S
	BALL VALVE (WITH
		MEMORY STOP)
(2) BALL (ONE WITH	R	M
MEMORY STOP)
(1) 2-WAY MOTORIZED	MOTORIZED
COIL	2-WAY VALVE	BALL VALVE
	M
	S

Fig. 47 — Valve Package without Motorized Control

48