Instructions / Assembly

V4043, V4044 VALVES; V8043, V8044 ZONE VALVES
95-6983EF—01 2
Mount the valve directly in the tube or pipe. Make sure
that the flow through the valve is in the direction indicated
by the arrow stamped on the valve body.
On diverting valves, the three fittings or ports are labeled
on the bottom of the valve body casting. See Fig. 2. Port
AB is the inlet port and is open at all times. Port A is
closed when the valve is de-energized; port B is open
when the valve is de-energized. Refer to the equipment
manufacturer’s instructions to determine which port (A or
B) should be connected to the coil bypass.
Fig. 2. Inlet and outlet ports on straight-through and
diverting valves.
FLARE FITTING MODELS
Use new, properly reamed pipe, free from chips. The
valve body is threaded for standard 5/8 in. OD copper, 45
degree SAE flare fitting nuts. These nuts are not furnished
with the valve and must be obtained separately.
SWEAT COPPER MODELS
1. Use new, properly reamed pipe, free from dents or
corrosion.
2. Place the valve onto the pipe. Set the manual open-
ing lever to MAN. OPEN position before applying
heat. This protects the plug inside the valve by
removing it from the seat.
3. Sweat the joints, keeping the outer surface free
from solder. DO NOT use silver solder because of
the high melting temperature required.
Fig. 3. Dimensions.
OUT
STRAIGHT THROUGH
VALVES
IN
B
A
M35994
OUT
OUT
B
A
AB
IN
2 POSITION
DIVERTING
VALVES
4-7/8 (124)
OUT
IN
1
END SWITCH
MAN
OPEN
AUTO
MAN
OPEN
AUTO
CLEARANCE
FOR COVER
REMOVAL
CONDUIT COVER
FOR V8043F
TERMINAL BOARDLEADWIRES
A
B
F
C
A
D
B
C
B
OUT
IN
N
M
R
S
L
K
H
J
G
SWEAT
3/8 FLARE
2
U
P
FNPT
CLEARANCE NECESSARY FOR COVER REMOVAL
FLAIR-TO-SWEAT UNION ADAPTER
1
2
M16851
DIMENSION IN INCHES (MM)
MODELS A B C D E F G H J
V8043C,D,G 2-3/8 (60) 3-3/4 (90) 7/8 (22) 3/4 (19) — 5-1/4 (133) 3-7/16 (87) 5/8 (16) —
V8043F 2-3/8 (60) 3-3/4 (90) 7/8 (22) 3/4 (19) 3-7/8 (98) 5-1/4 (133) 3-7/16 (87) — 3/4 (19)
SWEAT MODELS K L
5/8 IN. I.D. (FOR 1/2 IN. COPPER TUBING) 3-1/8 (79) 1-9/16 (40)
7/8 IN. I.D. (FOR 3/4 IN. COPPER TUBING) 3-1/2 (89) 1-3/4 (44)
1-1/8 IN. I.D. (FOR 1 IN. COPPER TUBING) 3-7/8 (98) 1-15/16 (49)
FLARE MODELS M N
3/8 IN NPT ONLY 4-5/8 (117) 2-5/8 (59)
FNPT MODELS P U
3/4 IN. 3-5/8 (98) 1-13/16 (46)
FLARE-TO-SWEAT UNION ADAPTER R S
FOR 1/2 IN. COPPER 6-3/16 (157) 3-29/32 (99)
FOR 3/4 IN. COPPER 6-7/16 (164) 4-13/16 (106)