
Fig. 1 — Component Identification (42BHE Units Shown)
A42-3984
AirStream™
42BHE,BVE06-40
System Fan Coil Air Conditioners
Installation, Start-Up and Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1,2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Step 1 — Unpack and Inspect Unit . . . . . . . . . . . . . . . 2
Step 2 — Protect Unit from Damage . . . . . . . . . . . . . . 2
Step 3 — Prepare Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 4 — Prepare Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 5 — Position Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 6 — Make Piping Connections . . . . . . . . . . . . . 11
Step 7 — Make Electrical Connections . . . . . . . . . . 13
Step 8 — Make Duct Connections . . . . . . . . . . . . . . . 14
Step 9 — Install Mixing Box . . . . . . . . . . . . . . . . . . . . . 14
Step 10 — Make Final Preparations . . . . . . . . . . . . . 15
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Air System Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Clean Coils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Check Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fan and Motor Bearings. . . . . . . . . . . . . . . . . . . . . . . . . 16
Align Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Adjust Fan Belt Tension . . . . . . . . . . . . . . . . . . . . . . . . . 16
Clean Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Clean or Replace Air Filters . . . . . . . . . . . . . . . . . . . . . 16
Recommended Maintenance . . . . . . . . . . . . . . . . . . 16
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Excessive Condensation on Fan Coil Unit
Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Motor Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
START-UP CHECKLIST . . . . . . . . . . . . . . . . . CL-1,CL-2
SAFETY CONSIDERATIONS
Air-handling equipment is designed to provide safe and
reliable service when operated within design specifications. To
avoid injury to personnel and damage to property or equipment, use good judgment and follow safe practices as outlined
below when installing and operating this equipment.
DANGER
NEVER REACH INTO a unit while the fan is running.
LOCK OPEN AND TAG the fan motor power disconnect
switch before working on unit. In addition, remove the
fuses and take them with you after noting this on tag.
DISCONNECT ALL POWER before attempting any
installation or service. More than one power source may be
supplied to a unit. Power to remote mounted control
devices may not be supplied through the unit.
CHECK THE WEIGHT of assembly and components to
be sure that rigging equipment can handle them safely.
NEVER PRESSURIZE a coil with a non-liquid for leak
testing. A dangerous burst may occur.
DO NOT STEAM CLEAN coils until you are sure all personnel are clear of the area.
Failure to follow these warnings will result in severe personal injury or death.
INTRODUCTION
The following contains general installation instructions for
the 42BHE,BVE fan coil units. See Fig. 1 for components. Refer to the unit wiring diagram installed on the blower housing
or specific manufacturer literature for any other type of factorymounted controls.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53420009-01 Printed in U.S.A. Form 42B-4SI Pg 1 11-13 Replaces: 42B-3SI

See drawings for unit configurations, dimensions, clearanc-
WIDTH
E
2
K
J
TOP VIEW
SEE DETAIL 1
DEPTH
FILTER RACK WITH
TOOLLESS ACCESS
FROM SIDES AND
BOTTOM
HANGER ROD
KNOCKOUT Ø5/8
TYP 4 PLCS
1/2
1/2
DETAIL 1
SCALE 0.250
1-3/8
1" SUPPLY
AIR COLLAR
SUPPLY AIR
COIL DRAIN CONN.
[MALE 3/4-14 NPT]
[FEMALE 1/2-14 NPT
SECONDARY]
4 X 4 JBOX AND
MOTOR MOUNTED
SAME SIDE AS COIL
CONNECTIONS
SIDE VIEW
1
F RETURN AIR
1" RETURN
AIR COLLAR
COIL SUPPLY CONN.
COIL RETURN CONN.
4-3/8
ADD 2" FOR MERV11 FILTER
BOTH SIDE PANELS WITH
TOOLLESS CAMLOCK ACCESS
FRONT VIEW 2-1/16
D
A
C
B
HEIGHT
NOTES:
1. All dimensions are in inches (±1/4 in.).
2. Any modifications to product specifications by any person are subject to acceptance of the factory. Product specifications are subject to
change without notice.
3. Right hand shown, left hand opposite.
4. Hanger rods, which are field-supplied, are shown for reference only.
5. Control box size and position may vary.
6. “C” dimension is measured from coil side of the unit.
UNIT
42BHE
DIMENSIONS (in.)
Fan Size Depth Width Height
Supply Duct Return Duct Mounting Holes
AB CDEF J K
06 9 x 4 36 28 19
3
/
4
71/
8
101/
2
141/
2
21/424 161/
2
271/
4
351/
4
08 9 x 6 36 28 193/
4
81/
2
101/
2
137/
8
21/424 161/
2
271/
4
351/
4
10 10 x 4 371/
2
37 211/
2
71/
8
115/
8
151/
4
21/433 181/
4
361/
4
37
12 10 x 7 37
1
/
2
37 211/
2
10 115/
8
137/
8
21/433 181/
4
361/
4
37
16 11 x 10 37
3
/
4
47 211/
2
133/
8
123/
4
163/
4
21/443 181/
4
461/
4
37
20 12 x 9 40
1
/
4
48 24 121/
2
133/
4
173/
4
21/444 203/
4
471/
4
391/
2
30 12 x 12 401/
4
48 321/
4
157/
8
133/
4
16 71/444 29 471/
4
391/
2
40 15 x 12 431/
2
62 321/
4
161/
2
161/
8
223/
4
61/458 29 613/
4
421/
2
Fig. 2 — Unit Dimensions — 42BHE Fan Coil Base Unit (No Controls)
es, and pipe connections. Refer to unit wiring label for all electrical connections. Follow NEC (National Electrical Code) and
local codes.
INSTALLATION
Step 1 — Unpack and Inspect Unit —
ping wraps from unit and check shipment against shipping list.
Check for concealed shipping damage. If shipment is damaged
or incomplete, file claim with transportation company and
contact your local Carrier representative immediately.
Remove ship-
Step 2 — Protect Unit from Damage — To main-
tain warranty, protect unit against adverse weather conditions,
theft or vandalism on the jobsite.
The described equipment IS NOT suitable for outdoor installations. The equipment should never be stored or installed
where it may be subjected to a hostile environment such as
rain, snow, or extreme temperatures.
Step 3 — Prepare Jobsite — To save time and to re-
duce the possibility of costly errors, set up a complete sample
installation in a typical room at jobsite. Check all critical dimensions such as pipe, wire and duct connection requirements.
Refer to job drawings and product dimension drawings as required. Instruct all trades in the appropriate part of the installation. For unit component identification, refer to Fig. 1. For unit
dimensions, refer to Fig. 2-4 for 42BHE units. Refer to Fig. 5-7
for 42BVE units.
2

WIDTH
NOTES:
1. All dimensions are in inches (±1/4 in.).
2. Any modifications to product specifications by any person are subject to acceptance of the factory. Product specifications are subject to
change without notice.
3. Right hand shown, left hand opposite.
4. Hanger rods, which are field-supplied, are shown for reference only.
5. Control box size and position may vary.
6. “C” dimension is measured from coil side of the unit.
UNIT
42BHE
DIMENSIONS (in.)
Fan Size Depth Width Height
Supply Duct Return Duct Mounting Holes
AB CDEF J K
06 9 x 4 36 28 19
3
/
4
71/
8
101/
2
141/
2
21/
4
24 161/
2
271/
4
351/
4
08 9 x 6 36 28 193/
4
81/
2
101/
2
137/
8
21/
4
24 161/
2
271/
4
351/
4
10 10 x 4 371/
2
37 211/
2
71/
8
115/
8
151/
4
21/
4
33 181/
4
361/
4
37
12 10 x 7 37
1
/
2
37 211/
2
10 115/
8
137/
8
21/
4
33 181/
4
361/
4
37
16 11 x 10 37
3
/
4
47 211/
2
133/
8
123/
4
163/
4
21/
4
43 181/
4
461/
4
37
20 12 x 9 40
1
/
4
48 24 121/
2
133/
4
173/
4
21/
4
44 203/
4
471/
4
391/
2
30 12 x 12 401/
4
48 321/
4
157/
8
133/
4
16 71/
4
44 29 471/
4
391/
2
40 15 x 12 431/
2
62 321/
4
163/
8
161/
8
223/
4
61/
4
58 29 613/
4
421/
2
a42-4241
Fig. 3 — Unit Dimensions — 42BHE Fan Coil Base Unit with Motor Control Option
E
2
FILTER RACK WITH
TOOLLESS ACCESS
FROM SIDES
AND BOTTOM
K
18
DOOR
OPEN
J
TOP VIEW
A
D
B
FRONT VIEW
DEPTH
8-11/16
SEE DETAIL 1
MOTOR CONTROLS AND MOTOR
MOUNTED SAME SIDE AS
COIL CONNECTIONS
C
HANGER ROD
KNOCKOUT Ø5/8
TYP 4 PLCS
1-3/8
1" SUPPLY
AIR COLLAR
HEIGHT
SUPPLY AIR
COIL DRAIN CONN.
[FEMALE 1/2-14 NPT SECONDARY]
[1MALE 3/4-14 NPT]
DETAIL 1
SCALE 0.250
1/2
1/2
SIDE VIEW
BOTH SIDE PANELS WITH
TOOLLESS CAMLOCK ACCESS
4-3/8
ADD 2" FOR MERV11 FILTER
COIL RETURN CONN.
F
COIL SUPPLY CONN.
1
RETURN AIR
1" RETURN
AIR COLLAR
3

WIDTH
E
K
9-11/16
1" SUPPLY
AIR COLLAR
J
TOP VIEW
2
FILTER RACK WITH TOOLLESS ACCESS
FROM SIDES AND BOTTOM
DEPTH
SEE DETAIL 1
20
DOOR OPEN
ELECTRIC HEAT AND MOTOR
MOUNTED SAME SIDE AS
COIL CONNECTIONS
1-3/8
HEIGHT
SUPPLY AIR
FRONT VIEW
A
C
13-3/4
HANGER ROD
KNOCKOUT Ø5/8
TYP 4 PLCS
1/2
1/2
DETAIL 1
SCALE 0.250
BOTH SIDE PANELS WITH
TOOLLESS CAMLOCK ACCESS
4-3/8
ADD 2" FOR MERV11 FILTER
COIL RETURN CONN.
COIL SUPPLY CONN.
SIDE VIEW
COIL DRAIN CONN.
[MALE 3/4-14 NPT]
[FEMALE 1/2-14 NPT SECONDARY]
1
1" RETURN
AIR COLLAR
RETURN AIR
D
B
NOTES:
1. All dimensions are in inches (±1/4 in.).
2. Any modifications to product specifications by any person are subject to acceptance of the factory. Product specifications are subject to
change without notice.
3. Right hand shown, left hand opposite.
4. Hanger rods, which are field-supplied, are shown for reference only.
5. “C” dimension is measured from coil side of the unit.
UNIT
42BHE
DIMENSIONS (in.)
Fan Size Depth Width Height
Supply Duct Return Duct Mounting Holes
AB CDEF J K
06 9 x 4 36 28 19
3
/
4
87/
8
101/
2
141/
2
21/424 161/
2
271/
4
351/
4
08 9 x 6 36 28 193/
4
87/
8
101/
2
137/
8
21/424 161/
2
271/
4
351/
4
10 10 x 4 371/
2
37 211/
2
103/8115/
8
151/
4
21/433 181/
4
361/
4
37
12 10 x 7 37
1
/
2
37 211/
2
103/
8
115/
8
137/
8
21/433 181/
4
361/
4
37
16 11 x 10 37
3
/
4
47 211/
2
137/
8
123/
4
163/
4
21/433 181/
4
461/
4
37
20 12 x 9 40
1
/
4
48 24 13 133/
4
173/
4
21/444 203/
4
471/
4
391/
2
30 12 x 12 401/
4
48 321/
4
161/
4
133/
4
16 71/444 29 471/
4
391/
2
40 15 x 12 431/
2
62 321/
4
163/
4
161/
8
223/
4
61/458 29 613/
4
421/
2
Fig. 4 — Unit Dimensions — 42BHE Fan Coil Base Unit with Electric Heat Option
A42-661EF
4

C
A
7-7/16
TOP VIEW
2-1/16
B
4 X 4 JBOX AND MOTOR
MOUNTED SAME SIDE AS
COIL CONNECTIONS
DEPTH
1-7/16
1" SUPPLY AIR
COLLAR
SUPPLY AIR
BOTH SIDES
AND FRONT
PANEL WITH
CAMLOCK
ACCESS
4-3/8
ADD 2" FOR
MERV11 FILTER
HEIGHT
RETURN AIR
COIL RETURN CONN.
COIL SUPPLY CONN.
COIL DRAIN CONN.
[MALE 3/4-14 NPT]
[MALE 1/2-14 NPT SECONDARY]
SIDE VIEW
FILTER RACK WITH
TOOLLESS ACCESS
FROM SIDES AND TOP
1" RETURN AIR COLLAR
2
E
WIDTH
FRONT VIEW
F
1"
NOTES:
1. All dimensions are in inches (±
1
/4 in.).
2. Any modifications to product specifications by any person are subject to acceptance of the factory. Product specifications are subject to
change without notice.
3. Left hand shown, right hand opposite.
4. Drain pan removal is on the piping side of the unit.
5. “C” dimension is measured from coil side of the unit.
UNIT
42BVE
DIMENSIONS (in.)
Fan Size Depth Width Height
Supply Duct Return Duct
AB CEF
06 9 x 4 20 28 36
1
/
2
71/
8
101/
2
163/
4
24 161/
2
08 9 x 6 20 28 361/
2
81/
2
101/
2
151/
4
24 161/
2
10 10 x 4 22 37 393/
8
71/
8
115/
8
241/
2
33 181/
4
12 10 x 7 22 37 393/
8
10 115/
8
211/
2
33 181/
4
16 11 x 10 22 47 393/
8
133/
8
123/
4
163/
4
43 181/
4
20 12 x 9 24 48 451/
8
121/
2
133/
4
173/
4
44 203/
4
30 12 x 12 28 48 541/
4
157/
8
133/
4
16 44 29
40 15 x 12 28 62 57
5
/
8
161/
2
161/
8
223/
4
58 29
A42-4242
Fig. 5 — Unit Dimensions — 42BHV Fan Coil Base Unit (No Controls)
5

A
C
B
1"
TOP VIEW
8-3/4"
17-15/16"
DOOR OPEN
HEIGHT
2"
F
1"
E
WIDTH
FRONT VIEW
MOTOR CONTROLS
AND MOTOR MOUNTED
SAME SIDE AS
COIL CONNECTIONS
SUPPLY AIR
DEPTH
1" SUPPLY AIR COLLAR
BOTH SIDES AND FRONT
PANEL WITH CAMLOCK ACCESS
4-3/8
ADD 2" FOR MERV11 FILTER
COIL RETURN CONN.
COIL SUPPLY CONN.
RETURN AIR
1" RETURN AIR COLLAR
COIL DRAIN CONN.
[MALE 3/4-14 NPT]
[MALE 1/2-14 NPT SECONDARY]
SIDE VIEW
FILTER RACK WITH
TOOLLESS ACCESS
FROM SIDES AND TOP
NOTES:
1. All dimensions are in inches (±
1
/4 in.).
2. Any modifications to product specifications by any person are subject to acceptance of the factory. Product specifications are subject to
change without notice.
3. Left hand shown, right hand opposite.
4. Drain pan removal is on the piping side of the unit.
5. “C” dimension is measured from coil side of the unit.
UNIT
42BVE
DIMENSIONS (in.)
Fan Size Depth Width Height
Supply Duct Return Duct
AB CEF
06 9 x 4 20 28 36
1
/
2
71/
8
101/
2
163/
4
24 161/
2
08 9 x 6 20 28 361/
2
81/
2
101/
2
151/
4
24 161/
2
10 10 x 4 22 37 393/
8
71/
2
115/
8
241/
2
33 181/
3
12 10 x 7 22 37 393/
8
10 115/
8
211/
2
33 181/
3
16 11 x 10 22 47 393/
8
133/
8
123/
4
163/
4
43 181/
3
20 12 x 9 24 48 451/
8
121/
2
133/
4
173/
4
44 203/
4
30 12 x 12 28 48 543/
16
157/
8
133/
4
16 44 29
40 15 x 12 28 62 57
5
/
8
167/
16
161/
8
223/
4
58 29
a42-4243
Fig. 6 — Unit Dimensions — 42BHV Fan Coil Base Unit with Motor Control Option
6