Unitary products group C*ED060A Series, C*ED090A Series, C*ED120A Series, C*ED180A Series Installation Instruction

INSTALLATION

SINGLE PACKAGE

INSTRUCTION

TABLE OF CONTENTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CAUTIONS, NOTES AND WARNINGS . . . . . . . . . . 3

INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

A Complete Table of Contents on Following Page

WATER COOLED

AIR CONDITIONERS

EMBASSSY SERIES

MODELS C*ED060A, 090A, 120A, & 180A

SAVE THIS MANUAL

035-16734-000 REV A (799) Form 560.20-N1Y

560.20-N1Y 035-16734-000

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TABLE OF CONTENTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CAUTIONS, NOTES AND WARNINGS . . . . . . . . . . 3

INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

FOUNDATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

CLEARANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

RIGGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

UNCRATNG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

SHIPPING BOLTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

BLOWER ARRANGEMENTS . . . . . . . . . . . . . . . . . . . . . 15

SUPPLY AIR BLOWER ADJUSTMENT . . . . . . . . . . . . .15

DUCT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 18

SUPPLY AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

RETURN AIR DUCT FLANGE . . . . . . . . . . . . . . . . . . . . 19

INSULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

CONDENSER WATER PIPING . . . . . . . . . . . . . . . . . . .19

PRECAUTIONS AGAINST FREEZING . . . . . . . . . . . . . . . . . .19

DRAIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

REFRIGERATION SYSTEM . . . . . . . . . . . . . . . . . . . . . .20

WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

POWER WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

LOW VOLTAGE WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

ACCESSORY WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

WATER REGULATING VALVES . . . . . . . . . . . . . . . . . .21

COOLING TOWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

16 CTRL (LOW VOLT) FIELD WIRING DIA. . . . . . 22

17 COOLING TOWER WATER PIPING . . . . . . . . . 24

18 UNIT CONTROL ON WATER FLOW . . . . . . . . 24

19 ALT UNIT CONTROL ON WATER FLOW . . . . 24

LIST OF TABLES

1 APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . 4

2 OPERATING AND SHIPPING WEIGHT . . . . . . . 5

3 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . 6

4 COOLING CAPACITY 80°F TO 90°F . . . . . . . . . 7

5 COOLING CAPACITY 100°F TO 110°F . . . . . . . 8

6 CORRECTION FACTORS ALL MODELS . . . . . 9

7 CONDENSER WATER PRESSURE DROP . . . . 9

8 SUPPLY AIR BLOWER PERFORMANCE . . . . 10

9 MINIMUM CLEARANCES CED060 . . . . . . . . . . 14

10 MINIMUM CLEARANCES CED090 & 120 . . . . 14

11 MINIMUM CLEARANCES CED180 . . . . . . . . . . 14

12 SPLY AIR BLWR MOTOR PULLEY ADJ . . . . . 16

13 TUBE HOLE LOCATIONS . . . . . . . . . . . . . . . . 17

14 CFM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . 17

15 BLOWER MOTOR DRIVE DATA . . . . . . . . . . . 18

16 WATER CONNECTION SIZING . . . . . . . . . . . . 19

17 ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . 23

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

ADJUSTING WATER REGULATING VALVE . . . . . . . . .24

LIST OF FIGURES

1 PRODUCT NOMENCLATURE . . . . . . . . . . . . . . 3

2 UNIT DIMENSIONS - CED060 . . . . . . . . . . . . . 11

3 UNIT DIMENSIONS - CED090 & 120 . . . . . . . . 12

4 UNIT DIMENSIONS - CED180 . . . . . . . . . . . . . 13

5 BLOWER ARRANGE CED060, 090 & 120 . . . . 15

6 BLOWER ARRANGE CED180 #1 . . . . . . . . . . . 15

7 BLOWER ARRANGE CED180 #2, #3, & #4 . . . 15
8 TYPICAL MOTOR MOUNTING ASSEMBLY . . 16

9 PROBE LOCATIONS . . . . . . . . . . . . . . . . . . . . 17

10 CFM CURVE . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

11 SUPPLY AIR DUCT CONNECTION . . . . . . . . . 18

12 COILS AND WATER CONNECTIONS . . . . . . . 19

13 RECOMMENDED DRAIN PIPING . . . . . . . . . . . 20

14 ELECTRICAL CONTROL BOX . . . . . . . . . . . . . 21

15 PS FIELD WIRING DIAGRAM . . . . . . . . . . . . . . 22

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PRODUCT CATEG ORY

C = Single P ackage A ir
C o n d ito n in g U n it
(W a te r C o o le d )

PRODUCT GENERATION

2 = 2nd G eneration

PRODUCT IDENTIFIER

E D = E m bassy Factory
A s s e m b le d U n it w ith
B lo w e r M o to r and D rive

NOM INAL COOLING CAPACITY

FIGURE 1 : PRODUCT NOMENCLATURE

GENERAL

These C2ED Embassy units are water-cooled, single pack-

e air conditioners designed for vertical application and

a
indoor installation onl
conditioned space or in a utilit

. The unit may be installed within the

room.

DE

Installer should pay particular attention to the words: NOTE,
CAUTION and WARNING. Notes

make the installation easier. Cautions
equipment dama
that personal injur
the installation proced ure is not handl ed prop erl

9 0 A

0

060 = 5 Tons
090 = 7-1/2 Tons
120 = 10 Tons
180 = 15 Tons

2 5

INSTALLED HEAT

A = N o t A p p lic a b le

e. Warnings are given to alert the installer

and/or equipment damage may result if

VOLTAG E C O DE

06-208/230-1-60
25-208/230-3-60
46-460-3-60

FAC TO RY

are intended to clarify or

are given to prev ent

.

Models ED060, ED090 and 120 are desi
flow onl
The ED180 is factor
blower section ma
Units ma
return, with suppl
or a combination of these items.

Units are complet el
wired, tested and read
mounted in the blower se cti on. Units less motor and drive or
with alternate motors and drives are not available.

The units require electrical power, duct connections or ple­num, condenser wa ter p ipi n
tial support at the point of installation.

Wate r pi pi n
made from either side of unit. Low volta
side onl

Drain connections a r e ma de on the ri
except the ED180, which can be made form either side.

and can not be field converted to horizontal airflow.

assembled f or vertical air flow, but the

be field converted for horizontal airflow.

be installed either with ductwork on supply and

air plenum and return air grille accessor

factory assembled, refr igerant ch arged,

for installation. Motor and drive are

, condensate drai n a nd s ub sta n-

connections an d power wiring entrance can be

.

ned for vertical air-

e entrance on right

ht side only for all units

CAUTIONS, NOTES AND WARNINGS

INSPECTION

Immediately upon receiv ing the unit, it should be inspected
for possible da ma
should be noted on the carrier’s frei
request for inspection b
in writin

.

e during transit. If damage is evident, it

ht bill. A separate

the carrier’s agent should be ma de

LIMITATIONS

1. Units are not suitable for brackish or salt water.

2. Refer to Table 1 for recomm en ded c ond ens er w ater flo w
rate and water temperature rise for coolin
cation.

3. Excessively high GPM and low water temperature may
result in coil freeze up.

4. A water-re
applications; it should be adjusted to maintain a head
pressure of 220 psi
approximatel

5. Excessivel
result in H.P. Cutout trip, 325 PSI.

6. Units are not intended for outdoor installation.

ulating valve is recommended for city water

and a water temperature rise of

20°F.

low GPM and high water temperature may

tower appli-

Products Group 3

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560.20-N1Y 035-16734-000

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7. These units should be installed in accordance with:
a. Re

b. Standards for air conditionin

ulations of National Board of Fire Underwriters,

local utilit

or other authorities having jurisdiction.

stems, National Fire

Association Pamphlet # 90.

TABLE 1: APPLICATION DATA

LIMITATION

208/230-1-60 187 252

P

OWER SUPPLY

S

UPPLY AIR

A

IR TEMPERATURE ENTERING

C

OOLING COIL

C

ONDENSER WATER

C

ONDENSER WATER-SIDE WORKING PRESSURE

, V

, CFM

°F

OLTS

, GPM

208/230-3-60 187 252

460-3-60 432 504
C2ED060 1600 2400
C2ED090 2400 3600
C2ED120 3200 4800
C2ED180 4800 7200

Wet Bulb 57 72

Dry Bulb 65 95
C2ED060 4 20
C2ED090 6 30
C2ED120 8 40
C2ED180 12 60

, PSIG

c. National Warm Air Heatin

and Air Conditionin

Association Manuals, which ever is applicable.

d. Wirin

must conform to provisions of National Elec­trical Code (NFPE Pamphlet # 70) and local ordi­nances.

MINIMUM

2

20

1

MAXIMUM

150

1

3

L

EAVING CONDENSER WATER TEMPERATURE

1.

Utilization Range “A” in accordance with ARI Standard 110.

2.

The water pressure must be great enough to overcome the pressure drop of the condenser and the condenser water piping.

3.

Although the water side is only leak tested for 150psig, the maximum water-side working pressure of the condenser is 450 psig.
Class 150 fittings in the unit’s condenser water piping are good for 300 psig. For 300 psig applications, a sealing material (Lock­tite or equivalent) must be applied to all threaded connections to assure a leak-tight installation. The water regulating valve acces­sories are limited to a maximum 150 psig.

4.

The limitation for entering condenser water temperature will vary with condenser water GPM.

INSTALLATION

4

, °F

ACCESSORIES

60 115

Refer to the following instructions for installation of accesso­ries:

• Form 550.13-N10.1U Electric Heat

THIS PRODUCT MUST BE INSTALLED IN
STRICT COMPLIANCE WITH THE ENCLOSED
INSTALLATION INSTRUCTIONS AND ANY
APPLICABLE LOCAL, STATE, AND NATIONAL
CODES INCLUDING BUT NOT LIMITED TO,

• Form 550.13-N10.2U Suppl

• Form 550.13-N10.3U Return Air Grille

• Form 550.12-N10.7U Hot Water Coil and Non-Freeze
Steam Coil

• Form 560.20-N1.5 W ate r Re

Air Plenum

ulating Valve

BUILDING, ELECTRICAL AND MECHANICAL
CODES.

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LOCATION

1. Units may be located in the conditioned space or in an
adjacent room. Units ma
must be protected from freezin

2. Units should be installed in an area offerin
power and control wir in
densate trap and pi pin

if required, outdoor air duct if required, and supply

in

not be located outdoors, and

.

proper

, condenser water piping, con-

, overflow if required, heating pip-

and return air.

FOR WINTER SHUTDOWN, RESIDUAL WATER
MUST BE BLOWN FROM THE CONDENSER IF
THE UNIT IS LOCATED IN AN AREA WHERE
THE AMBIENT TEMPERATURE MAY DROP
BELOW 32°F OR IF THE UNIT HAS AN OUT­DOOR AIR INTAKE.

3. Supply air may be ducted or distributed with a plenum.
Return air ma
an inlet

be ducted, unducted or returned through

rille. If the unit is to have an outdoor air intake,

it should be located near and outside wall.

Units should be located for ease of service, with adequate
clearance for compressor access, front and ri
drive access, chan

filters, and heating coil service if

required. Refer to respective unit dimension detail (Fi

ht side, fan

ure 2,

3, and 4) for required clearances.

FOUNDATION

1. Units may be placed on the floor or b e elev ated o n a su it­able platform.

2. No special foundation or isolation is required for most
applications.

a. Unit incorporates adequate isolation to eliminate

fan, compressor, and condensin
Flexible duct is also recommended.

b. It is not necessar

in

structure.

to bolt unit to the floor or support-

c. Floor or platform must be capable of supportin

operatin
wei

3. For installations requirin
followin

weight of the unit. See Table 2 for unit

hts.

extreme quiet operation, the

precautions should be considered:
a. Locate unit outside the conditioned space.
b. Suppl

and return air ducts should be used, con­nected to the unit with asbestos cloth collars, and
lined with sound absorbing material.

section vibration.

the

c. Support the unit on a separate floor structure form

that of the conditioned space.

d. Place a non-deteriorating sound isolation pad under

the entire unit base.

CLEARANCE

Clearance must be provided for:

1. Air intake and discharge – with or without ductwork.

2. Condenser water pipin

and connections.

3. Electrical power conne cti on s.

4. Heatin

coil piping and connections, if required.

5. Trapped condensate drain connection.

6. Maintenance and service access. Recommended mini­mum clearances for units are shown on the unit dimen­sion drawin
are based on standard arran
standard arran

’s Figures 2, 3, and 4. These clearances

ements of units. For non-

ements, allow clearan ce s th at are in line

with the recommended minimum values shown.

RIGGING

1. Lift with slings under the unit.

2. Use spreader bars across the top of the unit to prevent
crushin

3. Avoid possible surface dama

the unit frame and panels.

e by NOT removing the
carton or the skids un til the unit is at or near its final loca­tion and soon to be installed.

TABLE 2: OPERATING AND SHIPPING WEIGHT

(LBS.)

MODEL C2ED 060 090 120 180

S

HIPPING WEIGHT

O

PERATING WEIGHT

452 755 809 1115

402 690 744 1040

UNCRATNG

Keep the units in their carton until moved close to point of
installation. Units are mounted on skids and should be
“trucked” to location in a vertical position. Under no circum­stances should the

1. Remove the shippin

2. Remove skid from under the unit.

3. Remove front access panel from condenser section.
This is necessar
denser water pipin

blocks.

pin

be “walked” on the corners of the crate.

carton.

for access to the electrical box, con-

and the removal of compre ssor s hip-

Products Group 5

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TABLE 3: PHYSICAL DATA

DESCRIPTION

Quantity Per Unit

C

OMPRESSOR

(F

ULLY HERMETIC

3-3/4 ton - 2 - ­5-Ton 1 - 2 1

10-Ton - - ­Rows Deep x Rows Wide 3 x 24 3 x 24 3 x 32 4 x 26
Finned Length - inches 30 46 46 54.5

E

VAPORATOR COIL

Face Area - square feet 5.0 7.7 10.2 12.4
Tube (Copper) OD - inches 3/8 3/8 3/8 1/2
Fins (Aluminum) per inch 13 13 13 12

C

ENTRIFUGAL BLOWER

(F

ORWARD CURVE

2

M

OTORS

F

ILTERS

(T

HROWAWAY

)

)

Diameter x Width - inches 10 x 10 15 x 15 15 x 15 18 x 18

Nominal HP Rating

Quantity per Unit

Face Area - square feet 5.6 11.1 11.1 16.7
Quantity Per Unit

C

ONDENSER

(W

ATER COOLED

)

3-3/4 Ton - 2 - ­5 Ton 1 - 2 3
Refrigerant-22, lbs. - oz.

O

PERATING CHARGE

System - 1 5-1 4-9 5-14
System - 2 - 4-9 5-14 5-4

1.

The 10-Ton system is wired for first stage operation.

2.

The refer to Table 15 for additional blower motor and drive data.

UNIT MODEL

CED060 CED090 CED120 CED180

3/4

(1@460-3-60)

1-1/2 2 3

16” x 25” x 1” 2 4 4 ­20” x 20” x 1” - - - 6

12-0

1

1

2

6 Unitar

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TABLE 4: COOLING CAPACITY 80°F TO 90°F

AIR ENTERING

MODEL

CED

060

(1 Phase)

060

(3 Phase)

090

120

180

1.

These capacities are gross ratings. For net capacities, determine the Kw requirements of the supply air blower motor per T able 8.
Convert kW to MBH per the following equation and deduct this equivalent heat from the gross cooling ratings.
BLOWER MOTOR kW x (3.415 MBH / kW) = Blower Motor Heat (MBH)

2.

Compressor kW only. For total unit kW, add the kW requirement of the supply air blower per Table 8.

COOLING COIL TOTAL

TEMP. °F

CFM

86 72

2000

2000

3000

3000

6000

80 67 63 43 4.3 10.4 59 42 4.6 10.0
56 41 57 41 4.2 9.6 54 40 4.5 9.3
68 57 52 40 4.1 8.8 49 39 4.4 8.6
86 72
80 67 63 43 4.1 10.3 59 42 4.4 9.9
74 62 57 41 4.0 9.5 54 40 4.3 9.2
68 57 52 40 3.9 8.7 49 39 4.2 8.5
86 72
80 67 94 65 6.0 10.2 89 63 6.4 9.9
74 62 86 62 5.8 9.4 81 61 6.2 9.1
68 57 77 60 5.7 8.6 73 59 6.1 8.4
86 72
80 67 128 90 8.2 10.5 121 87 8.8 10. 1
74 62 118 87 8.0 9.7 110 84 8.6 9.4
68 57 107 84 7.8 8.9 100 81 8.4 8.6
86 72
80 67 195 139 13.1 10.6 187 135 13.7 10.4
74 62 175 133 12.8 8.7 168 130 13.5 9.5
68 57 154 127 12.6 8.8 149 125 13.3 8.6

COND.

WATER

GPM

15

15

22.5

30

45

1

CONDENSER WATER TEMPERATURE, °F

80 90

TOT.
MBH

69 45 4.4 11.2 65 44 4.7 10.8

69 45 4.2 11.1 65 44 4.5 10.7

102 68 6.2 11.0 97 66 6.6 10.6

139 93 8.4 11.2 132 90 9.0 10.8

211 146 13.4 11.4 203 140 14.0 11.2

SENS.

MBH

Kw

2

WATER
RANGE

°F

TOT.

MBH

SENS.

MBH

Kw

2

WATER
RANGE

°FDB WB

Nominal Ratin

Products Group 7

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TABLE 5: COOLING CAPACITY 100°F TO 110°F

AIR ENTERING

MODEL

CED

060

(1 Phase)

060

(3 Phase)

090

120

180

1.

These capacities are gross ratings. For net capacities, determine the Kw requirements of the supply air blower motor per Table 8.
Convert kW to MBH per the following equation and deduct this equivalent heat from the gross cooling ratings.
BLOWER MOTOR kW x (3.415 MBH / kW) = Blower Motor Heat (MBH)

2.

Compressor kW only. For total unit kW, add the kW requirement of the supply air blower per Table 8.

COOLING COIL TOTAL

TEMP. °F

CFM

86 72

2000

2000

3000

3000

6000

80 67 56 41 4.9 9.7 53 40 5.2 9.4
56 41 51 39 4.8 9.0 48 38 5.1 8.7
68 57 46 38 4.7 8.3 43 37 5.0 8.0
86 72
80 67 56 41 4.7 9.6 53 40 5.0 9.3
74 62 51 39 4.6 8.9 48 38 4.9 8.6
68 57 46 38 4.5 8.2 43 37 4.8 7.9
86 72
80 67 84 61 6.8 9.5 78 58 7.3 9.1
74 62 76 59 6.6 8.8 71 56 7.1 8.4
68 57 68 57 6.5 8.1 64 55 7.0 7.8
86 72
80 67 114 84 9.4 9.7 106 81 10.0 9.3
74 62 103 81 9.2 9.0 96 78 9.8 8.6
68 57 93 78 9.0 8.3 86 75 9.6 7.9
86 72
80 67 175 130 14.4 9.9 158 125 15.1 9.3
74 62 158 126 14.2 9.1 145 122 14.8 8.7
68 57 141 122 14.0 8.4 132 119 14.6 8.1

COND.

WATER

GPM

15

15

22.5

30

45

1

CONDENSER WATER TEMPERATURE, °F

100 110

TOT.
MBH

62 43 5.0 10.5 58 42 5.3 10.1

62 43 4.8 10.4 58 42 5.1 10.0

91 63 7.0 10.2 85 60 7.5 9.8

124 87 9.6 10.4 116 85 10.3 10.0

188 134 14.7 10.6 170 128 15.4 9.9

SENS.

MBH

Kw

2

WATER
RANGE

°F

TOT.
MBH

SENS.

MBH

Kw

2

WATER
RANGE

°FDB WB

Nominal Ratin

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