American Power Conversion AFX User Manual

TM

Network AFX SeriesAIR

Precision Air-Conditioning Units—60 Hz

®

Technical Data

Contents

Available Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Downflow 1
Upflow front-return 1
Upflow rear-return 1
Indoor rear-discharge centrifugal condenser 1
Indoor top-discharge centrifugal condenser 1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Introduction 3

Capacity 3

Air pattern 3

Control 3

Configuration 4

Front access 4

Humidity control 4

Compliance 4

Model Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Microprocessor controller 7

Overall cabinet 8

Blower assembly 9

Electrical panel 9

Humidifier 9

Electric reheat 9

Refrigeration system and compressor 9

Cooling coil 10

Condenser 10

Air filter 10

Water-regulating valves 10

Airflow sensor 10

Clogged filter alarm 10

Emergency drain pan 11

Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Emergency/environmental 13

External components 13

Control/monitoring 14

Reheat 15

System Components 15

APC NetworkAIR AFX Series: Contents i

Performance Specifications. . . . . . . . . . . . . . . . . . . . . . . . . 17

Net cooling capacity—air/remote condensing 17

Net cooling capacity—water 18

Net cooling capacity—glycol 19

Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Air system 21

Coolant requirements 21

Pump system 21

Water regulating valve–2-Way/3-Way, single seated 22

Humidification—solid state electrode canister 22

Filters 22

Evaporator coil 22

Compressor—scroll 22

Electric Reheat 23

Hot gas reheat 23

Hot water reheat 23

Steam reheat 23

Drycooler 23

Centrifugal indoor condenser 23

Physical data 24

Connection sizes 24

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Electric Reheat—6–14 ton 25

Electric Reheat—18–28 ton 26

Steam/hot water/or no-reheat—6 –14 ton 27

Steam/hot water/or no-reheat—18–28 ton 28

Indoor centrifugal condenser units 29

Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

General 31

Product 31

Individual systems 34

Options 36

Dimensional Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Downflow—6–8 ton 39
Downflow—10–18 ton 40
Downflow—20–28 ton 41
Upflow front-return—6–8 ton 42
Upflow front-return—10–18 ton 43
Upflow front-return—20–28 ton 44
Upflow rear-return—6–8 ton 45
Upflow rear-return—10–18 ton 46

ii APC NetworkAIR AFX Series: Contents

Upflow rear-return—20–28 ton 47
Indoor rear-discharge centrifugal condenser—6–8 ton 48
Indoor rear-discharge centrifugal condenser—10–18 ton 49
Indoor rear-discharge centrifugal condenser—20–28 ton 50
Indoor top-discharge centrifugal condenser—6–8 ton 51
Indoor top-discharge centrifugal condenser—10–18 ton 52
Indoor top-discharge centrifugal condenser—20–28 ton 53

Air-Cooled Condensers and Drycoolers . . . . . . . . . . . . . . . 55

Key to the model number 55
Air-cooled condenser—physical data 56

Air-cooled condenser—electrical data 57

Single-fan air-cooled condenser—6 ton 58
Dual-fan air-cooled condenser—6–14 ton 59
Triple-fan air-cooled condenser—14–20 ton 60
Dual-fan air-cooled condenser—20–26 ton 61
Triple-fan air-cooled condenser—26–28 ton 62

Drycooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Glycol cooled drycooler—physical data 63

Glycol cooled drycooler—electrical data 63

Dual-fan fluid cooler—6–8 ton 64
Triple-fan fluid cooler—10–12 ton 65
Dual-fan fluid cooler—14–18 ton 66
Triple-fan fluid cooler—20–28 ton 67

Pump Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Pump performance 69

Pump electrical data 69

Guidelines for Installation . . . . . . . . . . . . . . . . . . . . . . . . . 71

Room preparation 71

Unit location 71

Service access 71

Receiving the unit 71

Rigging 72

Floorstand 72

Utility connections 72

Power unit 72

Humidifier connections 72

Condensate drain 72

Water supply to humidifier 72

Water supply 73

APC Worldwide Customer Support . . . . . . . . . . . . . . . . . . 75

APC NetworkAIR AFX Series: Contents iii

Available Models

Downflow

6–8 ton 10–18 ton 20–28 ton

Upflow front-return

6–8 ton 10–18 ton 20–28 ton

Upflow rear-return

6–8 ton 10–18 ton 20–28 ton

Indoor rear-discharge centrifugal condenser

6–8 ton 10–18 ton 20–28 ton

Indoor top-discharge centrifugal condenser

6–8 ton 10–18 ton 20–28 ton

APC NetworkAIR AFX Series: Available Models 1

Overview

Introduction The APC AFX series precision air-conditioning system provides compact,

quiet, efficient, and reliable system solutions in the expanding precision air­conditioning market. The AFX series is offered in a wide variety of
capacities, configurations, and air patterns within an extremely compact
cabinet size.

Precision environmental control requirements now reach far beyond the
confines of the traditional data center or computer room to encompass a
larger suite of applications, referred to as technology rooms.

Typical technology room applications included:

• Computer rooms

• Telecommunication facilities

• Clean rooms

• Power equipment

• Medical equipment rooms

• Archives

• LAN environments

A worldwide network of APC representatives is fully qualified to provide
engineering, sales, installation and service for our products.

Our commitment to quality is demonstrated by the APC industry-leading
two-year parts warranty.

Capacity Available are 6 through 28 nominal tons (20 kW–96 kW) in nine models and

3 cabinet designs.

Air pattern Downflow units discharge air into the raised floor plenum eliminating the

need for air distributing ductwork. This enables the owner to locate the unit
where space is available or relocate the unit as the room changes or expands.
These units are suitable for areas with raised floors greater than 12" (305
mm) high. Air is drawn in through the top of the unit. Downflow units also
include a static regain duct which increases performance and efficiency while
reducing noise level.

Upflow units discharge air into either a plenum or ductwork. These units are
suitable for areas with raised floors less than 12" (300 mm) high. Air is drawn
in through the front on the standard design or optionally from the rear of the
unit.

Control The microprocessor controller provides advanced integrated system

operation and management ensuring simple, reliable and precise temperature
and humidity control.

APC NetworkAIR AFX Series: Overview 3

Configuration Air-cooled. Unit used with an air-cooled condenser. Refrigerant lines must

be run between the indoor unit and the condenser. Air cooled units require
low maintenance and have low operating costs.

Configurations are:

• Air-cooled with remote outdoor condenser.

• Air-cooled with indoor floor mounted condenser.

Wat er-c ooled. Unit used with a cooling tower or other source of water. Field

refrigeration piping is eliminated by a factory sealed and tested system. Water
piping to and from the unit is required.

Glycol-cooled. Unit used with a drycooler. The need for field refrigeration

piping is eliminated by a factory sealed and tested system. The glycol piping
is sealed, eliminating costly water treatment often encountered with open
cooling towers.

Remote-condensing. Unit used with a remote air-cooled condensing unit

which includes the compressor(s). This allows key maintenance procedures
to be located outside the critical environment helping eliminate access by
maintenance personnel in high security areas.

Front access The AFX Series has full service front access for routine servicing of

components. Front access also narrows the footprint of the unit making it
possible for units to be placed side by side.

Humidity control Humidity is managed through a self-contained steam canister humidifier for

maximum efficiency and ease of maintenance. Dehumidification control is
assured with a split evaporator coil which decreases the humidity level
without over-cooling the space, therefore reducing the need for electric
reheat.

Compliance The AFX Series has received agency approvals by ETL and MEA #223-99-E.

Electrical systems comply with NEC and UL 1995 standards.

4 APC NetworkAIR AFX Series: Overview

Model Selection

AFX – X X X – X– X – X X

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APC NetworkAIR AFX Series: Model Selection 5

Standard Features

Microprocessor controller

The microprocessor controller provides state of the art control for a wide
variety of environmental applications including the demanding requirements
of data centers, control rooms, clean rooms, switch rooms, MRI facilities,
CAT scan facilities and UPS Rooms. Operator Interface is provided by the
four-line, 80-character backlit LCD display. A user-friendly menu structure
along with clearly defined prompts allow the operator to easily move about
the program. Within the configuration menu the operator will find numerous
selections allowing the AFX to be tailored to meet specific requirements.

Sta tus. Complete status monitoring is provided within the status menu of the

microprocessor controller.

Available information includes:

• Current temperature • Cooling status

• Current humidity • Heating status

• Temperature setpoint • Humidification status

• Humidity setpoint • Dehumidification status

Alarms. Quick access to any alarm condition is facilitated through the menu

structure. The alarm key acts as a hot key, providing immediate access to the
alarm display menu. Presence of a new alarm will sound the audible alarm.
The red alarm LED on the display panel will remain illuminated until all
alarms have been cleared. The temperature and humidity alarm setpoints are
adjustable.

Alarm annunciations include:

• Loss of airflow • High temperature

• Clogged filter • Low temperature

• High head pressure • High humidity

• Low suction pressure • Low humidity

Setpoints. The microprocessor is provided with independent setpoints for:

• Heating • Humidification

• Cooling • Dehumidification

Automatic setpoint crossover protection will prevent the setting of the heat
setpoint above the cool setpoint and the humidify setpoint above the
dehumidify setpoint. Setpoint adjustment can be restricted to only operators
with knowledge of the security codes set within the security menu structure.

Configuration. Flexibility is offered through the use of the configuration

menu. Operating requirements are satisfied by changing the configuration
settings. New configurations are stored in EEPROM and protected from
unauthorized tampering by the four-digit security password, selected in the
security menu.

APC NetworkAIR AFX Series: Standard Features 7

Configuration options include:

• Fahrenheit or celsius display • Alarm input polarity

• Compressor minimum on time • Alarm enable

• Compressor minimum off time • Temperature deadbands

• Power loss restart time delay • Humidity deadbands

• Redundant unit grouping • Small room delay

Common alarm contact. A common alarm relay is installed on every

microprocessor. In the event of an alarm condition, the relay will change
state. The user can select which alarms change the state of the relay. This
feature allows for remote enunciation of alarm status.

Run times. The major components within the unit (motor, humidifier, and

compressor) have independent run timers that monitor and store accumulated
run hours on the components. The run timers are provided with operator
adjustable run time alarms.

Security. Multiple security levels prevent unauthorized adjustment of

important system parameters. The user may select a four-digit password for
setpoint and configuration changes. Should the password be forgotten, APC
can provide temporary access.

Monitoring. With the addition of a network communications card the

microprocessor may interface with the locally installed APC remote
monitoring and control system. Gateways are available for interfacing with
building management systems. Please check with APC for compatibility with
your building management system.

Cool inhibit. Prevents the unit from over-cooling during the

dehumidification cycle. If the space temperature falls below a user adjustable
setpoint, cooling will become inhibited until the space temperature returns to
setpoint.

Cool override. A manual toggle switch will allow one compressor operation

in the event of a microprocessor failure. The cool override can be field wired
to a snap acting thermostat for cooling control.

Remote shutdown. Events external to the unit, such as activation of a fire

suppression system may require the unit to shut down remotely. Additionally
this feature may be tied into a BMS that would allow remote control of the
units on/off status.

Remote relay shutdown. Remote shutdown of the NetworkAIR system

can be done by a factory installed relay. The relay can be ordered with a 24,
120, or 240 volt coil. The relay must be powered by others to disable the
NetworkAIR system.

Overall cabinet The frame is constructed of heavy gauge steel for maximum strength. Steel

access panels are insulated for quieter operation. The unit has been designed
for full service access from the front. The flush mounted panels are
removable using convenient quarter-turn fasteners. The access doors for the
electronic controller and electrical panel can be opened without interrupting
the operation of the unit.

8 APC NetworkAIR AFX Series: Standard Features

Blower assembly The AFX series includes multiple, centrifugal blower assemblies that have

been engineered for quiet, reliable operation. Lower blower speeds reduce
noise and extend belt and bearing life to 200,000L
lubricated bearings, a single-belt variable pitch drive, and an adjustable
motor base all ensure dependable operation. In addition, the air return
patterns evenly distribute air across the cooling coil.

hours. Permanently

10

Electrical panel The electrical panel contains the contactors, starters, overload protection

devices, and input power circuit breakers. Each wire (except jumpers) is
numbered every 3" (80 mm), or color coded to facilitate circuit tracing when
installing and servicing the unit. Each AC power circuit is individually
circuit-braker protected on all three phases. All compressor and motor
devices are thermally and short circuit protected. The electrical panel is
easily accessible from the front of the unit, and its modular construction
allows access to major components within the unit cabinet. An emergency
cool override switch can be manually activated to initiate cooling and a field
wired thermostat can be utilized to control cooling operation. All electrical
components are UL-listed and-recognized and all wiring conforms to NFPA
70 (NEC) and UL 1995 requirements.

Humidifier The humidifier utilizes a pure steam generator specifically designed for hi-

tech area environmental control. The pure steam eliminates contaminating
mineral deposits, potentially deadly bacteria, white dust and excessive
humidity. The humidifier requires little or no scheduled maintenance.
Automatic flushing combined with an indicator that signals when the canister
is to be changed, ensure maintenance free operation.

Electric reheat A three-phase electrical resistance heater sized to offset the sensible cooling

capacity in the dehumidification mode is incorporated in each AFX series
unit. The reheat elements are low watt density sheathed components. The
reheat is three phase to provide even phase loading. Reheat elements are
electrically and thermally protected.

Refrigeration system and compressor

The refrigeration system operates under an automatic microprocessor
controller for greater efficiency and accuracy. The heavy-duty compressors
are designed for year-round operation with a 15-year life expectancy. The
performance of the refrigeration system is enhanced by use of Scroll
Compressor Technology. Scroll compressors offer many advantages over
older technology semi-hermetic compressors. Vibration in the system is
greatly reduced by elimination of the reciprocating masses found in the semi­hermetic compressor. Risk of refrigeration leaks at compressor gaskets are
eliminated with the scroll compressors fully welded hermetic shell. The
design of the scroll is more tolerant to liquid flood back than the traditional
reciprocating compressor. Power consumption at full load is greatly reduced
with higher EER’s of the scroll. In addition reliability is enhanced due to the
fewer moving parts required using scroll technology. The end result is a
refrigeration system that offers the user optimized performance, efficiency
and reliability.

APC NetworkAIR AFX Series: Standard Features 9

Each refrigeration system includes:

• Thermal expansion valve with equalizer

• High and low pressure switches

• Sight glass with moisture indicator

• Filter drier

• Liquid line solenoid valve

Cooling coil The AFX utilizes dual distributors on one circuit of the refrigeration system.

During dehumidification the smaller distributor is turned off effectively
reducing the active circuits of the evaporator coil. During this mode of
operation the evaporating temperature is decreased, resulting in a lower coil
surface temperature. This reduction of the coil temperature decreases the
sensible heat ratio of the coil allowing a greater percentage of moisture
removal. Additionally the warmer air leaving the inactive circuits of the
evaporator coil blends with the near saturated air from the active circuits
raising the dry bulb temperature of the blended air well above saturation.

Condenser Water-and glycol-cooled systems employ a brazed plate condenser that uses

the latest heat transfer technology. Type 316L stainless plates are brazed
together in a vacuum furnace and comply with ASME pressure vessel code.
Pressure rating is 450 psi (3100 kPa).

Air filter The filtration of conditioned air is extremely vital to maintaining the clean,

particle-free environment required by electrical equipment. The AFX Series
uses 30% efficient (ASHRAE 52.1–92), 4" (102 mm) deep filters, with full
depth filter pleats. In addition to high filtration properties, these filters
produce a lower pressure drop than standard filters so less energy is required
during normal operation. Filters are easily replaced from the top on
downflow units and from the front on upflow units.

Water-regulating valves

The water-and glycol-cooled systems maintain proper performance by
sensing refrigerant discharge pressure and regulating the amount of water or
glycol supplied to the condenser. Two-way and three-way valves are
available. The standard valve pressure rating is 150 psi (1030 kPa).

Airflow sensor The air proving switch is continuously monitored by the microprocessor.

Upon detection of a loss of air flow the microprocessor will deactivate:
cooling, heating, humidification and dehumidification. After the air flow has
been restored for a predetermined period of time the microprocessor will
reactivate the functions as needed.

Clogged filter alarm An adjustable air pressure differently switch senses the pressure drop across

the filters. Upon sensing an excessive pressure drop, the switch activates the
alarm circuit of the microprocessor and displays a clogged filter message
simultaneously with an audible signal.

10 APC NetworkAIR AFX Series: Standard Features

Emergency drain pan

Systems are provided with two drain pans. The primary stainless steel
condensate drain pan lies directly under the cooling coil. A secondary
emergency drain pan provides additional protection by catching any water
before it reaches the subfloor and becomes a problem. An optional factory
supplied water detector in the emergency drain pan functions as your early
warning system in the event of any water problems. A threaded flange is
factory supplied for secondary drain connections. A secondary drain pan is

not provided on bottom return or precool units.

APC NetworkAIR AFX Series: Standard Features 11

Optional Features

The following optional features are available on the AFX Series unless
otherwise noted. Certain combinations of options may not be available.

Emergency/ environmental

External components

Smoke detector(s). The factory installed smoke detector(s) is designed to

sense smoke concentration in the return air stream. Upon detecting smoke
concentration an audible and visual alarm on the microprocessor will be
activated and the unit will immediately shut-down.

Firestat. A Firestat is available for installation in the air stream. If the return

air temperature reaches 125° F (52° C), the air conditioner will be turned off
and both an audible and visual alarm will be activated on the microprocessor.

Water detector(s). The solid-state water detector(s) activates an audible

and visual alarm on the microprocessor when moisture is detected. The water
detector is provided with 15' (5 m) of wire. Multiple detectors can be used in
the optional secondary drain pan in the sub floor.

Essential/non-essential lockout. When facilities have limited backup

power capacity, this lockout prevents the operation of electrical loads that are
not essential for continued site operation.

Floorstand. The heavy gauge floorstand raises the unit above the subfloor to

match the height of the raised floor. Heights are available from 6" to 36" (12"
to 36" for downflow units) in 3" increments and are adjustable +/- 1.5".
Adjustment is provided by threaded pedestals. Vibration absorbing pads are
included. The floorstand, pedestal and pads ship loose. Floorstands are
available for seismic applications.

Air deflector. An air deflector ships loose and attaches to the floorstand for

changing air direction from vertical to horizontal.

Plenum. The discharge plenum mounts on top of the upflow unit to direct

and distribute conditioned air. Manually adjustable, double deflecting grilles
are provided on 3 or 4 sides.Plenum shall be painted to match the color of the
unit.

Duct flange. A 1" (25 mm) duct flange is installed on a unit to provide

convenient connection to external ductwork. The duct flange can be installed
at the air outlet on upflow units, or at the air inlet on downflow units.

APC NetworkAIR AFX Series: Optional Features 13

Control/monitoring Custom alarm dry contact closures. Each unit can be equipped with any

or all of the listed dry contact closures. Upon activation of the associated
alarm, a discreet Normally Open or Normally Closed contact is available for
remote monitoring of that discreet alarm.

• High Temperature Alarm

• Low Temperature Alarm

• High Humidity Alarm

• Low Humidity Alarm

• Compressor High Pressure Alarm

• Fan Status Alarm

• Change Filter Alarm

• Fire Alarm (with addition of optional firestat)

• Smoke Detector Alarm (with addition of optional smoke detector)

• Humidifier Change Canister Alarm

• Water Underfloor Alarm (with addition of water detector)

• Additional Common Alarm

Redundant group control. Allows up to six NetworkAIR units the ability

to communicate with each other to automatically switch upon alarm
condition, or timed rotation. Can also allow standby units the ability to assist
the running system.

Remote display panel. The microprocessor controller allows facility or

building-maintenance personnel to evaluate and control the unit from up to
50 ft. away from the unit, without having to enter the secured space.

Remote sensor(s). Environmental sensors can be strategically placed, up to

50 ft. from the unit to better meet the site’s cooling needs. The sensor must be
positioned to permit air movement across the sensors.

Monitoring system. A PC-based monitoring application which provides

single terminal monitoring and control for up to 120 units. The Windows­based operated program (except Windows NT) has status screens for
individual unit conditions, mode of operation and alarms. The system
graphically presents temperature and relative humidity over time.
Temperature, relative humidity, alarm history, and other readings are stored
for future use.

Environmental monitoring unit. A stand-alone unit which performs

continuous temperature and humidity sensing through two available probes
(one included) and contact monitoring. The unit is controlled by available
web, control console, or SNMP interface with network connection. In the
event of an environmental anomaly, notification is sent to the customer via e­mail or SNMP. The unit is 18.25" × 9" × 2.75" (464 mm × 229 mm × 70 mm)
and sits in or on top of a rack. The probes extend up to 12' (3.66 m) from the
unit.

14 APC NetworkAIR AFX Series: Optional Features

Reheat Hot water or steam reheat. An on/off solenoid valve for steam reheat, or a

modulating valve for hot water reheat maintains the dry bulb temperature
when the system is in dehumidification and heat mode. Completely factory
pre-piped, the system includes a copper tube, aluminum-fin reheat coil,
solenoid valve, float, and thermostatic and steam trap for steam reheat only.

Hot gas reheat. The copper tube, aluminum fin hot gas reheat coil

maintains the leaving dry bulb temperature when the system is in the
dehumidification mode. The coil is controlled by the microprocessor through
a factory-piped-and-wired three-way heat reclaim regulator and check valve
(water/glycol only).

System Components Premium efficiency motor(s). High efficiency motors conserve energy

over periods of continuous fan operation.

High efficiency filter(s). Pleated final filters with an efficiency of 40% and

60% (ASHRAE 52.2), 4" (102 mm) deep, allow the removal of a greater
percentage of airborne particulate contaminates.

Prefilter(s). Intended to capture large airborne particulate contaminates,

thereby extending the life of the high-efficiency filter. Prefilters are 1" (25
mm) deep and easily disposable.

Condensate pump. The factory installed and wired condensate pump will

pump 36 gal/h (0.06 L/s) at 15 ft. (4.6 m) head.

High pressure water regulating valve(s). Water and glycol systems may

utilize an optional regulating valve, which operates with a maximum pressure
of 350 psi (2400 kPa), to automatically control condensing temperature.

Flared filter-drier connection. Flared threaded connections can be

provided on either side of the filter drier to expedite replacement.

Hot gas bypass. An auxiliary side-port hot gas bypass circuit. The

activation of the hot gas bypass circuit will maintain the evaporator coil
temperature during low load conditions. This optional feature will offer
longer compressor run times and minimize compressor cycling and
temperature fluctuations.

Pressure gauges. Suction and discharge pressure gauges may be provided

for the convenience of service personnel.

APC NetworkAIR AFX Series: Optional Features 15

Performance Specifications

Net cooling capacity—air/remote condensing

80° F DB, 67° F WB Total (BTUH) 78,100 111,000 132,800 147,200 158,000 226,900 267,300 296,800 329,600

CAPACITY IN BTU/H 6T 8T 10T 12T 14T 18T 20T 26T 28T

(26.7° C DB, 19.4° C WB) (kW) (22.9) (32.5) (38.9) (43.1) (46.3) (66.4) (78.3) (86.9) (96.5)
50% RH Sensible (BTUH) 72,500 89,000 125,200 134,200 151,700 184,600 239,800 258,100 283,300

(kW) (21.2) (26.1) (36.7) (39.3) (44.4) (54.1) (70.2) (75.6) (83.0)
75° F DB, 62.5° F WB Total (BTUH) 72,800 103,100 123,300 136,300 148,900 210,300 248,700 279,200 305,000
(23.9° C DB, 16.9° C WB) (kW) (21.3) (30.2) (36.1) (39.9) (43.6) (61.6) (72.8) (81.8) (89.3)
50% RH Sensible (BTUH) 70,900 88,000 122,400 131,800 148,900 181,600 237,300 256,300 277,900

(kW) (20.8) (25.8) (35.8) (38.6) (43.6) (53.2) (69.5) (75.0) (81.4)
75° F DB, 61° F WB Total (BTUH) 73,100 101,700 124,500 137,000 149,000 205,500 251,500 281,100 308,200
(23.9° C DB, 16.1° C WB) (kW) (21.4) (29.8) (36.5) (40.1) (43.6) (60.2) (73.6) (82.3) (90.2)
45% RH Sensible (BTUH) 73,100 95,000 124,500 137,000 149,000 195,600 251,500 281,100 308,200

(kW) (21.4) (27.8) (36.5) (40.1) (43.6) (57.3) (73.6) (82.3) (90.2)
72° F DB, 60° F WB Total (BTUH) 69,700 98,800 119,400 130,300 143,000 201,500 238,800 269,400 292,700
(22.2° C DB, 15.5° C WB) (kW) (20.4) (28.9) (35.0) (38.2) (41.9) (59.0) (69.9) (78.9) (85.7)
50% RH Sensible (BTUH) 68,700 86,000 119,400 127,800 143,000 177,700 231,200 251,400 272,700

(kW) (20.1) (25.2) (35.0) (37.4) (41.9) (52.0) (67.7) (73.6) (79.8)
72° F DB, 58.6° F WB Total (BTUH) 70,200 97,600 119,500 131,700 143,000 197,500 242,200 271,900 296,500
(22.2° C DB, 14.8° C WB) (kW) (20.6) (28.6) (35.0) (38.6) (41.9) (57.8) (70.9) (79.6) (86.8)
45% RH Sensible (BTUH) 70,200 92,500 119,500 131,700 143,000 191,100 242,200 271,900 296,500

(kW) (20.6) (27.1) (35.0) (38.6) (41.9) (56.0) (70.9) (79.6) (86.8)
70° F DB, 58.5° F WB Total (BTUH) 67,600 96,000 116,100 126,800 139,100 196,000 232,400 262,600 284,300
(21.1° C DB, 14.8° C WB) (kW) (19.8) (28.1) (34.0) (37.1) (40.7) (57.4) (68.0) (76.9) (83.2)
50% RH Sensible (BTUH) 66,900 84,400 116,100 125,300 139,100 174,400 226,300 246,800 266,200

(kW) (19.6) (24.7) (34.0) (36.7) (40.7) (51.1) (66.3) (72.3) (78.0)
70° F DB, 57.2° F WB Total (BTUH) 68,100 95,000 116,000 128,100 139,100 192,200 236,000 265,700 288,400
(21.1 C° DB, 14.0 C° WB) (kW) (19.9) (27.8) (34.0) (37.5) (40.7) (56.3) (69.1) (77.8) (84.4)
45% RH Sensible (BTUH) 68,100 90,400 116,000 128,100 139,100 186,700 236,000 265,700 288,400

(kW) (19.9) (26.5) (34.0) (37.5) (40.7) (54.7) (69.1) (77.8) (84.4)

MODEL

*Performance Specifications @ 95° F Ambient (AIR/GLYCOL/RC) or @ 105° F Condensing (WATER)

APC NetworkAIR AFX Series: Performance Specifications 17

Net cooling capacity—water

MODEL

CAPACITY IN BTU/H 6T 8T 10T 12T 14T 18T 20T 26T 28T

80° F DB, 67° F WB Total (BTUH) 85,500 121,000 144,600 160,700 171,300 246,200 298,500 340,000 361,500

(26.7°C DB, 19.4° C WB) (kW) (25.0) (35.4) (42.3) (47.1) (50.2) (72.1) (87.4) (99.6) (105.9)

50% RH Sensible (BTUH) 76,100 93,500 130,000 139,500 157,900 193,300 252,900 276,500 295,900

(kW) (22.3) (27.4) (38.1) (40.8) (46.2) (56.6) (74.1) (81.0) (86.6)

75° F DB, 62.5° F WB Total (BTUH) 79,100 111,800 133,100 147,800 158,000 226,800 283,500 312,100 332,400

(26.7° C DB, 19.4° C WB) (kW) (23.2) (32.7) (39.0) (43.3) (46.3) (66.4) (83.0) (91.4) (97.3)

50% RH Sensible (BTUH) 74,300 92,200 127,200 137,300 154,000 189,500 222,800 271,500 290,600

(kW) (21.8) (27.0) (37.2) (40.2) (45.1) (55.5) (65.2) (79.5) (85.1)

75° F DB, 61° F WB Total (BTUH) 73,557 110,000 125,928 147,800 152,460 222,000 281,200 304,600 324,400

(23.9° C DB, 16.1° C WB) (kW) (21.5) (32.2) (36.9) (43.3) (44.6) (65.0) (82.3) (89.2) (95.0)

45% H Sensible (BTUH) 73,557 99,600 125,928 147,800 152,460 203,800 228,700 293,100 312,400

(kW) (21.5) (29.2) (36.9) (43.3) (44.6) (59.7) (67.0) (85.8) (91.5)

72° F DB, 60° F WB Total (BTUH) 75,500 106,900 127,000 141,100 151,100 216,700 263,000 297,900 317,100

(22.2° C DB, 15.5° C WB) (kW) (22.1) (31.3) (37.2) (41.3) (44.2) (63.5) (77.0) (87.2) (92.9)

50% RH Sensible (BTUH) 72,300 90,100 123,600 133,900 149,800 185,300 242,800 265,900 283,400

(kW) (21.2) (26.4) (36.2) (39.2) (43.9) (54.3) (71.1) (77.9) (83.0)

72° F DB, 58.6° F WB Total (BTUH) 71,577 105,400 122,364 132,561 148,302 212,500 264,600 291,000 310,300

(22.2° C DB, 14.8° C WB) (kW) (21.0) (30.9) (35.8) (38.8) (43.4) (62.2) (77.5) (85.2) (90.9)

45% RH Sensible (BTUH) 71,577 97,000 122,364 132,561 148,302 198,800 264,600 284,300 304,200

(kW) (21.0) (28.4) (35.8) (38.8) (43.4) (58.2) (77.5) (83.2) (89.1)

70° F DB, 58.5° F WB Total (BTUH) 73,300 103,800 123,200 136,700 148,800 210,300 255,300 288,700 307,400

(22.2° C DB, 14.8° C WB) (kW) (21.5) (30.4) (36.1) (40.0) (43.6) (61.6) (74.8) (84.5) (90.0)

50% RH Sensible (BTUH) 71,300 88,400 121,000 130,800 148,800 181,700 237,500 260,000 277,700

(kW) (20.9) (25.9) (35.4) (38.3) (43.6) (53.2) (69.5) (76.1) (81.3)

70° F DB, 57.2° F WB Total (BTUH) 70,587 102,400 119,790 129,492 148,600 206,400 257,400 282,500 301,400

(22.2° C DB, 14.8° C WB) (kW) (20.7) (30.0) (35.1) (37.9) (43.5) (60.4) (75.4) (82.7) (88.3)

45% RH Sensible (BTUH) 70,587 94,600 119,790 129,492 148,600 193,900 257,400 277,200 296,700

(kW) (20.7) (27.7) (35.1) (37.9) (43.5) (56.8) (75.4) (81.2) (86.9)

*Performance Specifications @ 95° F Ambient (AIR/GLYCOL/RC) or @ 105° F Condensing (WATER)

18 APC NetworkAIR AFX Series: Performance Specifications

Net cooling capacity—glycol

MODEL

CAPACITY IN BTU/H 6T 8T 10T 12T 14T 18T 20T 26T 28T

80° F DB, 67° F WB

(26.7°C DB, 19.4°C WB) (kW) (22.8) (32.4) (38.1) (42.7) (45.5) (65.9) (79.1) (86.8) (96.2)

50% RH Sensible (BTUH) 72,300 88,800 123,400 133,600 150,100 184,000 241,000 257,900 282,900

75° F DB, 62.5° F WB Total (BTUH) 71,900 102,000 121,600 133,900 145,800 206,800 256,400 274,400 302,100

(23.9°C DB, 16.9°C WB) (kW) (21.1) (29.9) (35.6) (39.2) (42.7) (60.6) (75.1) (80.3) (88.5)

50% RH Sensible (BTUH) 70,300 87,400 121,600 130,600 145,800 179,900 210,600 251,800 277,500

75° F DB, 61° F WB Total (BTUH) 69,597 100,600 121,600 129,294 145,700 201,700 254,400 278,700 305,200

(23.9°C DB, 16.1°C WB) (kW) (20.4) (29.5) (35.6) (37.9) (42.7) (59.1) (74.5) (81.6) (89.4)

45% RH Sensible (BTUH) 69,597 94,400 121,600 129,294 145,700 193,600 216,500 278,700 305,200

72° F DB, 60° F WB Total (BTUH) 69,000 97,300 116,100 127,500 139,300 197,200 237,700 266,400 285,400

(22.2°C DB, 15.5°C WB) (kW) (20.2) (28.5) (34.0) (37.3) (40.8) (57.7) (69.6) (78.0) (83.6)

50% RH Sensible (BTUH) 69,000 85,300 116,100 125,500 139,300 175,500 230,600 251,800 265,100

72° F DB, 58.6° F WB Total (BTUH) 68,310 96,200 116,100 124,245 139,300 193,000 241,600 268,600 292,500

(22.2°C DB, 14.8°C WB) (kW) (20.0) (28.2) (34.0) (36.4) (40.8) (56.5) (70.7) (78.6) (85.6)

45% RH Sensible (BTUH) 68,310 91,200 116,100 124,245 139,300 188,500 241,600 268,600 292,500

70° F DB, 58.5° F WB Total (BTUH) 66,900 94,400 112,500 125,200 135,100 191,100 230,600 259,300 278,600

(22.2°C DB, 14.8°C WB) (kW) (19.6) (27.6) (32.9) (36.7) (39.6) (56.0) (67.5) (75.9) (81.6)

50% RH Sensible (BTUH) 66,900 83,500 112,500 125,200 135,100 171,900 225,300 247,100 265,100

70° F DB, 57.2° F WB Total (BTUH) 66,900 93,300 112,500 125,100 135,000 187,300 234,600 261,900 284,100

(22.2°C DB, 14.8°C WB) (kW) (19.6) (27.3) (32.9) (36.6) (39.5) (54.8) (68.7) (76.7) (83.2)

45% RH Sensible (BTUH) 66,900 89,400 112,500 125,100 135,000 183,800 234,600 261,900 284,100

Total (BTUH) 77,700 110,700 130,200 145,800 155,300 225,100 270,000 296,400 328,700

(kW) (21.2) (26.0) (36.1) (39.1) (44.0) (53.9) (70.6) (75.5) (82.8)

(kW) (20.6) (25.6) (35.6) (38.2) (42.7) (52.7) (61.7) (73.7) (81.3)

(kW) (20.4) (27.6) (35.6) (37.9) (42.7) (56.7) (63.4) (81.6) (89.4)

(kW) (20.2) (25.0) (34.0) (36.7) (40.8) (51.4) (67.5) (73.7) (77.6)

(kW) (20.0) (26.7) (34.0) (36.4) (40.8) (55.2) (70.7) (78.6) (85.6)

(kW) (19.6) (24.4) (32.9) (36.7) (39.6) (50.3) (66.0) (72.4) (77.6)

(kW) (19.6) (26.2) (32.9) (36.6) (39.5) (53.8) (68.7) (76.7) (83.2)

*Performance Specifications @ 95° F Ambient (AIR/GLYCOL/RC) or @ 105° F Condensing (WATER)

APC NetworkAIR AFX Series: Performance Specifications 19

Performance Data

Air system

AIR/WATER/
GLYCOL/RC

Air Volume (CFM) 4,200 4,400 7,000 7,200 8,400 8,800 12,600 13,200 14,200

(L/s) (1,982) (2,077) (3,304) (3,398) (3,965) (4,154) (5,947) (6,230) (6,702)

Fan Motor HP (qty) 3 (1) 3 (1) 3 (2) 3 (2) 3 (2) 3 (2) 3 (3) 3 (3) 3 (3)

(kW) (2.2) (1) (2.2) (1) (2.2) (2) (2.2) (2) (2.2) (2) (2.2 (2) (2.2) (3) (2.2) (3) (2.2) (3)

External Static Pressure (inches) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

(Pa) (125) (125) (125) (125) (125) (125) (125) (125) (125)

Number of Fans 1 1 2 2 2 2 3 3 3

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Coolant requirements

WATER MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

65° F Water In (GPM) 6.2 8.9 10.1 11.7 11.4 17.9 20.2 23.1 23.4

(18.3° C) (L/s) (0.4) (0.6) (0.6) (0.7) (1.7) (1.1) (1.3) (1.5) (1.5)

Pressure Drop (psig) 3.2 4.9 4.8 3.8 2.9 4.8 4.9 4.6 4.7

(kPa) (22.1) (33.8) (33.1) (26.2) (20.0) (33.1) (33.8) (31.7) (32.9)

THR (MBH) 114,435 160,827 195,092 216,444 228,736 323,814 374,456 444,410 456,066

(kW) (33.5) (47.1) (57.1) (63.4) (67.0) (94.8) (109.6) (130.1) (133.5)

75° F Water In (GPM) 8.3 11.8 13.4 15.6 15.2 23.9 26.9 30.8 31.2

(23.9 °C)(L/s) (0.5) (0.7) (0.8) (1.0) (1.0) (1.5) (1.7) (1.9) (2.0)

Pressure Drop (psig) 5.7 8.7 8.6 6.7 5.2 8.6 8.7 8.1 8.3

(kPa) (39.3) (60.0) (59.3) (96.2) (35.9) (59.3) (60.0) (55.9) (57.2)

THR (MBH) 114,435 160,827 195,092 216,444 228,736 323,814 374,456 444,410 456,066

(kW) (33.5) (47.1) (57.1) (63.4) (67.0) (94.8) (109.6) (130.1) (133.5)

85° F Water In (GPM) 18.6 25.7 28.4 33.8 30.7 52.1 58.1 65.8 69.3

(29.4 °C) (L/s) (1.2) (1.6) (1.8) (2.1) (1.9) (3.3) (3.7) (4.2) (4.4)

Pressure Drop (psig) 27.3 39.9 37.6 30.1 20.8 39.3 39.4 36.1 39.9

(kPa) (188.3) (275.1) (259.3) (207.6) (143.9) (271.0) (271.7) (249.0) (275.2)

THR (MBH) 114,435 160,827 195,092 216,444 228,736 323,814 374,456 444,410 456,066

(kW) (33.5) (47.1) (57.1) (63.4) (67.0) (94.8) (109.6) (130.1) (133.5)

GLYCOL

105° F Glycol In (GPM) 17.5 25.2 31.0 31.7 34.9 50.8 61.4 66.9 67.8

(40.6 °C) (L/s) (1.1) (1.6) (2.0) (2.0) (2.2) (3.2) (3.9) (4.2) (4.3)

Pressure Drop (psig) 12.0 21.5 26.2 26.1 9.3 11.0 11.8 10.2 10.5

(kPa) (82.8) (148.3) (180.7) (180.0) (64.1) (75.9) (81.4) (70.3) (72.4)

THR (MBH) 110,543 156,191 188,188 208,802 220,638 313,448 361,520 432,200 442,906

(kW) (32.4) (45.7) (55.1) (61.1) (64.6) (91.8) (105.9) (126.6) (129.7)

Pump system

GLYCOL MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Horsepower 3/4 3/4 1 1 1 1-1/2 2 3 3

Total Head (feet) (@ design GPM) 62 59 69 68 65 65 80 92 92

(m) (18.9) (18.0) (21.0) (20.7) (19.8) (19.8) (24.4) (28.0) (28.0)

Available Ext. Head (feet) 28 33 27 26 37 37 51 62 61

(m) (8.5) (10.1) (8.2) (7.9) (11.3) (11.3) (15.5) (18.9) (18.6)

APC NetworkAIR AFX Series: Performance Data 21

Water regulating valve–2-Way/3-Way, single seated

WATER/
GLYCOL

Size (inches - NPT) 1-1/4 1-1/4 3/4 (2) 3/4 (2) 1 (2) 1-1/4 (2) 1-1/4 (2) 1-1/2 (2) 1-1/2 (2)

Cv 14 14 20 20 28 28 40 40 40

*2-Way/3-Way Single Seated, 150 psig W.W.P. max

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Humidification—solid state electrode canister

AIR/WATER/
GLYCOL/RC

Flush Cycle automatic automatic automatic automatic automatic automatic automatic automatic automatic

Lbs/hr. 10 10 10 10 10 10 20 20 20

(Kg/hr.) (4.5) (4.5) (4.5) (4.5) (4.5) (4.5) (9.0) (9.0) (9.0)

kW 3.4 3.4 3.4 3.4 3.4 3.4 6.8 6.8 6.8

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Filters

AIR/WATER/
GYLCOL/RC

Quantity 1 1 2 2 2 2 3 3 3

Size (inches) Downflow 30.5 x 30.5 30.5 x 30.5 30.5 x 30.5 30.5 x 30.5 30.5 x 30.5 30.5 x 30.5 30.5 x 30.5 30.5 x 30.5 30.5 x 30.5

(mm) (774.7 ×

Size (inches) Upflow 27.0 × 35.5 27.0 × 35.5 27.0 × 35.5 27.0 × 35.5 27.0 × 35.5 27.0 × 35.5 27.0 × 35.5 27.0 × 35.5 27.0 × 35.5

(mm) (685.8 ×

Depth (inches) 4 4 4 4 4 4 4 4 4

(mm) (101.6) (101.6) (101.6) (101.6) (101.6) (101.6) (101.6) (101.6) (101.6)

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

774.7)

901.7)

(774.7 ×

74.7)

(685.8 ×

901.7)

(774.7 ×

774.7)

(685.8 ×

901.7)

(774.7 ×

774.7)

(685.8 ×

901.7)

(774.7 ×

774.7)

(685.8 ×

901.7)

(774.7 ×

774.7)

(685.8 ×

901.7)

(774.7 ×

774.7)

(685.8 ×

901.7)

(774.7 ×

774.7)

(685.8 ×

901.7)

(774.7 ×

774.7)

(685.8 ×

901.7)

*30% efficient, ASHRAE Standard 52.1-92, UL Class 2

Evaporator coil

AIR/WATER/
GLCOL/RC

Face Area (ft

(m

Rows Deep 4 4 4 4 4 4 4 4 4

Face Velocity (FPM) 442 463 329 338 394 413 382 400 430

(m/s) (2.25) (2.35) (1.67) (1.72) (2.00) (2.10) (1.94) (2.03) (2.18)

2

2

)

Compressor—scroll

AIR/WATER/
GLYCOL/RC

EER—Air 13.6 13.0 13.5 13.3 13.6 13.0 13.1 13.2 13.1

EER—Water 17.3 16.3 17.6 16.8 17.3 16.3 16.5 16.6 16.7

EER—Glycol 12.5 12.11 12.3 12.2 12.5 12.1 12.1 12.2 12.13

Quantity 1 1 2 2 2 2 2 2 2

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

)

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

9.5 9.5 21.3 21.3 21.3 21.3 33.0 33.0 33.0

(0.88) (0.88) (1.98) (1.98) (1.98) (1.98) (3.07) (3.07) (3.07)

22 APC NetworkAIR AFX Series: Performance Data

Electric Reheat

AIR/WATER/
GLYCOL/RC

MBH total (includes motor heat) 28.4 28.4 56.8 56.8 56.8 56.8 85.1 85.1 85.1

(kW) (8.3) (8.3) (16.6) (16.6) (16.6) (16.6) (24.9) (24.9) (24.9)

Stages 1 1 2 2 2 2 2 2 2

*With equal loading on each phase, rated at 240V/3Ø and 480V/3Ø

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Hot gas reheat

WATER/GLYCOL MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

MBH (includes motor heat) 26.3 32.8 83.0 91.2 92.8 92.8 146.8 146.8 146.8

(kW) (7.71) (9.62) (24.30) (26.70) (27.20) (27.20) (43.05) (43.05) (43.05)

Hot water reheat

AIR/WATER/
GLYCOL/RC

MBH (includes motor heat) 81.6 89.5 138.2 151.7 163.0 193.1 250.7 272.1 303.4

(kW) (23.93) (26.24) (40.52) (44.48) (47.80) (56.63) (73.52) (79.79) (88.97)

GPM 3.0 4.6 2.5 3.0 3.5 5.5 5.0 6.0 8.0

(L/s) (0.19) (0.29) (0.16) (0.19) (0.22) (0.34) (0.31) (0.37) (0.50)

Pressure Drop (psig) 2.7 3.4 3.0 3.5 3.9 6.2 7.4 9.5 14.4

(kPa) (18.0) (22.6) (20.0) (23.3) (26.0) (41.3) (49.3) (63.3) (96.0)

Control Valve solenoid solenoid solenoid solenoid solenoid solenoid solenoid solenoid solenoid

*Entering water temperature – 180° F (82.2° C)

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Steam reheat

AIR/WATER/
GLYCOL/RC

MBH (includes motor heat) 79.3 86.9 133.7 143.3 163.5 188.4 242.8 272.6 297.5

(kW) (23.25) (25.48) (39.21) (42.02) (47.94) (55.25) (71.20) (79.94) (87.24)

Control Valve solenoid solenoid solenoid solenoid solenoid solenoid solenoid solenoid solenoid

*5 psig (34.5 KP2) saturated supply

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Drycooler

GLYCOL MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

GPM 18 25 31 32 35 51 61 67 68

(L/S) (1.1) (1.6) (2.0) (2.0) (2.2) (3.2) (3.8) (4.2) (4.3)

Pressure Drop (psig) 9.1 6.1 6.5 6.9 8.2 7.4 7.4 8.7 8.7

(kPa) (62.7) (42.1) (44.8) (47.6) (56.6) (51.0) (51.0) (60.0) (60.0)

Centrifugal indoor condenser

AIR MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Air Quantity - CFM 5,000 5,500 7,000 8,000 9,000 11,000 13,000 14,000 15,000

(L/s) (2380) (2619) (3333) (3809) (4286) (5238) (6191) (6666) (7143)

Fan Motor HP (qty) 3 (1) 3 (1) 3 (2) 3 (2) 3 (2) 3 (2) 3 (3) 3 (3) 3 (3)

(kW) (2.2) (1) (2.2) (1) (2.2) (2) (2.2) (2) (2.2) (2) (2.2) (2) (2.2) (3) (2.2) (3) (2.2) (3)

Blower and Motor Quantity 1 1 2 2 2 2 3 3 3

External Static Pressure (inches) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

(Pa) (125) (125) (125) (125) (125) (125) (125) (125) (125)

APC NetworkAIR AFX Series: Performance Data 23

Physical data

AIR MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

Height (inches) 76 76 76 76 76 76 76 76 76

(mm) (1930) (1930) (1930) (1930) (1930) (1930) (1930) (1930) (1930)

Length (inches) 34.38 34.38 66.35 66.35 66.35 66.35 98.32 98.32 98.32

(mm) (873.25) (873.25) (1685.29) (1685.29) (1685.29) (1685.29) (2997.33) (2997.33) (2997.33)

Depth (inches) 34.38 34.38 34.38 34.38 34.38 34.38 34.38 34.38 34.38

(mm) (873.25) (873.25) (873.25) (873.25) (873.25) (873.25) (873.25) (873.25) (873.25)

Weight (lbs) 850 975 1,175 1,250 1,400 1,550 1,750 1,900 2,100

(Approx. kg) (386) (442) (533) (567) (635) (703) (794) (862) (953)

WATER/GLYCOL

Weight (Lbs) 1,000 1,050 1,800 1,850 1,900 1,950 2,650 2,700 2,750

(Approx. kg) (454) (477) (818) (841) (863) (886) (1204) (1227) (1250)

Unit Volume (gallons) 1 1 2 2 2 2 3 3 3

(Liters) (3.78) (3.78) (7.56) (7.56) (7.56) (7.56) (11.34) (11.34) (11.34)

REMOTE CONDENSING – INDOOR UNITS

Weight (lbs) 870 920 1,550 1,600 1,650 1,700 2,250 2,300 2,350

(Approx. kg) (395) (418) (704) (727) (750) (773) (1023) (1045) (1068)

Connection sizes

AIR/REMOTE
CONDENSING

Liquid Line (inches) ODS 1/2 5/8 1/2 1/2 5/8 5/8 5/8 5/8 5/8

AIR

Discharge Line (inches) ODS 5/8 1-1/8 5/8 5/8 7/8 1-1/8 1-1/8 1-1/8 1-1/8

REMOTE CONDENSING

Suction Line (inches) ODS 7/8 1-1/8 7/8 7/8 7/8 1-1/8 1-3/8 1-3/8 1-3/8

WATER/GLYCOL

Water/Glycol In/Out (inches) ODS 1-3/8 1-3/8 1-3/8 1-5/8 1-5/8 1-5/8 1-5/8 2-1/8 2-1/8

AIR/WATER/GLYCOL/RC

Condensate Drain (inches) IDS 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8

Humidifier Line (inches) ODF 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4

Hot Water In/Out (inches) ODS 5/8 5/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8

Steam Reheat In/Out (inches) ODS 5/8 5/8 5/8 5/8 5/8 5/8 7/8 7/8 7/8

MODEL 6T 8T 10T 12T 14T 18T 20T 26T 28T

24 APC NetworkAIR AFX Series: Performance Data

Electrical Data

Electric Reheat—6–14 ton

HUMIDIFIER Electric Stea m or None
VO LTAG E 208 230 460 575 208 230 460 575
6T FLA Air 42.4 42.4 21.1 17.5 41.6 42.4 21.1 17.5

WSA Air 55.2 55.4 27.3 22.8 54.2 55.4 27.3 22.8

MOP Air 70.0 70.0 35.0 30.0 70.0 70.0 35.0 25.0

8T FLA Air 51.1 51.1 25.5 21.0 50.3 51.1 25.5 21.0

WSA Air 71.3 71.5 36.4 29.5 70.3 71.5 36.4 29.5

MOP Air 100.0 100.0 50.0 45.0 100.0 100.0 50.0 40.0

10T FLA Air 64.5 64.5 31.9 26.7 62.0 63.6 31.5 26.3

WSA Air 81.5 83.1 42.0 35.0 80.7 83.1 42.0 35.0

MOP Air 90.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0

12T FLA Air 66.9 66.5 32.3 26.7 64.9 66.5 32.3 26.6

WSA Air 84.7 84.9 42.0 35.4 82.5 84.9 42.0 35.4

MOP Air 100.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0

14T FLA Air 68.4 67.4 33.5 28.0 65.8 67.4 33.5 28.0

WSA Air 84.7 84.9 42.0 35.4 82.5 84.9 42.0 35.4

MOP Air 100.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0

Water 40.1 40.1 20.0 16.5 39.3 40.1 20.0 16.5
Glycol 43.9 43.9 21.9 18.1 43.1 43.9 21.9 18.1
Remote Condensing 40.8 40.0 20.0 16.7 24.4 25.2 12.6 10.7

Water 55.2 55.4 27.3 22.8 54.2 55.4 27.3 22.8
Glycol 55.2 55.4 27.3 22.8 54.2 55.4 27.3 22.8
Remote Condensing 51.0 50.0 25.0 20.9 30.5 31.5 15.8 13.4

Water 70.0 70.0 35.0 30.0 70.0 70.0 35.0 25.0
Glycol 70.0 70.0 35.0 30.0 70.0 70.0 35.0 25.0
Remote Condensing 50.0 50.0 25.0 25.0 35.0 35.0 15.0 15.0

Water 47.9 47.9 23.9 19.7 47.1 47.9 23.9 19.7
Glycol 53.2 53.2 27.0 21.8 52.4 53.2 27.0 21.8
Remote Condensing 40.8 40.0 20.0 16.7 24.4 25.2 12.6 10.7

Water 71.3 71.5 36.4 29.5 70.3 71.5 36.4 29.5
Glycol 71.3 71.5 36.4 29.5 70.3 71.5 36.4 29.5
Remote Condensing 51.0 50.0 25.0 20.9 30.5 31.5 15.8 13.4

Water 100.0 100.0 50.0 45.0 100.0 100.0 50.0 40.0
Glycol 100.0 100.0 50.0 45.0 100.0 100.0 50.0 40.0
Remote Condensing 50.0 50.0 25.0 20.0 30.0 35.0 15.0 15.0

Water 64.5 64.5 31.9 26.7 59.7 61.3 30.3 25.4
Glycol 64.5 65.1 32.2 26.9 63.5 65.1 32.2 26.9
Remote Condensing 65.2 65.2 32.6 27.4 48.8 50.4 25.2 21.4

Water 81.5 83.1 42.0 35.0 80.7 83.1 42.0 35.0
Glycol 81.5 83.1 42.0 35.0 80.7 83.1 42.0 35.0
Remote Condensing 81.5 81.5 40.8 34.3 61.0 63.0 31.5 26.8

Water 90.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0
Glycol 90.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0
Remote Condensing 70.0 70.0 35.0 30.0 50.0 60.0 30.0 25.0

Water 64.5 64.5 31.9 26.7 62.8 64.4 31.1 25.7
Glycol 69.7 67.9 33.1 27.2 66.3 67.9 33.1 27.2
Remote Condensing 65.2 65.2 32.6 27.4 48.8 50.4 25.2 21.4

Water 84.7 84.9 42.0 35.4 82.5 84.9 42.0 35.4
Glycol 84.7 84.9 42.0 35.4 82.5 84.9 42.0 35.4
Remote Condensing 81.5 81.5 40.8 34.3 61.0 63.0 31.5 26.8

Water 100.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0
Glycol 100.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0
Remote Condensing 70.0 70.0 35.0 30.0 50.0 60.0 30.0 25.0

Water 64.8 65.1 32.4 27.0 63.5 65.1 32.4 27.0
Glycol 71.4 68.9 34.3 28.6 67.3 68.9 34.3 28.6
Remote Condensing 65.2 65.2 32.6 27.4 48.8 50.4 25.2 21.4

Water 84.7 84.9 42.0 35.4 82.5 84.9 42.0 35.4
Glycol 84.7 84.9 42.0 35.4 82.5 84.9 42.0 35.4
Remote Condensing 81.5 81.5 40.8 34.3 61.0 63.0 31.5 26.8

Water 100.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0
Glycol 100.0 90.0 45.0 35.0 90.0 90.0 45.0 35.0
Remote Condensing 70.0 70.0 35.0 45.0 50.0 60.0 30.0 25.0

FLA= Full Load Amperes MOP=Maximum Overcurrent Protection WSA=Wire Size Ampere

*Values are calculated based on 3– phase power

APC NetworkAIR AFX Series: Electrical Data 25

Electric Reheat—18–28 ton

HUMIDIFIER Electric Stea m o r N one

VOLTAGE 208 230 460 575 208 230 460 575

18T FLA Air 85.7 82.5 41.1 32.9 74.5 76.1 37.9 31.5

Water 79.3 76.1 37.9 30.3 71.3 72.9 36.3 30.2

Glycol 89.9 86.7 44.1 34.5 76.6 78.2 39.4 32.3

Remote Condensing 65.2 65.2 32.6 27.4 48.8 50.4 25.2 21.4

WSA Air 113.7 110.1 56.2 44.3 98.6 101.0 51.1 42.0

Water 113.7 110.1 56.2 44.3 98.6 101.0 51.1 42.0

Glycol 113.7 110.1 56.2 44.3 98.6 101.0 51.1 42.0

Remote Condensing 81.5 81.5 40.8 34.3 61.5 63.0 31.5 26.8

MOP Air 125.0 125.0 70.0 50.0 125.0 125.0 60.0 50.0

Water 125.0 125.0 70.0 50.0 125.0 125.0 60.0 50.0

Glycol 125.0 125.0 70.0 50.0 125.0 125.0 60.0 50.0

Remote Condensing 70.0 70.0 35.0 30.0 50.0 60.0 30.0 25.0

20T FLA Air 104.8 105.0 52.2 43.5 102.6 105 52.2 43.5

Water 98.6 101.0 50.2 41.9 98.6 101.0 50.2 41.9

Glycol 110.0 107.6 53.5 44.5 105.2 107.6 53.5 44.5

Remote Condensing 92.2 92.6 46.3 39.0 73.2 75.6 37.8 32.1

WSA Air 144.7 141.0 68.3 55.0 137.4 141.0 68.3 55.0

Water 144.7 141.0 68.3 55.0 137.4 141.0 68.3 55.0

Glycol 144.7 141.0 68.3 55.0 137.4 141.0 68.3 55.0

Remote Condensing 115.3 115.8 57.9 48.8 91.5 94.5 47.3 40.1

MOP Air 175.0 175.0 80.0 60.0 150.0 150.0 80.0 60.0

Water 175.0 175.0 80.0 60.0 150.0 150.0 80.0 60.0

Glycol 175.0 175.0 80.0 60.0 150.0 150.0 80.0 60.0

Remote Condensing 100.0 100.0 50.0 40.0 80.0 80.0 40.0 35.0

26T FLA Air 118.9 108.6 54.2 45.1 109.7 108.6 54.2 45.1

Water 110.5 104.8 52.3 43.6 105.5 104.8 52.3 43.6

Glycol 122.4 110.6 55.2 45.7 111.5 110.2 55.0 45.7

Remote Condensing 92.2 92.6 46.3 39.0 73.2 75.6 37.8 32.1

WSA Air 156.1 151.2 68.8 57.5 143.8 147.4 68.8 57.5

Water 156.1 151.2 68.8 57.5 143.8 147.4 68.8 57.5

Glycol 156.1 151.2 68.8 57.5 143.8 147.4 68.8 57.5

Remote Condensing 115.3 115.8 57.9 48.8 91.5 94.5 47.3 40.1

MOP Air 175.0 175.0 80.0 60.0 175.0 175.0 80.0 60.0

Water 175.0 175.0 80.0 60.0 175.0 175.0 80.0 60.0

Glycol 175.0 175.0 80.0 60.0 175.0 175.0 80.0 60.0

Remote Condensing 100.0 100.0 50.0 40.0 80.0 80.0 40.0 35.0

28T FLA Air 115.2 107.1 53.5 44.7 108.1 107.1 53.5 44.7

Water 107.7 103.7 51.8 43.3 104.3 103.7 51.8 43.3

Glycol 117.9 108.3 54.1 45.1 109.4 108.3 54.1 45.1

Remote Condensing 92.2 92.6 46.3 39.0 73.2 75.6 37.8 32.1

WSA Air 156.1 151.2 78.9 63.0 143.8 147.4 75.5 62.6

Water 156.1 151.2 78.9 63.0 143.8 147.4 75.5 62.6

Glycol 156.1 151.2 78.9 63.0 143.8 147.4 75.5 62.6

Remote Condensing 115.3 115.8 57.9 48.8 91.5 94.5 47.3 40.1

MOP Air 175.0 175.0 100.0 80.0 175.0 175.0 90.0 70.0

Water 175.0 175.0 100.0 80.0 175.0 175.0 90.0 70.0

Glycol 175.0 175.0 100.0 80.0 175.0 175.0 90.0 70.0

Remote Condensing 100.0 100.0 50.0 40.0 80.0 80.0 40.0 35.0

FLA= Full Load Amperes MOP=Maximum Overcurrent Protection WSA=Wire Size Amperes

*Values are calculated based on 3– phase power

26 APC NetworkAIR AFX Series: Electrical Data

Steam/hot water/or no-reheat—6–14 ton

HUMIDIFIER Electric St ea m or None
VO LTAG E 208 230 460 575 208 230 460 575
6T FLA Air 42.4 40.0 19.9 16.0 26.0 25.2 12.5 10.0

WSA Air 55.2 52.4 25.8 21.0 34.7 33.9 16.5 13.5

MOP Air 70.0 60.0 30.0 25.0 50.0 50.0 25.0 20.0

8T FLA Air 51.1 48.7 24.3 19.5 34.7 33.9 16.9 13.5

WSA Air 71.3 68.5 34.9 27.6 50.8 50.0 25.6 20.1

MOP Air 100.0 90.0 50.0 35.0 80.0 80.0 40.0 30.0

10T FLA Air 61.1 57.9 28.7 22.9 44.7 43.1 21.3 16.9

WSA Air 81.5 77.9 39.8 31.6 61.0 59.4 30.5 24.1

MOP Air 90.0 90.0 45.0 35.0 80.0 70.0 40.0 30.0

12T FLA Air 66.9 63.7 30.3 23.5 50.5 48.9 22.9 17.5

WSA Air 84.7 81.1 39.8 32.4 64.2 62.6 30.5 24.9

MOP Air 100.0 90.0 45.0 35.0 100.0 80.0 40.0 30.0

14T FLA Air 68.4 65.2 32.4 26.0 52.0 50.4 25.0 20.0

WSA Air 84.7 81.1 39.8 32.4 64.2 62.6 30.5 24.9

MOP Air 100.0 90.0 45.0 35.0 80.0 80.0 40.0 30.0

Water 40.1 37.7 18.8 15.0 23.7 22.9 11.4 9.0
Glycol 43.9 41.5 20.7 16.6 27.5 26.7 13.3 10.6
Remote Condensing 25.2 22.8 11.4 9.2 8.8 8.0 4.0 3.2

Water 55.2 52.4 25.8 21.0 34.7 33.9 16.5 13.5
Glycol 55.2 52.4 25.8 21.0 34.7 33.9 16.5 13.5
Remote Condensing 31.5 28.5 14.3 11.5 11.0 10.0 5.0 4.0

Water 70.0 60.0 30.0 25.0 50.0 50.0 25.0 20.0
Glycol 70.0 60.0 30.0 25.0 50.0 50.0 25.0 20.0
Remote Condensing 35.0 30.0 15.0 15.0 15.0 15.0 15.0 15.0

Water 47.9 45.5 22.7 18.2 31.5 30.7 15.3 12.2
Glycol 53.2 50.8 25.8 20.3 36.8 36.0 18.4 14.3
Remote Condensing 25.2 22.8 11.4 9.2 8.8 8.0 4.0 3.2

Water 71.3 68.5 34.9 27.6 50.8 50.0 25.6 20.1
Glycol 71.3 68.5 34.9 27.6 50.8 50.0 25.6 20.1
Remote Condensing 31.5 28.5 14.3 11.5 11.0 10.0 5.0 4.0

Water 100.0 90.0 50.0 35.0 80.0 80.0 40.0 30.0
Glycol 100.0 90.0 50.0 35.0 80.0 80.0 40.0 30.0
Remote Condensing 35.0 30.0 15.0 15.0 15.0 15.0 15.0 15.0

Water 56.5 53.3 26.3 21.1 40.1 38.5 18.9 15.1
Glycol 64.1 60.9 30.1 24.1 47.7 46.1 22.7 18.1
Remote Condensing 34.0 30.8 15.4 12.4 17.6 16.0 8.0 6.4

Water 81.5 77.9 39.8 31.6 61.0 59.4 30.5 24.1
Glycol 81.5 77.9 39.8 31.6 61.0 59.4 30.5 24.1
Remote Condensing 42.5 38.5 19.3 15.5 22.0 20.0 10.0 8.0

Water 90.0 90.0 45.0 35.0 80.0 70.0 40.0 30.0
Glycol 90.0 90.0 45.0 35.0 80.0 70.0 40.0 30.0
Remote Condensing 45.0 40.0 20.0 15.0 25.0 25.0 15.0 15.0

Water 62.7 59.5 27.9 21.7 46.3 44.7 20.5 15.7
Glycol 69.7 66.5 31.9 24.7 53.3 51.7 24.5 18.7
Remote Condensing 34.0 30.8 15.8 12.4 17.6 16.0 8.0 6.4

Water 84.7 81.1 39.8 32.4 64.2 62.6 30.5 24.9
Glycol 84.7 81.1 39.8 32.4 64.2 62.6 30.5 24.9
Remote Condensing 42.5 38.5 19.3 15.5 22.0 20.0 10.0 8.0

Water 100.0 90.0 45.0 35.0 100.0 80.0 40.0 30.0
Glycol 100.0 90.0 45.0 35.0 100.0 80.0 40.0 30.0
Remote Condensing 45.0 40.0 20.0 15.0 25.0 25.0 15.0 15.0

Water 63.8 60.6 30.2 24.0 47.4 45.8 22.8 18.0
Glycol 71.4 68.2 34.0 27.2 55.0 53.4 26.6 21.2
Remote Condensing 34.0 30.8 15.4 12.4 17.6 16.0 8.0 6.4

Water 84.7 81.1 39.8 32.4 64.2 62.6 30.5 24.9
Glycol 84.7 81.1 39.8 32.4 64.2 62.6 30.5 24.9
Remote Condensing 42.5 38.5 19.3 15.5 22.0 20.0 10.0 8.0

Water 100.0 90.0 45.0 35.0 80.0 80.0 40.0 30.0
Glycol 100.0 90.0 45.0 35.0 80.0 80.0 40.0 30.0
Remote Condensing 45.0 40.0 20.0 15.0 25.0 25.0 15.0 15.0

FLA= Full Load Amperes MOP=Maximum Overcurrent Protection WSA=Wire Size Amperes

*Values are calculated based on 3– phase power

APC NetworkAIR AFX Series: Electrical Data 27

Steam/hot water/or no-reheat—18 –28 ton

HUMIDIFIER Electric Stea m or None

VO LTAG E 208 230 460 575 208 230 460 575

18T FLA Air 85.7 82.5 41.1 32.9 69.3 67.7 33.7 26.9

Water 79.3 76.1 37.9 30.3 62.9 61.3 30.5 24.3

Glycol 89.9 86.7 44.1 34.5 73.5 71.9 36.7 28.5

Remote Condensing 34.0 30.8 15.4 12.4 17.6 16.0 8.0 6.4

WSA Air 113.7 110.1 56.2 44.3 93.2 91.6 46.9 36.8

Water 113.7 110.1 56.2 44.3 93.2 91.6 46.9 36.8

Glycol 113.7 110.1 56.2 44.3 93.2 91.6 46.9 36.8

Remote Condensing 42.5 38.5 19.3 15.5 22.0 20.0 10.0 8.0

MOP Air 125.0 125.0 70.0 50.0 125.0 125.0 60.0 50.0

Water 125.0 125.0 70.0 50.0 125.0 125.0 60.0 50.0

Glycol 125.0 125.0 70.0 50.0 125.0 125.0 60.0 50.0

Remote Condensing 45.0 40.0 20.0 15.0 25.0 25.0 15.0 15.0

20T FLA Air 104.8 100.4 49.9 39.9 85.8 83.4 41.4 33.0

Water 96.8 92.4 45.9 36.7 77.8 75.4 37.4 29.8

Glycol 110.0 105.6 52.5 41.9 91.0 88.6 44.0 35.0

Remote Condensing 45.4 41.0 20.5 16.5 26.4 24.0 12.0 9.6

WSA Air 144.7 139.8 65.8 49.3 120.9 118.5 55.2 40.7

Water 144.7 139.8 65.8 49.3 120.9 118.5 55.2 40.7

Glycol 144.7 139.8 65.8 49.3 120.9 118.5 55.2 40.7

Remote Condensing 56.8 51.3 25.6 20.6 33.0 30.0 15.0 12.0

MOP Air 175.0 175.0 80.0 80.0 150.0 150.0 70.0 50.0

Water 175.0 175.0 80.0 80.0 150.0 150.0 70.0 50.0

Glycol 175.0 175.0 80.0 80.0 150.0 150.0 70.0 50.0

Remote Condensing 50.0 50.0 25.0 20.0 35.0 30.0 15.0 15.0

26T FLA Air 118.9 107.4 53.6 42.8 99.9 90.4 45.1 35.9

Water 110.5 99.8 49.8 39.8 91.5 82.8 41.3 32.9

Glycol 122.4 110.6 55.2 44.1 103.4 93.6 46.7 37.2

Remote Condensing 45.4 41.0 20.5 16.5 26.4 24.0 12.0 9.6

WSA Air 156.1 151.2 66.7 53.8 132.4 130.0 56.1 45.2

Water 156.1 151.2 66.7 53.8 132.4 130.0 56.1 45.2

Glycol 156.1 151.2 66.7 53.8 132.4 130.0 56.1 45.2

Remote Condensing 56.8 51.3 25.6 20.6 33.0 33.0 15.0 12.0

MOP Air 175.0 175.0 80.0 80.0 175.0 175.0 70.0 60.0

Water 175.0 175.0 80.0 80.0 175.0 175.0 70.0 60.0

Glycol 175.0 175.0 100.0 80.0 175.0 175.0 90.0 70.0

Remote Condensing 50.0 50.0 25.0 20.0 35.0 30.0 15.0 15.0

28T FLA Air 115.2 104.1 52.0 41.7 96.2 87.1 43.5 34.8

Water 107.7 97.3 48.6 39.0 88.7 80.3 40.1 32.1

Glycol 117.9 106.5 53.2 42.7 98.9 89.5 44.7 35.8

Remote Condensing 45.4 41.0 20.5 16.5 26.4 24.0 12.0 9.6

WSA Air 156.1 151.2 78.9 63.0 132.4 130.0 68.3 54.4

Water 156.1 151.2 78.9 63.0 132.4 130.0 68.3 54.4

Glycol 156.1 151.2 78.9 63.0 132.4 130.0 68.3 54.4

Remote Condensing 56.8 51.3 25.6 20.6 33.0 30.0 15.0 12.0

MOP Air 175.0 175.0 100.0 100.0 175.0 175.0 90.0 70.0

Water 175.0 175.0 100.0 100.0 175.0 175.0 90.0 70.0

Glycol 175.0 175.0 100.0 100.0 175.0 175.0 90.0 70.0

Remote Condensing 50.0 50.0 25.0 20.0 35.0 30.0 15.0 15.0

FLA= Full Load Amperes MOP=Maximum Overcurrent Protection WSA=Wire Size Amperes

*Values are calculated based on 3– phase power

28 APC NetworkAIR AFX Series: Electrical Data

Indoor centrifugal condenser units

VO LT A GE 208 230 460 575

6T FLA 8.6 8.4 4.2 3.6

WSA/MCA 10.8 10.5 5.3 4.5

MOP 15.0 15.0 15.0 15.0

8T FLA 8.6 8.4 4.2 3.6

WSA/MCA 10.8 10.5 5.3 4.5

MOP 15.0 15.0 15.0 15.0

10T FLA 17.2 16.8 8.4 7.2

WSA/MCA 19.4 18.9 9.5 8.1

MOP 25.0 25.0 15.0 15.0

12T FLA 17.2 16.8 8.4 7.2

WSA/MCA 19.4 18.9 9.5 8.1

MOP 25.0 25.0 15.0 15.0

14T FLA 17.2 16.8 8.4 7.2

WSA/MCA 19.4 18.9 9.5 8.1

MOP 25.0 25.0 15.0 15.0

18T FLA 17.2 16.8 8.4 7.2

WSA/MCA 19.4 18.9 9.5 8.1

MOP 25.0 25.0 15.0 15.0

20T FLA 25.8 25.2 12.6 10.8

WSA/MCA 28.0 27.3 13.6 11.7

MOP 35.0 35.0 15.0 15.0

26T FLA 25.8 25.2 12.6 10.8

WSA/MCA 28.0 27.3 13.6 11.7

MOP 35.0 35.0 15.0 15.0

28T FLA 25.8 25.2 12.6 10.8

WSA/MCA 28.0 27.3 13.6 11.7

MOP 35.0 35.0 15.0 15.0

FLA= Full Load Amperes MOP= Maximum Overcurrent Protection WSA/MCA=Wire Size Amperes/Minimum Circuit Amperes

*Values are calculated based on 3–phase power

APC NetworkAIR AFX Series: Electrical Data 29

Guide Specifications

General Summary. The environmental control system shall be designed specifically

for precision temperature and humidity control applications. It will
automatically monitor and control heating, cooling, humidifying,
dehumidifying, and filtering functions for the conditioned space. The system
shall be built to the highest quality engineering and manufacturing standards,
and shall be subject to a functional test prior to leaving the factory. The
system shall be floor mounted and configured for up/down discharge of
conditioned airflow, with draw-through air pattern, to provide uniform air
distribution over the entire face of the coil.

Design requirements. The system shall be as described in the following

specification as manufactured by APC.

Model AFX _____________________________________.

Total cooling capacity: ________________ MBH (kW).

Sensible cooling capacity: ________________ MBH (kW).

Return air temperature: ________________ ° F (° C).

Dry bulb: ________________ ° F (° C).

Wet bulb: ________________% RH.

Air quantity: ________________ CFM (L/s) at 0.5" (125 Pa) external static
pressure.

Humidifier capacity: ________________ kW.

Electrical supply: __________ V, ______ ph, 60 Hz.

Submittals. Submittals shall be provided with the proposal and shall

include: capacity data, electrical data physical data, electrical connection
drawing and piping connection drawing.

Quality assurance. The system shall be completely factory-tested prior to

shipment. Testing shall include, but not be limited to: Completely charging
the system with refrigerant to ensure pressurized integrity, “Hi-Pot” test, and
controls calibration and settings. Each system shall ship with a completed test
report to verify completion of factory testing procedure. The system shall be
NTRL listed.

Product Microprocessor. The microprocessor controller shall provide total

environmental control. The system, based on the main controller, shall offer
up to eight analog inputs, two analog outputs, twelve digital inputs and
thirteen digital outputs. The operator interface shall provide a 4-line, 80­character backlit LCD display. User-friendly menu structure along with

APC NetworkAIR AFX Series: Guide Specifications 31

clearly defined prompts shall allow the operator to easily move about the
program and monitor the following functions and alarm conditions.

• Status: Complete status monitoring shall be provided within the status
menu of the microprocessor controller, and shall include the following
information: current temperature, current humidity, temperature
setpoint, humidity setpoint, cooling status, heating status, humidification
status, and dehumidification status.

• Alarms: Quick access to any alarm condition shall be facilitated
through the menu structure. Presence of a new alarm shall sound an
audible alarm. A red alarm LED on the display panel shall remain
illuminated until such time that all alarms have been cleared. Alarm
annunciation shall include: loss of air, clogged filter, high head pressure,
low suction pressure, high temperature, low temperature, high humidity,
low humidity. The temperature and humidity alarm setpoints are user
adjustable.

• Setpoint: The microprocessor controller shall provide independent
setpoints for heating, cooling, humidification, and dehumidification.
Automatic setpoint cross-over protection shall prevent the setting of the
heat setpoint above the cool setpoint, and the humidify setpoint above
the dehumidify setpoint. Setpoint adjustment shall be capable of being
protected via security code.

• Configuration: Flexibility shall be offered through the use of the
configuration menu. It shall closely match the operating requirements by
changing the configuration settings. The site configuration shall be
stored in the EEPROM and be protected from unauthorized tampering
by the user selectable 4-digit security password in the security menu.
Configuration options shall include: Fahrenheit or Celsius display,
compressor minimum off-time, power-loss restart time-delay, primary­secondary transfer functions, alarm input polarity, alarm enable,
temperature deadbands, humidity deadbands, and small room delay.

• Run time: The major components within the unit (motor, humidifier
and compressor) shall have independent run-timers that monitor and
store the accumulated run-hours on the components. The run timers shall
be provided with operator-adjustable run-time alarms for proper
component maintenance.

• Security: The microprocessor shall have multiple security levels to
prevent unauthorized adjustment of important system parameters. A
user-selectable 4-digit password shall allow setpoint and configuration
changes.

Cabinet and frame. The cabinet and frame shall be constructed from

welded structural steel. Access panels shall be flush with the frame and
insulated with fiberglass 1" (25 mm) in thickness, 1.5lb/ft
density.

The panels are powder coated and lift off for access to the unit. A piping and
electrical access plate shall be provided in the bottom of the unit. All units
require front and left side access, 24" (610 mm) minimum.

Blower system. The unit shall be configured for draw-through air pattern, to

provide uniform air-flow over the entire face of the coil. The blower shall be

32 APC NetworkAIR AFX Series: Guide Specifications

3

(0.7kg/m3) in

double-inlet centrifugal type, with forward-curving blades, dynamically and
statically balanced. Each blower shall be independently driven by a high­efficiency motor. The drive package shall be designed for 200% of the fan
motor horsepower. Minimum bearing life shall be 200,000 L
motor and blower shall be mounted on a common frame which is isolated
from the vibration of the unit frame. Each blower shall discharge conditioned
air into an insulated static-regain duct located within the downflow unit.

hrs. The

10

Electrical. The electrical system shall conform to National Electrical Code

(NEC) requirements. The control voltage shall be 24 VAC, wired in
accordance with NEC Class 1 requirements. The control circuit wire shall not
be smaller than 18-gauge AWG. Each wire shall end with a service loop and
be securely fastened by an approved method. Control wires more than 6"
(150 mm) shall be color-coded or numbered every 3" (80 mm) for ease of
service tracing. All electrically-actuated components shall be easily
accessible from the front of the unit. Each high-voltage unit shall be
individually protected on all three phases. Main power shall be connected to
a circuit breaker mounted on the electrical panel. The compressor and motor
shall have overload and short-circuit protection. The electrical box shall
include all components and controls required for system operation. An
emergency cool-override manual switch shall be provided with provision for
control using a field supplied thermostat.

• Incoming power is __________V, ______ ph, 60 Hz.

Humidifier. The humidifier(s) shall be self-contained steam-generating

type, factory piped and wired, with disposable cylinder and automatic solid­state control circuit.

• Capacity: ____________lb/h (g/s).

Reheat. The reheat elements shall be low watt density resistance type, sized

to offset the sensible cooling capacity in the dehumidification mode and shall
be electrically and thermally protected by Safety Agency approved safeties.

• Reheat capacity shall be __________ MBH, _______ kW,
controlled in ________ (#) steps.

Refrigeration system. Each refrigeration system shall consist of a fully

protected scroll compressor, evaporator coil mounted over an insulated
stainless steel condensate pan, adjustable expansion valve, filter–drier, liquid
line solenoid valve, sight glass, receiver, liquid line isolation valve, low
pressure switch and manual reset high pressure switch.

Cooling coil. The evaporator coil shall use the latest heat-transfer

technology, raised lanced-aluminum fins and rifle-bored copper tubes. Coil
end-supports shall be galvanized steel. To enhance dehumidification, the coil
shall be split into two circuits by a microprocessor-controlled solenoid valve.
An insulated stainless steel drain pan for condensate shall be included.

Air filters. The air filters shall be 30% efficient per ASHRAE Standard

52.1–92, UL Class 2. The full 4" (102 mm) deep, pleated filters shall be
replaceable from the top on downflow units and from the front on upflow
units.

APC NetworkAIR AFX Series: Guide Specifications 33

Individual systems Air-cooled system. The air cooled system shall consist of an evaporator

section including evaporator coil, blower package(s), controls and electrical
section and compressor(s). The condenser section shall be as follows:

• Outdoor propeller fan condenser: The outdoor condenser casing shall
be of aluminum, and all structural supports, coil frame, motor drive
supports, and mounting legs shall be made of galvanized steel. The
condenser shall have copper tubes expanded into aluminum fins.
Headers and connections shall be copper. The coil shall be pressure
tested and sealed for shipment. The condenser motors shall have
permanently lubricated sealed ball bearings, with internal overload
protection, and operate on __________-V, _____ -ph, 60-Hz power.
Motors shall be mounted inside the condenser casing for weather
protection, and shall be wired to a terminal strip in a weather-proof panel
on the unit. The direct drive, aluminum fan blade and painted steel hub
assembly, shall be protected by a heavy-gauge, vinyl-coated, steel-wire
fan guard. On multiple units, each fan section shall be separated by full­width baffles to prevent bypass air. The condenser shall be sized for
_________ ° F (° C) ambient, and condensing temperature controls shall
be fan speed for –20° F (–29° C) winter ambient. Flooded controls for –
40° F (– 40° C) optional.

• Indoor floor-mounted centrifugal fan condenser: The indoor floor
mounted condenser shall be a draw-through design and include quiet
belt-driven double-inlet centrifugal blower(s), and a condenser coil with
copper tubes expanded into aluminum fins. Belt(s) shall be sized for
200% of the system horsepower. All components shall be housed in a
corrosion-resistant, heavy-gauge, steel cabinet to match the evaporator
section in finish and construction, equipment with 1" (25 mm) supply
and return air-duct flanges. The condenser shall be sized for _______ ° F
(° C) ambient with condensing temperature controls for – 40°F (– 40°
C). The condenser section shall be remotely mounted suitable for
___________- V, _______ -ph, 60-Hz power.

• Models with air cooled condensing units: The air-cooled system shall
consist of an evaporator section including evaporator coil, blower
package(s), controls and electrical system. The remote air-cooled
condensing unit, including compressor(s), shall be housed outdoors in a
weather-resistant cabinet that shall allow service access through a
hinged panel. The condenser coil shall have rifled copper tubes and
enhanced aluminum fins. The coil shall be pressure-tested, and sealed
for shipment. The condensing unit shall be equipped with scroll
compressor(s) and crankcase heater(s), service valves, high and low
pressure controls, receiver with fusible plug, liquid shut–off valve and
charging port, liquid line filter–drier, and sight glass. The direct drive,
propeller fan, condensing unit motor(s) shall have permanently
lubricated sealed ball bearing, with internal overload protection, shall
operate on _______ -V,_______ -ph, 60-Hz power, and shall be mounted
inside the unit casing for weather protection. The standard condensing
unit shall be sized for 95° F (35° C) ambient, and controls shall be
flooded suitable for – 20° F (–29° C) winter ambient. Optional controls
for –30° F (–34° C) shall included insulated and heated receiver. The
condensing unit shall be field-wired and-piped to the evaporator section
and shall be suitable for remote outdoor installation.

34 APC NetworkAIR AFX Series: Guide Specifications

Water-and glycol-cooled systems. The water/glycol-cooled systems shall

consist of an evaporator section including evaporator coil, b

contro

ls and electrical section, compressor(s), and a water/glycol-cooled

lower package(s),

condenser section. The condenser shall be stainless steel brazed plate design
and shall be controlled by 2-way (3-way optional) head pressure-regulated
valve(s). Maximum water pressure is 150 psi (1030 kPa).

• Outside heat exchanger (drycooler) for glycol cooled systems only:
The drycooler casing shall be of aluminum, and all structural supports,
coil frame, motor-drive supports, and mounting legs shall be made of
galvanized steel. The drycooler coil shall have copper tubes expanded
into aluminum fins. Headers and connections shall be copper. The coil
shall be pressure-tested and sealed for shipment. The drycooler motors
shall have permanently lubricated, sealed, ball bearings, and internal
overload protection. Motors shall be mounted inside the drycooler
casing for weather protection and wired to a terminal strip in a weather­proof panel on the unit. The direct-drive, aluminum fan blade and
painted steel hub assembly, shall be protected by a heavy-gauge, vinyl­coated, steel-wire fan guard. On multiple fan units, each fan section shall
be separated by full-width baffles to prevent bypass air. The drycooler
shall be sized for 95° F (35° C) ambient, and operate on _______ -V,
______ -ph, 60-Hz power.

• Indoor floor mounted drycooler: The indoor floor-mounted drycooler
shall be a draw-through design and include a quiet belt-driven, double
inlet centrifugal blower(s), and a condenser coil with copper tubes
expanded into aluminum fins. Belt(s) shall be sized for 200% of the
system horsepower. All components shall be housed in a corrosion­resistant, heavy-gauge, steel cabinet to match the evaporator section in
finish and construction, equipped with 1" (25 mm) supply and return air
duct flanges. The drycooler section shall be sized _________° F (° C)
ambient. The drycooler section shall be remotely mounted suitable for
__________ -V, ______ -ph, 60-Hz power.

• Single pump package for glycol cooled systems only: The pump
package shall be comprised of a centrifugal pump in a vented enclosure
with pump starter, separate drycooler fan and pump circuit breakers,
Aquastat, and fan cycling contractor(s) to control the fluid temperature.
The controls shall be mounted in a weather-tight box. An expansion tank
and Airtrol fitting shall be supplied for field installation. The pump size
shall be sized for ______ GPM (L/s) at ________ ft (m) external head,
and operate on _______-V, ______ -ph, 60-Hz power.

• Dual pump package for glycol cooled system only: The dual pump
package shall consist of two centrifugal pumps in an enclosure. Pump
starters, automatic pump switch-over controls, lead-lag pump selector
switch, separate drycooler fan and pump circuit breakers, aquastat, and
fan cycling contractor to control the fluid temperature shall be mounted
in a separate weather-tight box. An expansion tank and airtrol fitting
shall be supplied for field installation. Each pump shall be sized for
______GPM(L/s) at ______ft (m) external head, and operate on
______-V, ______ -ph, 60-Hz power.

APC NetworkAIR AFX Series: Guide Specifications 35

Options Smoke detector(s). Smoke detector(s) shall be factory-installed in the

return air to sense concentrations of smoke and send a signal to the
microprocessor to shut down the unit and activate a visual and audible alarm.

Firestat. A firestat shall be factory-installed in the return air to sense heat

and send a signal to the microprocessor shutting down the unit and activating
a visual and audible alarm.

Water detector(s). Water detector(s) shall be factory-wired and shipped in

the bottom of the unit to sense water and send a signal to the microprocessor,
giving the operator possible alarm indications options for shutdown. The
water detector has a 15 ft (5 m) cable for mounting in the subfloor.

Remote sensor(s). The temperature and humidity sensors shall be shipped

loose in a 2" × 4" × 1.5" (51 mm × 102 mm × 38 mm) box and 50 ft (15 m) of
cable supplied for connection to the unit mounted controller.

Remote shutdown. A relay shall be factory installed in the unit with a two

pin terminal block to be field wired to a ______(24, 120, or 220 VAC) signal
which will shut down the unit control circuit when the signal is received.

Essential/non-essential lockout. An essential/non-essential lockout relay

shall be factory-installed and wired to a two-pin terminal block to prevent
operation of reheat or humidifier operation when a ______ (24, 120, or 220
VAC) signal is received.

Floorstand. An adjustable floorstand fabricated form heavy gauge steel

shall be provided. The height shall be adjustable from 6” to 36” (115 mm to
915 mm) on Upflow units and 12” to 36” (230 mm to 915 mm) on Downflow
units. Pedestals and vibration pads shall be included. Each pedestal shall be a
3/4" (19 mm) threaded rod, capable of a 2000-lb. (910 kg) vertical load. Zone
4 seismic floorstands shall ship loose and shall be _______ in (mm) high, up
to 36" (915 mm).

Air Deflector. A 90° air deflector shall ship loose and shall be _______ in.

(mm) high.

Top-discharge plenum. A top-discharge plenum shall be supplied with a

gasket material for mounting to an upflow unit. Manually adjustable, double­deflecting grilles shall be provided on 3 or 4 sides. A combination of sound
lining and insulation material shall be used. Plenum height shall be 20" in
(508 mm) or 24" (610 mm).

Duct flange. A 1" (25 mm) duct flange shall be factory-installed on the top

of the upflow unit at the blower outlet.

Redundant group control. ________ (up to 6) units shall be capable of

being connected together to form a redundant group. The master
microprocessor controller shall monitor the status of the slave
microprocessor controllers and determine—based on run time alarm
conditions and local requirements, which the units in the redundant group
shall run.

Remote display panel. A remote microprocessor control display with

keypad shall be shipped loose in a 12" × 8" × 3"
(300 mm × 200 mm × 80 mm) box and 50 ft (15 m) of cable supplied for
connection to the units’ microprocessor logic board.

36 APC NetworkAIR AFX Series: Guide Specifications

Monitoring system. The PC-based Supervisor System shall be shipped

loose for single-terminal monitoring and control of up to 120 units. The
program shall be run through Windows® and shall have status screens for
individual unit conditions, mode of operation and alarms. The System shall
graphically present temperature and relative humidity over time.
Temperature, relative humidity, alarm history, etc. shall be recorded for
future reference.

Environmental monitoring unit. An “EMU” shall ship loose complete

with one 12' (305 mm) probe and network connection.

Hot water reheat. The unit shall be supplied with factory installed copper

tube, aluminum fin, hot water reheat coil in place of electrical heater
elements. Capacity shall be ______ MBH (kW) with ______ GPM (L/s) of
_______ ° F (° C) entering hot water temperature. Hot water shall be
controlled with an on/off solenoid valve.

Steam re heat. The unit shall be supplied with a factory-installed copper

tube, aluminum-fin-reheat steam-coil in place of electrical heater elements.
Capacity shall be _______MBH (kW) with 5 psi (35 kPa) of saturated steam.
Steam shall be controlled with an on/off solenoid valve.

Hot gas reheat. The unit shall be supplied with a factory-installed copper

tube and aluminum fin hot gas reheat coil, in place of electrical heater
elements. Air-cooled systems using hot gas reheat shall also include flooded
condenser pressure controls. This is not available with remote-condensing
units.

Premium efficiency motor(s). Each motor shall have a premium

efficiency of no less than _______% per NEMA MG1-12.55.

High efficiency filter(s). Filters shall be_______% efficient per ASHRAE

Standard 52.1-92, UL Class2. The full 4" (102 mm) deep, pleated filters shall
be replaceable from the top on downflow units and from the front on upflow
units.

Prefilter(s). Replaceable 1" (25 mm) thick 25–30% efficient filter(s) shall

be installed upstream of the final filters to lengthen service life.

Condensate pump, factory installed . A factory installed and wired

condensate pump shall pump 36 gal/h (0.06 L/s) at 15' (4.6 m) head.

Condensate pump, ship loose. A condensate pump shall ship loose for

field installation and wiring. Wiring shall be 120 VAC plug-in type. A check
valve is also shipped loose. It shall have a capacity of 60 gal/h (0.06 L/s) at
15 ft (4.6 m) head.

350 PSI water regulating valves. The condensing temperature shall be

automatically controlled by 2-way (3-way) 350 psi (2400 kPa) water
regulating valve(s).

Flared connections for filter-drier. Flared connections shall be factory-

installed on either side of the filter-drier to allow easy replacement.

Hot gas bypass. The unit shall be supplied with a factory installed hot gas

bypass system to maintain efficient compressor operation during periods of
low load. The valve shall automatically control the amount of hot gas
bypassed to maintain the proper system capacity.

APC NetworkAIR AFX Series: Guide Specifications 37

Dimensional Data

Downflow—6–8 ton

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Dimensional Data 39

Downflow—10–18 ton

*All dimensions in inches (mm)

40 APC NetworkAIR AFX Series: Dimensional Data

Downflow—20–28 ton

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Dimensional Data 41

Upflow front-return—6–8 ton

*All dimensions in inches (mm)

42 APC NetworkAIR AFX Series: Dimensional Data

Upflow front-return—10–18 ton

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Dimensional Data 43

Upflow front-return—20–28 ton

*All dimensions in inches (mm)

44 APC NetworkAIR AFX Series: Dimensional Data

Upflow rear-return—6–8 ton

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Dimensional Data 45

Upflow rear-return—10–18 ton

*All dimensions in inches (mm)

46 APC NetworkAIR AFX Series: Dimensional Data

Upflow rear-return—20–28 ton

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Dimensional Data 47

Indoor rear-discharge centrifugal condenser—6–8 ton

*All dimensions in inches (mm)

48 APC NetworkAIR AFX Series: Dimensional Data

Indoor rear-discharge centrifugal condenser—10–18 ton

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Dimensional Data 49

Indoor rear-discharge centrifugal condenser—20–28 ton

*All dimensions in inches (mm)

50 APC NetworkAIR AFX Series: Dimensional Data

Indoor top-discharge centrifugal condenser—6–8 ton

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Dimensional Data 51

Indoor top-discharge centrifugal condenser—10 –18 ton

*All dimensions in inches (mm)

52 APC NetworkAIR AFX Series: Dimensional Data

Indoor top-discharge centrifugal condenser—20 –28 ton

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Dimensional Data 53

Air-Cooled Condensers and Drycoolers

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APC NetworkAIR AFX Series: Air-Cooled Condensers and Drycoolers 55

Air-cooled condenser—physical data

MODEL TE M P. AIR QUANTITY FAN CONNECTION WE IGHT

TONNAGE AMBIENT CFM L/s QUANTITY HOT GAS LIQUID Lbs Kg

6 ton 95° F 6,450 3044 1 1-1/8" 7/8" 260 118

105° F 6,450 3044 1 1-1/8" 7/8" 260 118

115° F 10,100 4766 2 1-1/8" 7/8" 450 204

8 ton 95° F 10,100 4766 2 1-1/8" 7/8" 450 204

105° F 10,100 4766 2 1-1/8" 7/8" 450 204

115° F 12,400 5852 2 1-1/8" 7/8" 470 213

10 ton 95° F 12,400 5852 2 1-1/8" 7/8" 470 213

105° F 12,400 5852 2 1-1/8" 7/8" 470 213

115° F 13,700 6465 2 1-1/8" 7/8" 510 231

12 ton 95° F 13,700 6465 2 1-1/8" 7/8" 510 231

105° F 13,700 6465 2 1-1/8" 7/8" 510 231

115° F 12,900 6088 2 1-3/8" 1-1/8" 530 240

14 ton 95° F 12,900 6088 2 1-3/8" 1-1/8" 530 240

105° F 12,900 6088 2 1-3/8" 1-1/8" 530 240

115° F 20,500 9674 3 1-3/8" 1-1/8" 550 249

18 ton 95° F 20,500 9674 3 1-3/8" 1-1/8" 550 249

105° F 20,500 9674 3 1-3/8" 1-1/8" 550 249

115° F 19,900 9391 3 1-3/8" 1-1/8" 580 263

20 ton 95° F 19,900 9391 3 1-3/8" 1-1/8" 580 263

105° F 19,900 9391 3 1-3/8" 1-1/8" 580 263

115° F 20,700 9768 2 1-5/8" 1-5/8" 880 400

26 ton 95° F 20,700 9768 2 1-5/8" 1-5/8" 880 400

105° F 20,700 9768 2 1-5/8" 1-5/8" 880 400

115° F 34,800 16,422 3 2-1/8" 2-1/8" 1,190 540

28 ton 95° F 34,800 16,422 3 2-1/8" 2-1/8" 1,190 540

105° F 34,800 16,422 3 2-1/8" 2-1/8" 1,190 540

115° F 32,900 15,526 3 2-1/8" 2-1/8" 1,210 550

56 APC NetworkAIR AFX Series: Air-Cooled Condensers and Drycoolers

Air-cooled condenser—electrical data

MODEL TEM P . 208-230/1/60 208-230/3/60 460/3/60 575/3/60

TONNAGE AMBIENT FLA MCA MOP FLA MCA MOP FLA MCA MOP FLA MCA MOP

6 ton 95° F 4.8 10.8 20 N/A N/A N/A 2.4 5.4 15 2.0 4.5 15

105° F 4.8 10.8 20 N/A N/A N/A 2.4 5.4 15 2.0 4.5 15

115° F 8.2 14.2 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

8 ton 95° F 8.2 14.2 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

105° F 8.2 14.2 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

115° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

10 ton 95° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

105° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

115° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

12 ton 95° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

105° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

115° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

14 ton 95° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

105° F 8.7 14.7 20 7.4 13.4 20 3.7 6.7 15 3.0 5.5 15

115° F 12.6 18.6 25 10.0 16.0 20 5.0 8.0 15 3.9 6.4 15

18 ton 95° F 12.6 18.6 25 10.0 16.0 20 5.0 8.0 15 3.9 6.4 15

105° F 12.6 18.6 25 10.0 16.0 20 5.0 8.0 15 3.9 6.4 15

115° F 12.6 18.6 25 10.0 16.0 20 5.0 8.0 15 3.9 6.4 15

20 ton 95° F 12.6 18.6 25 10.0 16.0 20 5.0 8.0 15 3.9 6.4 15

105° F 12.6 18.6 25 10.0 16.0 20 5.0 8.0 15 3.9 6.4 15

115° F N/A N/A N/A 11.8 17.8 25 5.9 8.9 15 4.4 6.9 15

26 ton 95° F N/A N/A N/A 11.8 17.8 25 5.9 8.9 15 4.4 6.9 15

105° F N/A N/A N/A 11.8 17.8 25 5.9 8.9 15 4.4 6.9 15

115° F N/A N/A N/A 18.8 24.8 35 9.4 12.4 15 6.8 9.3 15

28 ton 95° F N/A N/A N/A 18.8 24.8 35 9.4 12.4 15 6.8 9.3 15

105° F N/A N/A N/A 18.8 24.8 35 9.4 12.4 15 6.8 9.3 15

115° F N/A N/A N/A 18.8 24.8 35 9.4 12.4 15 6.8 9.3 15

APC NetworkAIR AFX Series: Air-Cooled Condensers and Drycoolers 57

Single-fan air-cooled condenser—6 ton

APC UNIT TEMP FAN QTY A B

6 ton

6 ton

95° F

(35° C)

105° F

(41° C)

1

1

49.75

(1264)

49.75

(1264)

40.00

(1016)

40.00

(1016)

*All dimensions in inches (mm)

58 APC NetworkAIR AFX Series: Air-Cooled Condensers and Drycoolers

Dual-fan air-cooled condenser—6–14 ton

APC UNIT TEMP FAN QTY A B

6 ton

8 ton

8 ton

8 ton

10 ton

10 ton

10 ton

12 ton

12 ton

12 ton

14 ton

14 ton

115° F

(46° C)

95° F

(35° C)

105° F

(41° C)

115° F

(46° C)

95° F

(35° C)

105° F

(41° C)

115° F

(46° C)

95° F

(35° C)

105° F

(41° C)

115° F
(46°C)

95° F

(35° C)

105° F

(41° C)

2

2

2

2

2

2

2

2

2

2

2

2

69.75

(1772)

69.75

(1772)

69.75

(1772)

69.75

(1772)

69.75

(1772)

69.75

(1772)

89.75

(2280)

89.75

(2280)

89.75

(2280)

89.75

(2280)

89.75

(2280)

89.75

(2280)

60.00

(1524)

60.00

(1524)

60.00

(1524)

60.00

(1524)

60.00

(1524)

60.00

(1524)

80.00

(2032)

80.00

(2032)

80.00

(2032)

80.00

(2032)

80.00

(2032)

80.00

(2032)

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Air-Cooled Condensers and Drycoolers 59

Triple-fan air-cooled condenser—14–20 ton

APC UNIT TEMP FAN QTY A B

14 ton

18 ton

18 ton

18 ton

20 ton

20 ton

115° F

(46° C)

95° F

(35° C)

105° F

(41° C)

115° F

(46° C)

95° F

(35° C)

105° F

(41° C)

3

3

3

3

3

3

129.75
(3296)

129.75
(3296)

129.75
(3296)

129.75
(3296)

129.75
(3296)

129.75
(3296)

120.00
(3048)

120.00
(3048)

120.00
(3048)

120.00
(3048)

120.00
(3048)

120.00
(3048)

*All dimensions in inches (mm)

60 APC NetworkAIR AFX Series: Air-Cooled Condensers and Drycoolers

Dual-fan air-cooled condenser—20–26 ton

APC UNIT TEMP FAN QTY

20 ton

26 ton

26 ton

115° F

(46° C)

95° F

(35° C)

105° F

(41° C)

2

2

2

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Air-Cooled Condensers and Drycoolers 61

Triple-fan air-cooled condenser—26–28 ton

APC UNIT TEMP FA N Q T Y

26 ton

28 ton

28 ton

28 ton

115° F

(46° C)

95° F

(35° C)

105° F

(41° C)

115° F

(46° C)

3

3

3

3

*All dimensions in inches (mm)

62 APC NetworkAIR AFX Series: Air-Cooled Condensers and Drycoolers

Drycooler

Glycol cooled drycooler—physical data

MODEL TE MP . AIR QUANTITY FAN CONNECTION WEIGHT GLYCOL VOLUME

TONNAGE AMBIENT CFM L/s QUANTITY HOT GAS LIQUID Lbs Kg Gal L

6 ton 95° F 10,100 4766 2 1-3/8" 1-3/8" 450 204 4.9 18.1

8 ton 95° F 12,900 6088 2 1-3/8" 1-3/8" 530 240 9.1 33.7

10 ton 95° F 20,500 9674 3 1-3/8" 1-3/8" 550 250 10.2 37.7

12 ton 95° F 20,500 9674 3 1-3/8" 1-3/8" 550 250 10.2 37.7

14 ton 95° F 21,900 10,335 2 2-5/8" 2-5/8" 790 359 9.2 34.8

18 ton 95° F 20,700 9768 2 2-5/8" 2-5/8" 880 400 11.8 43.7

20 ton 95° F 34,800 16,422 3 2-5/8" 2-5/8" 1190 540 13.0 48.1

26 ton 95° F 32,900 15,526 3 2-5/8" 2-5/8" 1210 550 13.0 48.1

28 ton 95° F 32,900 15,526 3 2-5/8" 2-5/8" 1210 550 13.0 48.1

Glycol cooled drycooler—electrical data

MODEL TE MP . 208-230/1/60 208-230/3/60 460/3/60 575/3/60

TONNAGE AMBIENT FLA MCA MOP FLA MCA MOP FLA MCA MOP FLA MCA MOP

6 ton 95° F 6.8 11.1 15 5.2 8.5 15 2.6 4.2 15 1.9 3.1 15

8 ton 95° F 7.8 12.7 20 5.2 8.5 15 2.6 4.2 15 1.9 3.1 15

10 ton 95° F 11.7 16.6 20 7.8 11.1 15 3.9 5.5 15 2.9 4.0 15

12 ton 95° F 11.7 16.6 20 7.8 11.1 15 3.9 5.5 15 2.9 4.0 15

14 ton 95° F N/A N/A N/A 14.0 22.8 35 7.0 11.4 15 4.8 7.8 15

18 ton 95° F N/A N/A N/A 14.0 22.8 35 7.0 11.4 15 4.8 7.8 15

20 ton 95° F N/A N/A N/A 21.0 29.8 40 10.5 14.9 20 7.2 10.2 15

26 ton 95° F N/A N/A N/A 21.0 29.8 40 10.5 14.9 20 7.2 10.2 15

28 ton 95° F N/A N/A N/A 21.0 29.8 40 10.5 14.9 20 7.2 10.2 15

APC NetworkAIR AFX Series: Drycooler 63

Dual-fan fluid cooler—6–8 ton

APC UNIT TEMP FAN QTY A B

6 ton

8 ton

95° F

(35° C)

95° F

(35° C)

2

2

69.5

(1765)

69.75

(1772)

60.00

(1524)

80.00

(2032)

*All dimensions in inches (mm)

64 APC NetworkAIR AFX Series: Drycooler

Triple-fan fluid cooler—10–12 ton

APC UNIT TEMP FAN QTY A B

10 ton

12 ton

95° F

(35° C)

95° F

(35° C)

3

3

129.75
(3296)

129.75
(3296)

120.00
(3048)

120.00
(3048)

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Drycooler 65

Dual-fan fluid cooler—14–18 ton

APC UNIT TEMP FAN QTY

14 ton

18 ton

95° F

(35° C)

95° F

(35° C)

2

2

*All dimensions in inches (mm)

66 APC NetworkAIR AFX Series: Drycooler

Triple-fan fluid cooler—20–28 ton

APC UNIT TEMP FAN QTY

20 ton

26 ton

28 ton

95° F

(35° C)

95° F

(35° C)

95° F

(35° C)

3

3

3

*All dimensions in inches (mm)

APC NetworkAIR AFX Series: Drycooler 67

Pump Specifications

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Pump electrical data

HP (kW) 1/2" (.37) 3/4" (.56) 1" (.75) 1.5" (1.1) 2" (1.5)

VOLTAGE FLA MCA FLA MCA FLA MCA FLA MCA FLA MCA

208/1/60 5.4 6.8 7.6 9.5 8.8 11.0 11.0 13.8 13.2 16.5

230/1/60 4.9 6.1 6.9 8.6 8.0 10.0 10.0 12.5 12.0 15.0

208/3/60 2.4 3.0 3.5 4.4 4.6 5.8 6.6 8.3 7.5 9.4

230/3/60 2.2 2.8 3.2 4.0 4.2 5.3 6.0 7.5 6.8 8.5

460/3/60 1.1 1.4 1.6 2.0 2.1 2.6 3.0 3.8 3.4 4.3

575/3/60 0.9 1.1 1.3 1.6 1.7 2.1 2.4 3.0 2.7 3.4

FLA= Full Load Amperes MCA=Minimum Circuit Amperes

*Values are calculated based on 3-phase power

APC NetworkAIR AFX Series: Pump Specifications 69

Guidelines for Installation

The AFX series provides reliable, accurate temperature and humidity control
of computer rooms, laboratories, and other environments that require close
tolerance control. The unit incorporates the latest system design innovations
to provide you with optimum efficiency, reliability, and accuracy of control.

The AFX system will provide years of trouble-free service, if it is installed
and maintained by technically qualified personnel.

Room preparation During the design of the room, consideration should be given to the

following factors: ease of entry for the system, floor-loading factors, and
accessibility of piping and wiring.

The room must be sealed with a vapor barrier to minimize migration of
moisture. Polyethylene film (plastic sheeting) is a good vapor barrier for
ceiling and wall applications. Rubber- or plastic-based paints should be
applied to concrete floors and walls. The room should be thoroughly
insulated to minimize thermal loads and make-up air (if required) should be
preconditioned to reduce additional temperature, filtration, and moisture
loads.

A room using a raised-floor plenum for air distribution should have at least
9" (300 mm) of clear space between the false floor and sub-floor for a
finished floor height of 12" (380 mm). Pay special attention to the location of
pipe chases, electrical conduits and other obstructions under the floor. These
objects can block air circulation and cause loss of air pressure, thus reducing
system efficiency and causing hot spots in your room.

Minimum clear space of 18" (460 mm) is to be provided for units over 15
tons (53 kW).

APC should be notified before installation if the unit is incorrect for the
application.

Unit location The location of the unit is important for efficient and balanced environmental

control in your room. The air conditioner should be located as close as
possible to the largest heat load. In rooms having a high aspect ratio, mount
the unit along the longest wall to ensure even air distribution. If improperly
installed, erratic control or mechanical failure can and will result if the unit
does not obtain proper air volume and distribution.

Service access At least 24" (610 mm) of clear space must be left in front of the unit for

routine service (belts, filters, humidifier). We strongly recommend
approximately 34" (860 mm) clearance in front of the unit.

Receiving the unit Your AFX unit has been completely tested and inspected prior to shipment.

To ensure that you have received the unit in excellent condition, perform a
careful inspection of the crating and the unit immediately upon receipt.

APC NetworkAIR AFX Series: Guidelines for Installation 71

Verify that all parts ordered were received as specified and that the unit is the
correct size and voltage necessary to fulfill your environmental control
needs. Report any damage discovered to the freight carrier. If necessary,
contact the APC field service department for help in repairing or replacing
damaged parts. While APC is not responsible for damage incurred in transit,
we want to make sure that you have no undue delays in your system start-up.

Rigging The unit is manufactured with a formed steel frame for maximum strength

and unit integrity. However, as with all electrical and mechanical equipment,
you must take care with proper rigging of your unit.

When using a forklift to move the unit, use the shipping skid to protect the
bottom of the unit. When using chains, cables or rope to lift the unit, use
spreader bars to prevent damage to the finished panel.

Floorstand Install a threaded pedestal into each leg of the floorstand. Use the washer and

nut on each panel to tighten against the floorstand leg.

Utility connections All connections are made through the bottom left of the unit (the left side of

upflow discharge units) for ease of service connections. Refer to the
installation manual for pipe sizes and specific locations for your unit.

Power unit The AFX unit uses 3-phase power for operation. Bring the service cable

through the bottom left of the unit and through the bulkhead hole into the
electrical box to the circuit breaker provided on he left side of the electrical
box. The ground lug is located near the 3-phase high-voltage connector. THE

UNIT MUST BE UTILITY GROUNDED OR THE WARRANTY IS
VOID.

Humidifier connections

The humidifier inlet connection is in the bottom of the mechanical section. A
1/4" compression connection is supplied with the unit.

Condensate drain Condensate from the evaporator pan and discharge from the humidifier

flushing system drain through a 7/8" ID drain trap in the bottom of the unit.

Water supply to humidifier

1. The humidifier fill valve orifice is sized for supply water pressure from
30 PSIG (210 kPa) to 85 PSIG (590 kPa).

2. For cases above 90 PSIG (630 kPa), install a pressure-reducing valve in
the water feed line to the unit.

3. With extremely dirty or muddy water sources, proper filtration is
required on the units incoming water line.

4. DO NOT use softened water with the humidifier. Softened water is too conductive.

5. DO NOT use completely demineralized water with the humidifier. The
minerals allow the electrode principle to work.

6. DO NOT use a hot water source. Doing so will cause deposits that will
eventually block the fill valve orifices.

72 APC NetworkAIR AFX Series: Guidelines for Installation

7. Water supplies with high conductivity (above 700 µΩ) must be precon­ditioned for proper operation and longevity of the humidifier.

Water su pply A 16- to 20-mesh strainer must be installed in the water supply to the water

and glycol units to prevent clogging of brazed plate condenser. This is a field
item.

OTE: Because of an ongoing program dedicated to product improvement,

N

specifications are subject to revisions without notice. APC assumes no
responsibility, and disclaims all liability for damages resulting from use of
this information or for any errors or omissions.

APC NetworkAIR AFX Series: Guidelines for Installation 73



APC Worldwide Customer Support

Customer support for this or any other APC product is available at no charge in any of the following ways:

• Visit the APC Web site to find answers to frequently asked questions (FAQs), to access documents in the APC
Knowledge Base, and to submit customer support requests.

– www.apc.com

Connect to localized APC Web sites for specific countries, each of which provides customer support informa­tion.

– www.apc.com/support

Global support with FAQs, knowledge base, and e-support.

• Contact an APC Customer Support center by telephone or e-mail.
– Regional centers:

(Corporate Headquarters)

.

APC Headquarters
(U.S. and Canada)

(1) [phone] (toll free)

Latin America (1) [phone] (United States)

Europe, Middle East,
Africa

(353) (91) 702020 (Ireland)

Japan [phone] Guidance 3

– Local, country-specific centers: go to www.apc.com/support/contact for contact information.

• Contact the APC representative or other distributor from whom you purchased your APC product for information

on how to obtain local customer support.

Entire contents copyright © 2001 American Power Conversion. All rights reserved.

Reproduction in whole or in part without permission is prohibited. APC is a registered

trademark of American Power Conversion Corporation. All other trademarks,

product names, and corporate names are the property of their respective

owners and are used for informational purposes only.

990-0828A 1/2002

75