EDPAC R407C Data Manual

Close Control

Small Systems Range

Engineering Data Manual 50/60Hz

R407C

2

Index

Description

Page

EDPAC Company Profile 3

This Product Range 3

Other EDPAC Close Control Product Ranges 3

Equipment Nomenclature 4

Indoor Units - Dimensions and Weights 4

Air Cooled Condensers - Dimensions and Weights 5

Guide Specifications 6

General Engineering Details 11

Air Cooled Unit Schematic 12

Chilled Water Unit Schematic 13

Air Cooled Units - Cooling Capacities 50Hz 14

Air Cooled Units - Cooling Capacities 60Hz 14

Chilled Water Units - Cooling Capacities 50/60Hz 15

Electrical Details - Air Cooled Units, 400V/50Hz 16

Electrical Details - Air Cooled Units, 220V/60Hz 16

Electrical Details - Air Cooled Units, 380V/60Hz 17

Electrical Details - Air Cooled Units, 460V/60Hz 17

Electrical Details - Chilled Water Units, 400V/50Hz 18

Electrical Details - Chilled Water Units, 220V/60Hz 18

Electrical Details - Chilled Water Units, 380V/60Hz 19

Electrical Details - Chilled Water Units, 460V/60Hz 19

ENGINEERING DATA MANUAL 50/60Hz

Document Reference: E.4.19-01-03-05

While every precaution has been taken to ensure accuracy and completeness in this manual, EDPAC assumes no responsibility and disclaims

all liability for damages resulting from use of this information or for any errors or omissions.

3

HISTORY

Formed in 1968, EDPAC has grown through worldwide distribution to an installed base of over 50,000 units. EDPAC currently services
the markets of Europe, the Americas, the Middle East, and the Far East. As one of the pioneers of Precision Air Conditioning the
EDPAC name has become synonymous with quality and reliability. With its highly skilled and experienced team EDPAC has
established not only a modern manufacturing plant, but also a sophisticated and innovative product development programme. Since
1987 EDPAC International located in Cork Ireland, has controlled the entire activities of the group.

PRODUCT RANGE

EDPAC manufactures a broad range of Precision Air Conditioning equipment for the Computer Room, Telecoms and other critical
Building Services applications. EDPAC systems are designed to provide optimum operating conditions in close control environments.

QUALITY

All suppliers of materials and components used in manufacturing are assessed and qualified by EDPAC. The EDPAC guarantee of
quality is also complimented by rigorous in-factory quality assessment and quality control testing prior to product dispatch. The overall
activity of the factory is customer focused and conforms to the strict norms of IS/ISO9001/EN29001. EDPAC was awarded and has
retained this certificate since 18th March 1992.

THIS PRODUCT RANGE

SMALL SYSTEMS

The Small Systems range comprises 2 module sizes providing nominal capacities of 6, 12 and 18 kW per module. The modules form
the basis of the EDPAC Small Systems concept. Unit selections are based on a single module. Units are available in downflow with
top return and upflow with front return. Cooling media include direct expansion using air and chilled water. The Small Systems Range
Units are equipped with: Scroll Compressors, Electrode Steam Boiler Humidifiers, Stainless Steel Tubular Finned Electric Reheat, EU4
Filtration, Belt Driven forward curved Centrifugal Fans and R407C Refrigerant. BMS interface cards are available for all of the most
commonly-used protocols including but not limited to MODBUS, BACnet, LON, JCI METASYS & they all can be integrated into
most BMS systems by RS 485 or over TCP/IP. Cooling media available is air cooled direct expansion only. There is an option for a
dual cooling version with the addition of a chilled water coil.

ASSOCIATED PRODUCT RANGES

CLOSE CONTROL MODULAR UNIT RANGE

The Close Control Modular range is comprised of 4 module sizes providing nominal capacities of 10, 15, 20, 25, 30, 35 & 40 kW per
module. These modules form the basis of the EDPAC modular concept. Unit selections can be based on a single module for a single
circuit system or any combination of 2 modules to give a twin circuit or Duplex system. The Duplex configuration is advantageous as
both modules can be positioned at different locations within the room.

CLOSE CONTROL AIR COOLED TWIN CIRCUIT UNIT RANGE

The Close Control Twin Circuit range comprises 4 sizes providing nominal capacities of 30, 40, 50, 60, 70, 80 & 100 in 10kW
increments. Units are twin circuit in a single frame and are available in upflow and downflow configurations. Cooling media available
is air cooled direct expansion only. There is an option for a dual cooling version with the addition of a chilled water coil.

EC PLUG FAN UNIT RANGE

The EC Plug Fan range comprises of 7 sizes providing nominal capacities of 20-200kW. All units are fitted with the EC plug fans and
cooling media include direct expansion using air and chilled water.

TELECOM SYSTEM UNIT RANGE

The Telecom System Unit range comprises of split DX units consisting of an indoor evaporator and outdoor condensing unit. There are
3 unit sizes giving capacities of 5 to 20kW. The indoor unit can be wall or ceiling mounted optimising available room space. Units are
also available with freecooling & are ideally suited for small telecom sites, base stations and electrical rooms.

SELF CONTAINED UNIT RANGE

The Self Contained Unit range comprises of wall mounted self-contained DX units. There are 3 unit sizes giving capacities of 5 to
20kW. Units are mounted externally conserving internal floor space. Units are also available with freecooling & are ideally suited for
telecom sites and base stations.

EDPAC COMPANY PROFILE

4

The Small Systems range comprises 2 module sizes providing nominal capacities of 6, 12 and 18 kW. Units are available in downflow
with Top return and upflow with front and rear return options. Cooling media include direct expansion using air or water/glycol and
chilled water. The Small Systems Range Units are equipped with: Scroll Compressors, Electrode Steam Boiler Humidifiers, Stainless
Steel Tubular Finned Electric Reheat, EU4 Filtration, Belt Driven forward curved Centrifugal Fans, R407C Refrigerant and the latest
BES/BMS compatible range of Delta microprocessor controllers.

DIMENSIONS AND WEIGHTS

Dimensions (mm)

Model 06 12 18

Unit W x D 600 x 600 600 x 600 775 x 775
Height 1980 1980 1980

Weight ( kg )

Model 06 12 18

Air Cooled 305 320 340
Chilled Water 250 260 280

EQUIPMENT NOMENCLATURE

D A 12 B S W S EC

NOMINAL CAPACITY

06 = 6 kW

12 = 12 kW

18 = 18 kW

A = AIR

C= CHILLED WATER

D = DOWNFLOW

S = DOWNFLOW
DISPLACEMENT

F = UPFLOW FRONT RETURN

B= UPFLOW BOTTOM

RETURN

R= UPFLOW REAR RETURN

VOLTAGE

B = 380-415/3/50

E = 220/3/60

H = 460/3/60

J = 380/3/60

S = STANDARD SCROLL

COMPRESSOR
X = CHILLED WATER
V= VARIABLE SPEED

COMPRESSOR

E = ECX OPTION

W = WITHOUT ECX

D = DUAL COOLING

S = STANDARD CONTROLS

G = GRAPHIC

CONTROLS

EC = EC FAN OPTION

5

30oC Ambient Selection

Model 06 12 18

Condenser Model x 1 AGS 501A AGS 501A AGS 501B
Condenser Input Power (kW) 0.7 0.7 0.7
Free field SPL @ 10m dBA 43 43 43
Airflow (m3/h) 8250 8250 7850
Dimensions W x D (mm) 1050 x 825 1050 x 825 1050 x 825
Weight (kgs) 39 39 42

35oC Ambient Selection

Model 06 12 18

Condenser Model x 1 AGS 501A AGS 501B AGS 501C
Condenser Input Power (kW) 0.7 0.7 0.7
Free field SPL @ 10m dBA 43 43 43
Airflow (m3/h) 8250 7850 7500
Dimensions W x D (mm) 1050 x 825 1050 x 825 1050 x 825
Weight (kgs) 39 42 47

40oC Ambient Selection

Model 06 12 18

Condenser Model x 1 AGS 501A AGS 501C AGS 502A
Condenser Input Power 0.7 0.7 1.4
Free field SPL @ 10m dBA 43 43 46
Airflow (m3/h) 8250 7500 16500
Dimensions W x D (mm) 1050 x 825 1050 x 825 1950 x 825
Weight (kgs) 39 47 76

45oC Ambient Selection

Model 06 12 18

Condenser Model x 1 AGS 501A AGS 502B AGS 502C
Condenser Input Power (kW) 0.7 1.4 1.4
Free field SPL @ 10m dBA 43 46 46
Airflow (m3/h) 8250 15700 15000
Dimensions W x D (mm) 1050 x 825 1950 x 825 1950 x 825
Weight (kgs) 39 85 93

50oC Ambient Selection

Model 06 12 18

Condenser Model x 1 AGS 501C AGS 502C AGS 503B
Condenser Input Power (kW) 0.7 1.4 2.1
Free field SPL @ 10m dBA 43 46 48
Airflow (m3/h) 7500 15000 23550
Dimensions W x D (mm) 1050 x 825 1950 x 825 2850x825
Weight (kgs) 47 93 123

Notes:

1. Standard Air Cooled Condensers have 4 Pole motors. For 6 Pole & 8 Pole low noise versions, consult factory.

2. All Condensers are shipped with mounting feet. When mounted in a horizontal, Condenser models AGS 501-503 are

850mm high.

CONDENSERS – DIMENSIONS AND WEIGHTS

6

STANDARD FEATURES

Cabinet

The cabinet frames shall be constructed of formed 2.0 mm
Zintec steel sections. Paint finish is Epoxy Powder Coated with
an “Orange Peel” textured finish. Interior panels to be
manufactured from galvanised steel in all cases. Exterior
panels are to be as cabinet except in 1.2 mm Zintec. Paint
Colour to be RAL 9018. The front panels shall be fastened to
the frame using quarter turn fasteners. Side panels shall be
secured to the frame using chrome plated screws. All panels
shall be flush fitting, sealed to the frame sections with closed
cell foam and insulated with a non-shedding material, which
shall be non-combustible, when tested in accordance with B.S.
476 Part 6 and 7. The units shall be fully accessible and
serviceable from the front.

Cooling Coil

The cooling coils shall be multi-row constructed from 10mm
O/D copper tubes with aluminium fins. Large surface areas
shall ensure high sensible heat ratios and low airside pressure
drops, resulting in reduced fan power requirements and noise
levels. All DX coils shall be tested to 25 bar.

DX Units

Each unit shall have 2 independent refrigerant circuits, each
with a liquid distributor, expansion valve, sight glass and filter
drier.

Fans

Large, low speed, double inlet, double width fans with forward
curved impellers and “sealed for life” self-aligning bearings
shall be used to minimize noise levels. Fans are belt driven. All
units have twin fans on a common shaft. The fan/motor
assembly is on a separate isolated deck.

Twin Belts

Twin grooved pulleys and twin belts giving a fixed speed are
provided for each fan assembly.

Motors

The motor shall comply with IP55 TEFC insulated to Class F.

Filtration

The filters shall be 100mm thick disposable pleated panel filter
rated G4 in accordance with EN779. They shall be fitted in the
return air stream and be accessible from the front of a Upflow
unit and the top of a Downflow unit.

Compressors

Compressors shall be high efficiency hermetically sealed scroll
type. Back seating service/isolating valve, high and low
pressure switches, motor overload protection and crankcase
heaters shall be provided. The compressors shall be mounted
on resilient neoprene mountings for vibration isolation.

Electrical Panel

The electrical panel shall be constructed and assembled in
compliance with IEC standards with all components VDE
approved. All sub circuits are protected by MCB’s. The high
and low voltage sections shall be segregated and all high
voltage electrical components shall be touch safe.

Electric Heaters

Electric heaters shall have stainless steel sheathed elements
with stainless steel finning, balanced over three phases and
rated to operate at black heat. Control shall be in two stages.
Protection is by a high temperature safety cut-out stat. The stat
shall be a capillary type mounted in the airstream resettable
from the control section of the electrical panel.

Humidification

The humidifier shall be of the electrode-boiler type. Features
shall include selectable steam output and microprocessor
control with alarms and diagnostic facilities. The humidifier
control system shall allow the use of a wide range of mains
water conditions namely: inlet mains water pressure of 1-10
bar, total hardness of 15-30 French degrees & water inlet
electrical conductivity of 400-800 micro siemens. Unit shall
optimize drain down frequency for maximum operational
economy.

Microprocessor Controls

All units shall be fitted as standard with the latest Delta range
of DIN rail mounted Microprocessor Controls. The Control
System utilizes a main Microprocessor Interface Board
equipped with a set of terminals necessary to connect the Board
to the controlled devices (e.g. valves, compressors, fans,
reheats, sensors and humidifiers). All software is permanently
stored in flash RAM and is therefore protected even in the event
of a power failure. Unit software is uploaded to the
Microprocessor using a RAM key or personal computer. On
multi-unit sites this quickens unit commissioning. The software
can also be easily changed or upgraded on site by qualified
service personnel.

The Microprocessor based Terminal Unit is complete with a 4
line x 20 character backlit LCD Display, keypad and LED
Indicators allowing the user to easily set the main control
parameters (set-points, differentials and alarm thresholds) and
carry out the main working operations (on/off and displaying
controlled variables).

Main features of controller are :

Status: The display shall indicate current temperature, current
humidity, temperature & humidity set points, cooling status,
heating status, humidification status & dehumidification status.

GUIDE SPECIFICATIONS