High Eer Type - Toshiba RUAGP Series Original Owner's Manual

A water spray system, that sprays water onto the air heat exchanger surface (evaporative condenser), is installed
on the chiller for all high EER USX EDGE model codes. Water is sprayed onto the heat exchanger when
operation start temperature and the compressor capacity is greater than preset values for these parameters.
Operation start/end temperature and operation start/end capacity can be adjusted. Use UP or DOWN of the unit
controller to select "C. dnSt" and then touch ENTER. Then the setting value of d-□□ (where □□ is DN code)
can be changed. The dimensional drawing of air heat exchanger spray, main specifications, and DN code list are
shown below.
No. NAME
1 WATER INLET 2-1/2" FLANGE
2 WATER OUTLET 2-1/2" FLANGE
3 COIL DRAIN PT1-1/2" EXTERNAL THREAD
4 AIR VENT VALVE PT1/2" INTERNAL THREAD
5 STRAINER CASING: Equivalent to FC250
6 CHECK VALVE CASING: Equivalent to FC200
JIS10K FLANGE Equivalent to SUA304
WATER PIPING
7
(INRET)
PIPING Equivalent to SUA304
JIS10K FLANGE Equivalent to SUA304
WATER PIPING
8
(OUTLET)
PIPING Equivalent to SUA304
9 PUMP CASING: FC200
PLATE, JOINT Equivalent to SUA316
10 WATER HEAT
EXCHANGER
SOLDER PURE COPPER
11 HOUSING TYPE JOINT GASKET *1 EPDM
12 WATER SUPPLY PORT FOR SPRAY PT1/2" EXTERNAL
*1 DESCRIPTION OF WETTED PART
WATER SUPPLY PORT
FOR SPRAY
2-1/2" FLANGE: 4-φ19
3" FLANGE: 8-φ19
2-1/2" FLANGE: 4-φ19
3" FLANGE: 8-φ19
COIL DRAIN
Amount of water sprinkled (L/min)
Supply water pressure (MPa)
Water temperature range (ºC)
Control system
DN code Functions
61
Evaporative condenser operation start
temperature [ºC]
62
Evaporative condenser operation end
temperature [ºC]
(differential from start temperature)
63
Evaporative condenser operation start
capacity [%]
64
Capacity when evaporative condenser
operation ends [%]
(Difference with start capacity)
Note: This is the value when the compressor frequency at rated capacity is 100%.

High EER Type

* Pumpless units exclude pumps and check valves
Dimensional drawing for high EER type
JOINT
(BOTTOM-φ40) (Note. 4)
WATER PIPING
(OUTLET)
WATER INLET
WATER INLET
AIR VENT VALVE
STRAINER
(20Meshes/in.)
WATER PIPING
(INLET)
CHECK VALVE
THERMAL INSLATION
(FIELD-SUPPLIED)
Air heat exchanger sprinkler specifications
When the outdoor air temperature is more than the operation start temperature and the compressor
capacity is more than the operation start capacity, water is sprinkled continuously.
When the outdoor air temperature is less than the operation end temperature or the compressor
capacity is less than the operation end capacity, the operation ends.
DN code list (HIF board in control box)
Outside air temperature that triggers operation
Operation ends if following value is less than stated value:
evaporative condenser operation start outside air temperature -
evaporative condenser operation end outside air temperature
Compressor capacity when operation starts (Note)
Operation ends if following value is less than stated value:
evaporative condenser operation start compressor capacity -
evaporative condenser operation end compressor capacity
(MOUNTING HOLE PITCH)
DRAIN
PUMP
DRAIN PLUG
WATER HEAT EXCHANGER
CONTROL LINKAGE WIRING BETWEEN MODULES
13.6 (per module)
Description
- 68 -
EXTERNAL CONTROL
BOTTOM (φ35 KNOCK OUT PUNTCH)
MODULE CONTROLLER
(INSTALLED IN ONLY ONE
POWER LAMP, SWITCH
MODULE)
SERIAL PLATE
(CENTRALIZED
CONTROLLER)
POWER SUPPLY
(φ80)
LIFTING HOLE
(4-φ25)
HOUSING TYPE JOINT
EXTERNAL CONTROL
0.2
10 to 30
Initial value
POWER SUPPLY
BOTTOM (φ80 KNOCK OUT PUNCH)
POWER SUPPLY
BOTTOM (φ80 KNOCK OUT PUNCH)
BASE, SIDE
MOUNTING HOLE
(4-φ20)
DETAIL A
Variable range
30 20 to 45
2 1 to 10
75 0 to 100
5 0 to 100