Trane has developed another system
solution to add to their exceptional
water-source product line. Introducing
the Trane Axiom
source comfort system.
The attractive sloped top design
provides both fundamental performance
requirements, exceptional quality, and
added features to enhance maintenanceability and sound attenuation.
cabinet, and subbase)
1 = Chassis ONLY
2 = Low Height Factory Configuration
(chassis, cabinet, and subbase)
3 = Extended Length Factory Configuration
(chassis, cabinet, and subbase)
DIGIT 27: PAINT COLOR
0 = No Paint Selection Available (chassis
ONLY)
1 = Deluxe Beige
2 = Cameo White
3 = Soft Dove
DIGIT 28: OUTSIDE AIR OPTION
0 = No Outside Air
1 = Outside Air Opening
2 = Motorized Outside Air Option (2-position)
DIGIT 29: PIPING ARRANGEMENT
L = Left Hand Piping Arrangement
R = Right Hand Piping Arrangement
2 = Left Hand Piping Arrangement with
Internal Mounted Loop Pump Kit
3 = Right Hand Piping with Internal Mounted
Loop Pump Kit
DIGITS 30-36: DOES NOT APPLY TO THE
CONSOLE PRODUCT
0000000 = Digits 30-36 Does NOT Apply to
the Horizontal/ Vertical Products
WSHP-PRC004-EN4
Page 5
General Data
Table GD-1 – Physical Data (GECA 006-009)
Model: GECA 006-009006009
Unit SizeLength of cabinet (in) [mm]48 or 63 [1219 or 1600]48 or 63 [1219 or 1600]
Compressor TypeRotaryRotary
R-22 Refrigerant (lbs) [kg]Heating and Cooling1.19 [.54]1.22 [.55]
Approximate Weight without Pallet (lbs) [kg]Unit192 [87.1]204 [92.5]
Approximate Weight with Pallet (lbs) [kg]Unit222 [100.7]234 [106]
Filter Size (standard height - 25" [635 mm])1 x 10 x 32 3/8 [25.4 x 254 x 822]1 x 10 x 32 3/8 [25.4 x 254 x 822]
Filter Size (low height - 22 1/2" [571 mm])1 x 7 3/4 x 30 5/8 [25.4 x 197 x 779]1 x 7 3/4 x 30 5/8 [25.4 x 197 x 779]
Blower Wheel Size (in) [mm](2) 5 1/4 x 8 1/8 [133 x 206](2) 5 1/4 x 8 1/8 [133 x 206]
Table GD-2 – Physical Data (GECA 012-015)
Model: GECA 012-015012015
Unit SizeLength of cabinet (in) [mm]48 or 63 [1219 or 1600]48 or 63 [1219 or 1600]
Compressor TypeRotaryRotary
R-22 Refrigerant (lbs) [kg]Heating and Cooling1.75 [.79]2.44 [1.1]
Hot Gas Reheatn/an/a
Approximate Weight without Pallet (lbs) [kg]Unit203 [92.1]210 [92.3]
Approximate Weight with Pallet (lbs) [kg]Unit233 [106]240 [99.8]
Filter Size (standard height - 25" [635 mm])1 x 10 x 32 3/8 [25.4 x 254 x 822]1 x 10 x 32 3/8 [25.4 x 254 x 822]
Filter Size (low height - 22 1/2" [571 mm])1 x 7 3/4 x 30 5/8 [25.4 x 197 x 779]1 x 7 3/4 x 30 5/8 [25.4 x 197 x 779]
Blower Wheel Size (in) [mm](2) 5 1/4 x 8 1/8 [133 x 206](2) 5 1/4 x 8 1/8 [133 x 206]
Height (in) [mm]25 or 22 1/2 [635 or 571]25 or 22 1/2 [635 or 571]
Width (in) [mm]12 [305]12 [305]
Cooling Only1.06 [.48]1.16 [.53]
Hot Gas Reheatn/a1.375 [.62]
Chassis Only144 [653]156 [70.8]
Chassis Only174 [78.9]186 [84.4]
Height (in) [mm]25 or 22 1/2 [635 or 571]25 or 22 1/2 [635 or 571]
Width (in) [mm]12 [305]12 [305]
Cooling Only1.5 [.68]1.88 [.85]
Chassis Only155 [70.3]162 [73.5]
Chassis Only185 [83.9]192 [87.1]
WSHP-PRC004-EN
5
Page 6
Design Advantages
The console configuration model GECA
product offers a range of capacities
1
/4 ton.
1
This compact HVAC advantage supports
multiple application requirements in the
commercial conditioning industry. This
includes:
Hotel rooms
•
Offices
•
Condominiums
•
Assisted living facilities
•
Dormitories
•
Cabinet
The cabinet is constructed of heavy
gauge metal for maximum durability.
The cabinet finish is produced by a
corrosion resistant electrostatic powder
paint coating in the following
colors:
Deluxe beige
•
Cameo white
•
Soft dove
•
Building Block Design
The console configuration maintains a
tri-building block design. It includes
Cabinetry
•
Chassis
•
Subbase
•
These building blocks may be ordered in
several configurations. They include:
Standard configuration
•
chassis, and subbase)
Low height configuration
•
cabinet, and short subbase)
Extended length for unit mounted loop
•
pump kit
subbase)
Chassis ONLY
•
The cabinet design includes a
secure fit
piping and electrical hookup for ease of
maintenance and serviceability. The
single cabinet assembly is securely
fastened into the wallsleeve.
FB-2 for hook-secure fit.)
(cabinet, chassis, and
that allows complete access to
(cabinet,
(chassis,
1
/2 to
hook-
(See Figure
Features and
Benefits
Figure FB-1 – Cabinet Construction
Figure FB-2 – Hook-Secure Fit
WSHP-PRC004-EN6
Page 7
Field Flexibility
Piping and electrical connections to the
console are made in either the left or
right hand end pocket. The unit
refrigeration platform and the unit
control box is maintained in the same
location whether left or right hand
piping, standard unit cabinetry, extended
unit cabinetry, or low height unit
cabinetry has been specified. This cloned
platform poses a common look and feel
to the installer, as well as aids in
troubleshooting during service or
maintenance checkups.
Differences
Right Hand Piping
Console units ordered with a right hand
piping connection have the end pocket
located on the right hand side of the unit.
This end pocket provides room for
connecting field supply, return, and
condensate piping to the unit. It also
provides space for the high and low
voltage connections.
right hand piping.
Left Hand Piping
Console units ordered with a left hand
piping connection have the end pocket
located on the left hand side of the unit.
This end pocket provides room for the
field supply, return, and condensate
piping connection to the unit. Installation
for the high voltage connection is also
made in the left hand end pocket.
Installing the low voltage controls
(thermostat/sensor hookup) is ALWAYS
made on the right hand side of the unit.
The low voltage termination for
thermostat or sensor wires may be run
along the back side of the chassis to the
right hand side of the unit for
connection.
piping.
Note:
Units containing the unit mounted
control option will ship from the factory
prewired. No low voltage hookup is
required.
See Figure FB-4 for left hand
See Figure FB-3 for
Features and
Benefits
Figure FB-3 – Right Hand Piping
Figure FB-4 – Left Hand Piping
WSHP-PRC004-EN
7
Page 8
Figure FB- 6 – Wall Sleeve
Wall Sleeve
The cabinets wall sleeve is attached to
the wall by (4) four, #10 field provided
screws. This rigid design allows for ease
of separation from the cabinet assembly
during service or installation situations.
The wall sleeve is painted the same color
as the cabinet for aesthetic purposes.
Features and
Benefits
Refrigeration Piping
The unit’s copper tubing is created from
a 99% pure copper formation that
conforms to the American Society of
Testing (ASTM) B743 for seamless, lightannealed processing.
The unit’s copper refrigeration system is
manufactured to be free from
contaminants and conditions such as
drilling fragments, dirt, or oil. This
reduces the possibility of these
contaminants damaging the compressor
motor.
Figure FB-9 – Schrader Connections
Figure FB-7 – Plastic Drain Pan
Drain Pan
The unit drain pan is composed of
plastic, corrosive resistive material. The
pan is positively sloped to comply with
ASHRAE 62 for (IAQ) indoor air quality
conformity.
Access to the drain pan is provided
through the front chassis access panel.
The drain pan is removable for cleaning.
Cabinet Insulation
The cabinet insulation design meets UL
181 requirements. The air stream surface
of the insulation is fabricated of a nonbiodegradable source.
The insulation in the wet section of the
cabinet complies with ASHRAE standard
62 to accommodate (IAQ) indoor air
quality standards.
Figure FB-8 – Rotary Compressor
Compressor
The unit’s design includes a rotary
compressor motor in dedicated voltages
and tonnage sizes to aid in voltage
variations along with noise reduction of
the unit.
As an added benefit, Trane double
isolates the compressor and the
mounting plate assembly in the unit to
reduce sound vibration during
compressor operation.
Schrader Connections
The connections for the low and high
side of the refrigeration system are
located in the chassis portion of the unit
at the front of the refrigeration assembly.
Access to the schrader connections are
made through the refrigeration service
access panel.
Air-to-Refrigerant Coil
The air-to-refrigerant heat exchanger is
constructed of staggered copper tubes
with die-formed corrugated lanced
aluminum fins. The fins are then
mechanically bonded to the tubes
through expansion.
The maximum working pressure of the
coil is 450 psig. It is designed for
maximum capacity with an additional
benefit of physical unit size reduction.
Coil specifications for the GECA unit is
listed below.
Table FB-1 – Coil Specifications
Unit SizeNumber of RowsFins/inch
006314
009214
012314
015414
WSHP-PRC004-EN8
Page 9
Features and
Benefits
Figure FB-10 – Coaxial Water Coil
Coaxial Coil
The unit’s internal heat exchanging
water coil is engineered for maximum
heat transfer.
The copper or cupro-nickel seamless
tubing is a tube within a tube design.
The inner-tube contains a deep fluted
curve to enhance heat transfer and
minimize fouling and scaling. Coaxial
heat exchangers are more tolerant to
freeze rupture.
Compressor and Coaxial Coil Isolation
Vibration isolation for the compressor
and coaxial water coil is accomplished
by increasing the rigidity and stiffness at
the base for the compressor, and at the
back of the chassis for the coaxial water
coil. This platform includes double
isolation to the compressor and single
isolation to the coaxial water coil.
Figure FB-11 – Water Connection
Water Connections
The water-in/water-out connections to
the coaxial water coil are located in the
right-hand or left hand end pocket
(option specific).
The water-in/water-out tubes are a
5
/8-inch [14.7 mm] OD sweat connection.
The connection is available in either a
left hand or right hand piping end
pocket.
Figure FB-12 – Expansion Valve
Expansion Valve
All Trane water-source systems include
an expansion valve flow metering
device.
This thermal expansion valve (TXV)
allows the unit to operate with an
entering fluid temperature from 25 F to
110 F [-3.9 C to 43.3 C], and entering air
temperatures from 40 F to 90 F [4.4 C to
32.2 C]. The valve precisely meters
refrigerant flow through the circuitry to
achieve desired heating or cooling.
Unlike cap-tube assemblies, the
expansion valve device allows the exact
amount of refrigerant required to meet
the coil load demands. This precise
metering by the TXV increases the
efficiency of the unit.
Figure FB-13 – Reversing Valve
Reversing Valve
A system reversing valve (4-way valve)
is included with all heating/ cooling
units. This valve is piped to be energized
in the cooling mode. Once the valve is
energized for cooling, it will remain
energized until the control system is
turned to the OFF position, or a heating
cycle is initiated.
Units with the cooling only option will
not receive a reversing valve.
Figure FB-14 – Fan Board Assembly
Blower Housing
The blower housing is constructed of
non-corrosive galvanized steel.
Serviceability to the housing is made
through the chassis air-side front panel.
The fan housing is mounted onto a
fanboard assembly which also includes
the fan wheel, and fan motor. This fan
board assembly may be easily removed
from the chassis by sliding the fan board
frontward in maintenance or service
situations.
WSHP-PRC004-EN
9
Page 10
Figure FB-15 – Blower Motor
Figure FB-16 – Fan Switch Control Panel
Blower Motor
The supply-air (blower) motor is a multispeed motor with internal thermal
overload protection. The motor bearings
are permanently lubricated and sealed.
Standard motors are rated from 200
CFM at low speed (unit size 006) to 425
CFM at high speed (unit size 015).
All motors are factory wired for low and
high speed options. Switching for speed
control is located in the unit control
(See Figure FB-15 for blower
panel.
motor and Figure FB-16 for fan switching
control panel.)
See fan performance section for factory
ratings of low and high speed settings.
Features and
Benefits
Figure FB-17 – Filter Media
Air-Side Filter
The air-side filter incorporates a 1-inch
[25.4 mm] thick (nominal) disposable
fiberglass option. The filter includes an
average synthetic dust weight arrestance
of approximately 75%. This dust holding
capability includes a colorless, odorless
adhesive to retain dirt particles within
the filter media after fiber contact.
The filter is accessible through the
return-air portion of the unit subbase.
Panel removal is not necessary to
facilitate filter maintenance for the
standard height unit configuration.
Figure FB-18 – Bi-directional Registers
Supply-Air Registers
Supply-air registers for the GECA
product are constructed of a plastic,
corrosive resistive material. The registers
include a snap-in deflection design to
simplify installation, as well as facilitate
the ability to apply a bi-directional
arrangement across the register.
Figure FB-19 – Hinged Control Box
Hinged Control Box
Controls for the console unit are housed
on the right-hand side of the chassis. The
box dwells above the refrigeration
section of the chassis.
Access to the controls are made by way
of a hinged control box. This hinged box
allows easy access for service and
installation of the controls portion of the
chassis.
WSHP-PRC004-EN10
Page 11
Features and
Benefits
Sound Attenuation Package
The console equipment is designed to
achieve the lowest noise levels possible.
Extensive testing has identified the
major sound generating sources within
the console unit package. Every effort
has been made to minimize the sound
generation and transmission from the
compressor, heat exchangers, and fan
sources. Vibration transmission from the
compressor and heat exchangers have
been minimized by the use of isolation.
The use of heavy metal gauges in critical
areas enhance the unit acoustic
performance. A patented two-stage
compressor isolation system has been
specifically designed for the console unit.
Acoustic lining has been used to quiet
compressor noise.
The unit airside acoustic performance
has been engineered to obtain the
quietest acoustic performance through
the fan, and fan housing selection. The
fin tube (air-to-refrigerant) coil and fan
discharge arrangement includes an
additional acoustic lining in the fan
compartment to further reduce the
airside sound levels. (See sound
performance data .)
The sound package for the console unit
includes:
Table FB-2 – Sound Package
Standard Unit
Two stage compressor vibration isolation
Water-to-refrigerant heat exchanger vibration
isolation
12-gauge intermediate mounting plate for the
compressor
Lined compressor inclosure with 1/2-inch [12.7 mm]
cabinet insulation
Heavy gauge base assembly
Maximum sized return-air opening and filter sizing
See Figure FB-20 for console noise
control.
WSHP-PRC004-EN
Figure FB-20 – Console Noise Control
11
Page 12
Features and
Benefits
Water
Sensor
Adjustable
Temperature
Setting
(Factory set
to 55 F
[12.8 C])
Power
Connection
Figure FB-21 – Boilerless Controller
Boilerless Control and Electric Heat
(option)
The boilerless electric heat option is
composed of a nichrome open wire
heating element with an internal
temperature limit placed above the fan
housing and an electronic (boilerless)
controller located in the main control
See Figure FB-21 for boilerless
box.
controller.
The boilerless control option is
comprised of a single stage of electric
heat and is designed to invoice electric
heat in the event that entering-water
temperatures falls below 55 F [12.8 C].
On a call for heating, the electric heater is
energized, locking out the compressor.
Once the entering water temperature
rises, above 60 F [15.6 C], the boilerless
controller returns the unit to normal
compressor heating operation and locks
out the electric heater. This option is
ONLY available on heat pump units.
See
Figure FB-22 for boilerless control
electric heat schematic.
Cooling Only Units with Electric Heat
(option)
Electric heat on a cooling only system
incorporates the same nichrome open
wire coil design as mentioned in the heat
pump version. Although, for units that
utilize a cooling ONLY-electric heat
Table FB-3 – Heating Elements
Unit SizeVoltageNo. of ElementskWHeat Total AmpsDigit 22
006-015220-24023.0010.832 (Minimum)
Figure FB-22 – Boilerless Control Electric Heat Schematic
design, the thermostat is wired directly
to the primary electric heat contactor for
heating, and the compressor contactor
for cooling. See Figure FB-23 for cooling
only with electric heat diagram and
Table FB-3 for heating element size and
quantity.
4.0014.44 3 (Maximum)
Figure FB-23 – Cooling Only With Electric Heat Schematic
WSHP-PRC004-EN12
Page 13
Hot Gas Reheat (option)
For true atmospheric conditioning and
climate control, Trane provides accurate,
cost effective dehumidification control
through a hot gas reheat option. This
option is designed to accommodate the
size 009 console configuration.
With this reheat option, the return air
from the space is cooled by the air-torefrigerant coil, then reheated by the
reheat coil to control not only space
temperature, but to also reduce the
relative humidity of the space. The
amount of moisture removal of a specific
heat pump is determined by the unit’s
latent capacity rating.
When operating in the reheat mode, the
humidistat signals the reheat relay coil to
energize, allowing the high pressure
refrigerant gas to flow from the
compressor, through the reversing valve,
into the reheat valve, for passage
through the reheat coil.
for the reheat conditioning schematic.
Figures FB-25 and FB-26 show the basic
heating and cooling cycle of the console
piped with the reheat option.
Common reheat applications include:
Conditioned-air delivered directly to
•
the space
Auditoriums, theaters, classrooms or
•
where a large latent load exist
Computer room space conditioning
•
Anywhere humidity control is a
•
problem
See Figure FB-24
Features and
Benefits
Figure FB-24 – Reheat Conditioning Schematic
Figure FB-25 – Cooling Mode for Console Unit Piped With Hot Gas Reheat Option
WSHP-PRC004-EN
Figure FB-26 – Heating Mode for Console Unit Piped With Hot Gas Reheat Option
13
Page 14
Features and
Basic 24V
Basic 24V Electronic Controls
The basic 24V electro-mechanical unit
control provides component protection
devices for maximum system reliability.
Each device, is factory mounted, wired,
and tested in the unit. The control
package includes:
the console basic 24V control box.
50 VA transformer
•
Compressor contactor
•
Compressor run capacitor
•
General alarm
•
detected)
Low pressure switch
•
High pressure switch
•
Lockout relay
•
Reversing valve coil
•
cooling units only)
Two-speed fan motor
•
fan speed switch)
18-pole terminal strip
•
field wiring)
Optional: Condensate overflow
•
Optional: Unit mounted controls
•
Optional: Motorized two-position
•
damper
See Figure FB-27 for
(24 volt when a fault is
(for heating and
(unit mounted
(for low voltage
Benefits
Figure FB-27 – Console Basic 24V Control Box
Controls
WSHP-PRC004-EN14
Page 15
Features and
Basic 24V
Figure FB-28 – Low and High Pressure
Switches
Benefits
Safety Devices
All unit safety devices are provided to
prevent compressor damage.
Low Pressure Switch
The low pressure switch prevents
compressor operation under low charge,
excessive loss of charge situations, and
under low temperature operation. This
device is installed on the suction side of
the refrigeration circuit. It is set to
activate at refrigerant pressures of 20
psig to fit most applications.
High Pressure Switch
The high pressure switch prevents
compressor operation during high or
excessive discharge pressures. This
device is located on the discharge side of
the compressor. The pressure switch deenergizes the compressor when
discharge pressure exceeds 395 psig.
See Figure FB-28 for pressure switches.
Controls
Lockout Relay
The lockout relay works with the low and
high pressure switch to prevent
compressor operation if the unit is under
low or high refrigerant circuit pressure,
or condensate overflow conditions. The
lockout relay may be reset at the
thermostat, or by cycling power to the
unit.
General alarm is accomplished through
the lockout relay and is used for driving
light emitting diodes (LEDs). This feature
may be used to drive field supplied
relays, but cannot be used to drive field
installed control inputs.
Stand-alone System
The 24V electro-mechanical design may
be applied as a stand-alone control
system. The stand-alone design provides
accurate temperature control directly
through a unit mounted controller, or a
wall-mounted mercury bulb or electronic
thermostat. This system setup may be
utilized in a replacement design where a
single unit retrofit is needed. It may be
easily interfaced with a field provided
control system by way of the factory
installed 18-pole terminal strip.
This stand-alone control is frequently
utilized on lower volume jobs where a
building controller may not be
necessary, or where field installed direct
digital controls are specified. This type of
control design does require a constant
flow of water to the water source heat
pump. With a positive way to sense flow
to the unit, the units safety devices will
trigger the unit off.
The stand-alone system design provides
a low cost option of installation while still
allowing room control freedom for each
See Figure FB-29 for 24V stand-
unit.
alone system controls.
Figure FB-29 – 24V Stand-alone System Controls
WSHP-PRC004-EN
15
Page 16
Features and
Deluxe 24V
Deluxe 24V Electronic Controls
The deluxe 24V electronic unit control
provides component protection devices
similar to the basic design, but contains
upgraded features to maximize system
performance to extend the system life.
Each device, is factory mounted, wired,
and tested in the unit. The deluxe microprocessor based package includes:
Figure FB-30 for the console deluxe 24V
control box.
Additions to basic 24 volt control:
75 VA transformer
•
General alarm
•
when fault detected)
LED Diagnostics
•
Anti-short cycle compressor protection
•
Random start delay
•
Brown-out protection
•
Low pressure time delay
•
Compressor delay on start
•
Reversing valve coil
•
cooling units only)
Optional: Condensate overflow
•
Optional: Night setback
•
Optional: Hot gas reheat
•
(for dehumidification)
Optional: Electric heat
•
Optional: Compressor disable input
•
Optional: Unit mounted controls
•
Optional: Motorized two-position
•
damper
(dry contact closure
(for heating and
See
Benefits
Figure FB-30 – Console Deluxe 24V Control Box
Microprocessor Design
The 24 volt deluxe design is a
microprocessor-based control board
conveniently located in the control box.
The board is unique to Trane watersource products and is designed to
control the compressor as well as
provide outputs for unit status and fault
detection.
The Trane microprocessor board is
factory wired to a terminal strip to
provide all necessary terminals for field
connections.
deluxe 24V control board.
See Figure FB-31 for the
Controls
Figure FB-31 – Deluxe 24V Control Board
WSHP-PRC004-EN16
Page 17
Features and
Deluxe 24V
Benefits
Deluxe 24V features
include:
Random Start
The random start relay provides a time
delay start-up of the compressor when
cycling to the occupied mode. A new
start delay time between 3 and 10
seconds is applied each time power is
enabled to the unit.
Anti-short Cycle Timer
The anti-short cycle timer provides a
three minute time delay between
compressor stop and compressor
restart.
Brown-out Protection
The brown-out protection function
measures the input voltage to the
controller and halts the compressor
operation. Once a brown-out situation
has occurred, the anti-short cycle timer
will become energized. The general fault
contact will not be affected by this
condition. The voltage will continue to
be monitored until the voltage increases.
The compressor will be enabled at this
time if all start-up time delays have
expired, and all safeties have been
satisfied.
Compressor Disable
The compressor disable relay provides a
temporary disable in compressor
operation. The signal would be provided
from a water loop controller in the
system. It would disable the compressor
because of low water flow, peak limiting
or if the unit goes into an unoccupied
state. Once the compressor has been
disabled, the anti-short cycle time period
will begin. Once the compressor disable
signal is no longer present, and all
safeties are satisfied, the control will
allow the compressor to restart.
Generic Relay
The generic relay is provided for field
use. Night setback or pump restart are
two options that may be wired to the
available relay.
available as factory wired.)
Class II 24VAC signal will energize the
relay coil on terminals R1 and R2.
Terminals C (common), NO (normally
open), and NC (normally closed) will be
provided for the relay contacts.
(Note: Night setback is
An external
Controls
Safety Control
The deluxe microprocessor receives
separate input signals from the
refrigerant high pressure switch, low
suction pressure switch and condensate
overflow.
In a high pressure situation, the
compressor contactor is de-energized,
which suspends compressor operation.
The control will go into
mode initializing a three minute time
delay and a random start of 3 to 10
second time delays. Once these delays
have expired, the unit will be allowed to
run. If a high pressure situation occurs
within one hour of the first situation, the
control will be placed into a
mode, halting compressor
lockout
operation, and initiating the general
alarm.
In a low temperature situation, the low
pressure switch will open after the
compressor starts. If the switch is open
for 45 seconds during compressor start,
the unit will go into
initializing a three minute time delay and
a random start of 3 to 10 second time
delays. Once these delays have expired,
the unit will be allowed to run. If the low
pressure situation occurs again, and the
device is open for more than 45 seconds,
the control will be placed into a
mode, halting compressor
lockout
operation, and initiating the general
alarm.
In a condensate overflow situation, the
control will go into
mode, halting compressor operation,
and initiating the general alarm.
The general alarm is initiated when the
controller goes into a
mode for either high pressure, low
pressure or condensate overflow
conditions. The alarm can be reset at the
thermostat or by cycling power to the
unit.
soft lockout
manual
soft lockout
manual lockout
manual lockout
mode
manual
WSHP-PRC004-EN
17
Page 18
Features and
Deluxe 24V
Microprocessor Board
The application drawing in Figure FB-32
references component device
connections to the microprocessor
board.
Three LED’s (light emitting diodes) are
provided for indicating the operating
mode of the controller. The LED’s are
intended
to aid in troubleshooting and unit
maintenance. The LED’s are labeled on
the circuit board with numbers as
referenced in Table FB-4.
Benefits
Figure FB-32 – Microprocessor Board
Table FB-4 – Diagnostic LED’s
Color: GreenColor: Red
LED1LED2LED3Controller Mode
OFFOFFOFFControl OFF
ONOFFOFFNormal/Compressor OFF
ONOFFFLASHAnti-short cycle
ONOFFONNormal/Compressor ON
Unit mounted controls are available with
both the basic 24 volt electronic control
package and the deluxe 24 volt
electronic control package. With the unit
mounted option, the low voltage wiring
for the unit is factory made.
Controls for the unit mounted package
include a cooler/warmer temperature
control dial, START/STOP manual power
switch, manual changeover from HEAT
to COOL, and fan speed control. See
Figure FB-33 for unit mounted 24 volt
controls.
Figure FB-33 – Unit Mounted 24 Volt Controls
WSHP-PRC004-EN18
Page 19
Features and
Deluxe 24V
Benefits
Small Building Control
The deluxe 24V electro-mechanical
design may be applied as a stand-alone
control system or as a multi-unit
installation system. With a stand-alone
design, units run independently of one
another with a mercury bulb or
electronic digital thermostat.
Controls
With a multiple unit installation, the units
may be daisy-chained directly to the
Trane Tracer loop controller (TLC),
pump(s), boiler, and tower for a
complete networked water-source
system. The TLC provides a night
setback output, and a pump request
input for system optimization.
See Figure FB-34 for 24 volt deluxe
control system.
Figure FB-34 – 24 Volt Deluxe Control System
WSHP-PRC004-EN
19
Page 20
Features and
Tracer ZN.510
Tracer ZN.510 Controls
Tracer ZN.510 is a direct digital control
(DDC) system, specifically designed for
water-source units to provide control of
the entire unit, as well as outputs for unit
status and fault detection. Each device, is
factory installed and commissioned to
ensure the highest level of quality in unit
design. The Tracer ZN.510 control
package includes:
the console Tracer ZN.510 control box.
Additions to 24V Deluxe Controller:
75 VA transformer
•
Heating/cooling status
•
Occupied/unoccupied mode
•
Fan and filter status
•
Reversing valve coil (
•
cooling units only)
Two-speed fan motor (
•
fan speed switch)
18-pole terminal strip
•
hook-up)
Optional: Condensate overflow
•
Optional: Motorized 2-position damper
•
See Figure FB-35 for
for heating and
unit mounted
(for low voltage
Benefits
Figure FB-35 – Vertical Tracer ZN.510 Control Box
Controls
Direct Digital Controls
In addition to being factory configured to
control the unit fan, compressor, and
reversing valve of the unit, the Tracer
ZN.510 controller is designed to
coordinate the water side of the watersource system. If applied in a
peer-to-peer communication
environment, data between similar
controllers may be exchanged without
requiring a building automation system.
See Figure FB-36 for the Tracer ZN.510
board.
Figure FB-36 – Tracer ZN.510 Board
WSHP-PRC004-EN20
Page 21
Features and
Tracer ZN.510
Benefits
Tracer ZN.510 features include:
Compressor Operation
The compressor is cycled on and off to
meet heating or cooling zone demands.
Single compressor units use the unit
capacity and pulse width modulation
(PWM) logic along with minimum on/off
timers to determine the compressor’s
operation. The compressor is controlled
ON for longer periods as capacity
increases and shorter periods as
capacity decreases.
Random Start
To prevent all of the units in a building
from energizing major loads at the same
time, the controller observes a random
start from 0 to 25 seconds. This timer
halts the controller until the random start
time expires.
Reversing Valve Operation
For cooling, the reversing valve output is
energized simultaneously with the
compressor. It will remain energized
until the controller turns on the
compressor for heating. At this time, the
reversing valve moves to a de-energized
state. In the event of a power failure or
controller OFF situation, the reversing
valve output will default to the heating
(de-energized) state.
Fan Operation
The supply air fan operates at the fan
switch selected speed in the occupied or
occupied standby mode. When switch is
set to AUTO, the fan is configured for
cycling ON with heating or cooling. The
fan will run for 30 seconds beyond
compressor shutdown in both occupied
and unoccupied mode.
Filter Maintenance Timer
The controller’s filter status is based on
the unit fan’s cumulative run hours. The
controller compares the fan run time
against an adjustable fan run hours limit
and recommends unit maintenance as
required.
Controls
Data Sharing
The Tracer ZN.510 controller is capable
of sending or receiving data (set points,
fan request, or space temperature) to
and from other controllers on the
communication link. This allows multiple
units to share a common space
temperature sensor in both stand-alone
and building automation applications.
Night Setback
The four operations of the Tracer ZN.510
controller include occupied, occupied
standby, occupied bypass and
unoccupied.
In an occupied situation, the controller
uses occupied heating and cooling set
points to provide heating and cooling to
the building. This occupied operation is
normally used during the daytime hours
when the building is at the highest
occupancy level.
In an occupied standby situation, the
controllers heating and cooling set
points are usually much wider than the
occupied set points. This occupied
standby operation is used during
daytime hours when people are not
present in the space (such as lunchtime
or recess). To determine the space
occupancy, an occupancy sensor is
applied.
In an unoccupied situation, the controller
assumes the building is vacant, which
normally falls in evening hours when a
space may be empty. In the unoccupied
mode, the controller uses the default
unoccupied heating and cooling set
points stored in the controller. When the
building is in unoccupied mode,
individual units may be manually placed
into timed override of the unoccupied
mode at the units wall sensor. During
timed override, the controller interprets
the request and initiates the occupied
setpoint operation, then reports the
effective occupancy mode as occupied
bypass.
In the occupied bypass mode, the
controller applies the occupied heating
and cooling setpoint for a 120 minute
time limit.
WSHP-PRC004-EN
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Page 22
Features and
Tracer ZN.510
Benefits
High and Low Pressure Safety Controls
The Tracer ZN.510 controller detects the
state of the high pressure or low
pressure switches. When a fault is
sensed by one of these switches, the
corresponding message is sent to the
Tracer ZN.510 controller to be logged
into the fault log. When the circuit
returns to normal, the high pressure
control and low pressure control
automatically reset. If a second fault is
detected within a thirty-minute time
span, the unit must be manually reset.
Tracer ZN.510 Board
The application drawing in Figure FB-37
references component device
connections to the Tracer ZN.510 board.
Three LED’s (light emitting diodes) are
provided for indicating the operating
mode of the controller. See Table FB-5
for LED specifics.
Controls
Condensate Overflow
When condensate reaches the trip point,
a condensate overflow signal generates
a diagnostic which disables the fan, unit
water valves (if present), and
compressor. The unit will remain in a
halted state until the condensation
returns to a normal level. At this time,
the switch in the drain pan will
automatically reset. However, the
controller’s condensate overflow
diagnostic must be manually reset to
clear the diagnostic and restart the unit.
Figure FB-37 – Tracer ZN.510 Board
Table FB-5 – Tracer ZN.510 LED’s
LED ActivityDescription
RED LED OFF continuously when power is applied to the controllerNormal operation
RED LED ON continuously, even when power is applied to the controllerSomeone is pressing the service button or the controller has failed
RED LED FLASHES once every secondRestore the unit to normal operation with Rover
GREEN LED ON continuouslyPower ON (normal operation)
GREEN LED BLINKS (one blink)Manual output test mode. No diagnostics present
GREEN LED BLINKS (two blinks)Manual output test mode. One or more diagnostics present
GREEN LED BLINKS (1/4 second on/off for 10 seconds)WINK mode for controller identification
GREEN LED OFFPower off. Abnormal condition. Test button is pressed.
YELLOW LED OFF continuouslyController not detecting communication
YELLOW LED BLINKSController detects communication
YELLOW LED ON continuouslyAbnormal condition
TM
WSHP-PRC004-EN22
Page 23
Features and
Tracer ZN.510
Benefits
Building Control Advantages
The Tracer ZN.510 controller has the
ability to share information with one or
several units on the same
communication link. This sharing of
information is made possible via a
twisted pair of wire and a building
automation system or through Trane’s
™
service tool .
Rover
Controls
This type of application would most
commonly be used for a large space(s)
that may require more than one unit. In
addition to this application design, the
Tracer ZN.510 controller provides a way
for units located within the same space
to share the same zone sensor to
prevent units from simultaneously
heating and cooling in the same space.
See Figure FB-38 for Tracer ZN.510
control system.
Figure FB-38 – Tracer ZN.510 Control System
WSHP-PRC004-EN
23
Page 24
Performance
GECA 006 –
Data
Cooling – I-P
Tabulated performance data is for cooling at 80.6 F [27 C] DB/66.2 F [19 C] WB entering air at ARI-ISO 13256-1 rated CFM.
Sensible multipliers vs. entering dry bulb are given at ARI-ISO 13256-1 rating CFM. Multipliers must be used to correct performance at conditions
other than those tabulated. Data shown is
BOLD
type is performance and multipliers at ARI-ISO 13256-1 WLHP and GLHP conditions.
Tabulated performance data is for cooling at 80.6 F [27 C] DB/66.2 F [19 C] WB entering air at ARI-ISO 13256-1 rated CFM.
Sensible multipliers vs. entering dry bulb are given at ARI-ISO 13256-1 rating CFM. Multipliers must be used to correct performance at conditions
other than those tabulated. Data shown is
BOLD
type is performance and multipliers at ARI-ISO 13256-1 WLHP and GLHP conditions.
Tabulated performance data is for cooling at 80.6 F [27 C] DB/66.2 F [19 C] WB entering air at ARI-ISO 13256-1 rated CFM.
Sensible multipliers vs. entering dry bulb are given at ARI-ISO 13256-1 rating CFM. Multipliers must be used to correct performance at conditions
other than those tabulated. Data shown is
BOLD
type is performance and multipliers at ARI-ISO 13256-1 WLHP and GLHP conditions.
Tabulated performance data is for cooling at 80.6 F [27 C] DB/66.2 F [19 C] WB entering air at ARI-ISO 13256-1 rated CFM.
Sensible multipliers vs. entering dry bulb are given at ARI-ISO 13256-1 rating CFM. Multipliers must be used to correct performance at conditions
other than those tabulated. Data shown is
BOLD
type is performance and multipliers at ARI-ISO 13256-1 WLHP and GLHP conditions.
Tabulated performance data is for cooling at 80.6 F [27 C] DB/66.2 F [19 C] WB entering air at ARI-ISO 13256-1 rated CFM.
Sensible multipliers vs. entering dry bulb are given at ARI-ISO 13256-1 rating CFM. Multipliers must be used to correct performance at conditions
other than those tabulated. Data shown is
BOLD
type is performance and multipliers at ARI-ISO 13256-1 WLHP and GLHP conditions.
Ta bulated performance data is tabulated for heating at 68 F [20 C] DB entering air at ARI-ISO 13256-1 rated CFM.
Multipliers must be used to correct performance at conditions other than those tabulated. Data shown in
multipliers at ARI-ISO 13256-1 WLHP and GLHP conditions.
Tabulated performance data is for cooling at 80.6 F [27 C] DB/66.2 F [19 C] WB entering air at ARI-ISO 13256-1 rated CFM.
Sensible multipliers vs. entering dry bulb are given at ARI-ISO 13256-1 rating CFM. Multipliers must be used to correct performance at conditions
other than those tabulated. Data shown is
BOLD
type is performance and multipliers at ARI-ISO 13256-1 WLHP and GLHP conditions.
Tabulated performance data is for cooling at 80.6 F [27 C] DB/66.2 F [19 C] WB entering air at ARI-ISO 13256-1 rated CFM.
Sensible multipliers vs. entering dry bulb are given at ARI-ISO 13256-1 rating CFM. Multipliers must be used to correct performance at conditions
other than those tabulated. Data shown is
BOLD
type is performance and multipliers at ARI-ISO 13256-1 WLHP and GLHP conditions.
The GECA product line was developed
to be the industry leader in noise
performance. To achieve that goal, state
of the art acoustic design and test
technologies were used to identify and
treat the dominant noise and vibration
transmission paths in each unit. As a
result, numerous noise control features
have been incorporated in the GECA
units, including:
compressor noise control for model
GEHA.
Two stage compressor vibration
•
isolation systems with 12-gauge
intermediate mounting plates
Lined compressor enclosure
•
Heavy-gauge base assembly
•
Maximum sized return-air opening and
•
filter sizing
Water-to-refrigerant heat exchanger
•
vibration isolation
To ensure consistent performance, an
extensive series of tests were conducted
on each cabinet size:
Mock-up (NC) sound pressure testing
•
(a noise evaluation in typical REAL
WORLD installation).
Sound power testing per ARI’s new
•
standard 350 for non-ducted air
handling equipment (a noise
evaluation to quantify the strength of
various sound components for
application in building system design).
These include:
GECA: Inlet + Casing Discharge
For unit specific octave band sound
power data, please refer to the TOPPS
selection program.
See Figure PD-1 for
Performance
DataSound
Figure PD-1 – Elevation View of Noise Control
What is Sound Pressure?
Sound pressure is a pressure
disturbance in the atmosphere whose
intensity is influenced not only by the
strength of the source, but also by the
surroundings and the distance from the
source to the receiver. Sound pressure is
what our ears hear, and what sound
meters measure. The level of sound
pressure, or the loudness of a given
noise source, depends on three factors:
1. The strength of the source
2. The environment in which the source
is located
3. The listener’s distance from the source
As an example, of the effect of
environment, consider the sound
produced by a drum. Clearly, the drum is
perceived to be louder in a bathroom
with hard tile walls than it is in the
middle of a football field. Also, the
farther one moves away from the drum,
the quieter it sounds. In each case, the
vibration of the drum (the strength of the
source) is the same; the perceived
differences in noise level are due to the
environment.
Because of the extremely wide range of
sound pressure perceivable by a persontypically five or six order of magnitude –
it is convenient to express sound
pressure on a logarithmic scale. As a
result, adding two equal sound sources
together will result in an overall increase
of 3 dB. However, 3 dB is barely a
perceptible increase in sound. It takes an
increase of 10 dB to be perceived as
twice as loud.
WSHP-PRC004-EN
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Page 44
Performance
DataSound
What is Sound Power?
Sound power is a measure of the
acoustical energy emitted from a sound
source, and is an absolute value. As
discussed above, our hearing does not
perceive sound power directly, as there
is always some environmental medium
between the source and the listener.
However, from the standpoint of a
building designer, sound power is often
the preferred means of quantifying the
noise of a given unit because it is a
certifiable quantity. Using predictions are
used to tailor the design to the sound
pressure level requirements of the
building. The environmental effects that
must be taken into account when
converting sound power to sound
pressure for a specific location can be
lumped together and called the Transfer
Function.
Sound power should always be used
when making unit to unit sound
comparisons because it is a certifiable
absolute measure of the sound energy
produced by the unit. In contrast, sound
pressure is not certifiable because it is
difficult to ensure that each
manufacturer tests in precisely the same
environment. As in the case of sound
pressure, it is useful to express sound
power on a logarithmic scale.
What are NC and dBA?
Both NC and dBA are single number
descriptors used to represent perceived
loudness. Both scales take into account
the fact that people are more sensitive to
high frequencies than they are to low
frequencies
frequency range)
Noise Criterion (NC) is widely used to
quantify indoor sound. The NC level is
determined by the strength of sound
pressure across the 63 Hz to 8000 Hz
frequency range.
“A” weighted sound (dBA) is a single
number descriptor often used to define
sound in outdoor environments. For
example, local sound ordinances
typically regulate dBA levels at property
lines. Hearing-related safety standards
written by such bodies as the
Occupational Safety and Health
Organization (OSHA) also commonly
refer to A-weighted sound readings.
As a rule, “A” weighting is applied to
octave-band sound pressure data.
Applying “A” weighting sound power is
only appropriate in accordance with ARI
270. While NC and dBA are the most
popular, other single number descriptors
for sound are available including Room
Criterion (RC), NCB and other
weightings.
(see Figure PD-2 for
.
Figure PD-2 – Octave Band Center of
Frequency
WSHP-PRC004-EN44
Page 45
Mock-up Tests of the WSHP
Because the transfer function (the
difference between sound pressure and
sound power) of a water-source comfort
system is often a complex function of
environment and operating mode, we
have found it advantageous to
supplement sound power certification
tests with sound pressure
measurements taken in a mock-up of a
typical environment. The model GECA
mock-up tests were conducted with the
following characteristics.
PD-3 for room characteristics during
sound testing.
Sheet rock walls
•
Standard office-type carpeting
•
Standard office-type 2-ft x 2-ft
•
[.6 x .6 m] acoustical tile drop ceiling
30-ft x 20-ft [9.14 x 6.1 m] room
•
No windows
•
Unit against the short wall (in the
•
middle)
For convenience, NC data for all GECA
units are provided in Table PD-20.
Model GECA NC levels are tabulated in
performance Table PD-20. Test results
are given for each of the four cabinet
sizes. Measurements were taken for the
largest tonnage of each cabinet size.
Mock-up test data provides an excellent
general look at how the units would
perform in a typical environment. If the
proposed installation varies significantly
from the mock-up facility and room
acoustics are a concern an acoustical
prediction is justified. As mentioned
before, a predictive analysis requires
octave band sound power data.
Because of the large volume of ARI-350
sound power data, we refer you to the
TOPSS program for octave band and
overall levels for various components.
See Figure
Performance
DataSound
Figure PD-3 – Room Characteristics During Sound Testing
Access to the unit for servicing purposes should be provided at installation. All
configurations require clearance from other mechanical and electrical equipment on
three service sides (shown below). This enables panel removal from the unit for
service/maintenance ability.
Unit WeightChassis WeightUnit WeightChassis Weight
WSHP-PRC004-EN
49
Page 50
Dimensional
LH Cabinet Std
Left Hand Piping Connection
GECA 006-015
1" = 25.4 mm
Data
Length/Height
WSHP-PRC004-EN50
Page 51
Dimensional
RH Cabinet Std
Data
Length/Height
Right Hand Piping Connection
GECA 006-015
1" = 25.4 mm
WSHP-PRC004-EN
51
Page 52
Dimensional
LH Extended
Left Hand Piping Connection
(Extended Length)
GECA 006-015
1" = 25.4 mm
Data
Length Cabinet
WSHP-PRC004-EN52
Page 53
Dimensional
RH Extended
Data
Length Cabinet
Right Hand Piping Connection
(Extended Length)
GECA 006-015
1" = 25.4 mm
WSHP-PRC004-EN
53
Page 54
Dimensional
LH Std Length/
Left Hand Piping Connection
(Low Height Unit)
GECA 006-015
1" = 25.4 mm
Data
Low Ht. Cabinet
WSHP-PRC004-EN54
Page 55
Dimensional
RH Std Length/
Data
Low Ht. Cabinet
Right Hand Piping Connection
(Low Height Unit)
GECA 006-015
1" = 25.4 mm
WSHP-PRC004-EN
55
Page 56
Dimensional
LH Chassis
Left Hand Piping Connection
(Chassis Only)
GECA 006-015
1" = 25.4 mm
Data
ONLY
WSHP-PRC004-EN56
Page 57
Dimensional
RH Chassis
Data
ONLY
Right Hand Piping Connection
(Chassis Only)
GECA 006-015
1" = 25.4 mm
WSHP-PRC004-EN
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Page 58
Thermostats/
Accessories
Thermostat: X13511039010
Manual Changeover Thermostat
(Digital)
2-stage heat/1-stage cool with
•
HEAT-OFF-COOL
Non-programmable
•
Fan switching includes ON-AUTO
•
Fahrenheit or Celsius
•
Sensors
Thermostat: X13511042010
Auto/Manual Changeover Thermostat
(Digital)
3-stage heat/2-stage cool with HEAT-
•
OFF-COOL-AUTO
7-day programmable
•
Fan Switching includes ON-AUTO
•
Adjustable 1 to 15-degree night setback
•
Fahrenheit or Celsius
•
Thermostat: X13511041010
Auto/Manual Changeover Thermostat
(Digital)
1-stage heat/1-stage cool with HEAT-
•
OFF-COOL-AUTO
Non-programmable
•
Fan switching includes ON-AUTO
•
Fahrenheit or Celsius
•
Thermostat: X13511043010
Manual Changeover Thermostat
(Digital)
2-stage heat/1-stage cool with HEAT-
•
OFF-COOL
5-day programmable
•
Fan switching includes ON-AUTO
•
Adjustable 1 to 15-degree night setback
•
Fahrenheit or Celsius
•
WSHP-PRC004-EN58
Page 59
Thermostats/
Accessories
Thermostat: X13510309010
Subbase: X13530069020
Manual Changeover Thermostat
(Mercury)
1-stage heat/1-stage cool
•
with HEAT-OFF-COOL
Non-programmable
•
Fan switching includes FAN ON-AUTO
•
Sensors
Thermostat: X13510589010
Subbase: X13530034010
Auto Changeover Thermostat (Mercury)
1-stage heat/1-stage cool
•
Non-programmable
•
No switches
•
Adjustable dead band
•
Thermostat: X13510309010
Subbase: X13530069010
Manual Changeover Thermostat
(Mercury)
0-stage heat/1-stage cool with COOL-
•
OFF
Non-programmable
•
Fan Switching includes FAN ON-AUTO
•
Thermostat: X13510589010
Subbase: X13530065010
Manual Changeover Thermostat
(Mercury)
1-stage heat/1-stage cool with HEAT-
•
OFF-COOL
Non-programmable
•
Fan switching includes ON-AUTO
•
Adjustable dead band
•
WSHP-PRC004-EN
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Page 60
Thermostats/
Accessories
Thermostat: X13510598010
Subbase: X13530070010
Auto Changeover Thermostat (Mercury)
1-stage heat/1-stage cool/1-stage
•
cooling changeover with AUTO-OFF
Non-programmable
•
Fan Switching includes ON-AUTO
•
Adjustable dead band
•
Sensors
Thermostat: X13510599010
Subbase: X13530070010
Auto Changeover Thermostat (Mercury)
2-stage heat/1-stage cool/1-stage
•
cooling changeover with OFF-AUTO
Non-programmable
•
Fan switching includes ON-AUTO
•
12-degree night setback
•
Thermostat: X13510598010
Subbase: X13530066010
Auto Changeover Thermostat (Mercury)
1-stage heat/1-stage cool/1-stage
•
cooling changeover with OFF-AUTO
Non-programmable
•
Fan switching includes AUTO-ON
•
2-LEDs (light emitting diodes)
•
Adjustable dead band
•
Thermostat: X13510599010
Subbase: X13530066010
Auto Changeover Thermostat (Mercury)
2-stage heat/1-stage cool/1-stage
•
cooling changeover with OFF-AUTO
Non-programmable
•
Fan switching includes AUTO-ON
•
12-degree night setback
•
2-LEDs (light emitting diodes)
•
WSHP-PRC004-EN60
Page 61
Thermostats/
Accessories
Thermostat: X13510575010
Manual Changeover Thermostat
(Mercury)
1-stage heat/1-stage cool with HEAT-
•
OFF-COOL
Non-programmable
•
Fan switching includes AUTO-ON
•
Sensors
Thermostat: X13510586010
Subbase: X13530053010
Auto Changeover Thermostat (Digital)
2-stage heat/1-stage cool with AUTO-
•
COOL-OFF-HEAT-EM HT
7-day programmable
•
Fan switching includes ON-AUTO
•
12-degree night set back
•
2-LEDs (light emitting diodes
•
2-occupied/2-unoccupied
•
Thermostat: X13510587010
WSHP-PRC004-EN
Auto Changeover Thermostat (Digital)
1-stage heat/1-stage cool with auto
•
changeover
7-day programmable
•
12-degree night setback
•
2-occupied/2-unoccupied
•
61
Page 62
Thermostats/
Accessories
Thermostat: X13510628010
Zone Sensor
Tracer ZN.510 and TUC compatible
•
Internal setpoint
•
Communication jack
•
Sensors
Thermostat: X13510606020
Zone Sensor
Tracer ZN.510 and TUC compatible
•
External setpoint
•
Communication jack
•
ON and CANCEL buttons
•
Thermostat: X13510606010
Zone Sensor
Tracer ZN.510 and TUC compatible
•
External setpoint
•
Communication jack
•
Thermostat: X13510635010
Zone Sensor
Tracer ZN.510 and TUC compatible
•
External setpoint
•
Communication jack
•
ON and CANCEL buttons
•
Fan switch AUTO-OFF
•
WSHP-PRC004-EN62
Page 63
AccessoriesOptions
Accessory Items
Water Regulating Valve Assembly
The water regulating valve assembly
consists of a direct acting valve and a
reverse acting valve installed on the
water-out side of the unit. The direct
acting valve opens in response to an
increase in discharge pressure during
the cooling cycle. The reverse acting
valve opens in response to a decrease in
suction pressure during the heating
cycle. Water regulating valves should be
used where low flow, and low or high
fluid temperature conditions could occur.
This option is beneficial with open loop
systems, but not necessary.
A-1 for water regulating valve assembly.
Figure A-1 – Water Regulating Valve
Assembly
See Figure
Motorized Water Valve for Open-Loop
Systems
The motorized water valve is installed on
the return line of the system between the
loop and the loop pump module. This
isolation device is less expensive and a
very effective alternative to the water
regulating valve.
When the compressor begins running,
the valve will open, allowing water to
flow through the unit. As the compressor
shuts down, the valve slowly closes off.
The main purpose of the motorized
valve is to shut off the flow of water
through the unit when the unit is off,
thus reducing water consumption. The
motorized valve must be fast opening to
prevent compressor trip-out, and slow
closing to prevent water-hammer.
Pump Module
The pump module and the hose kit make
a complete self-contained pumping
package for distributed pumping system.
These kits contain all the necessary
components for the installation,
operation and maintenance of the water
circuit of a closed loop geothermal
application. Standard pump module
features include insulated Grundfos
pumps, insulated cabinet, bronze pump,
and 3-way brass valves. The module is
factory piped, wired, and mounted.
Figure A-2 for pump module assembly.
Literature number WSHPC-IN-5 (729006-03) will provide electrical and
dimensional requirements for the PMCA
and PMBA products.
See
Hose Kits
The basic hose kit consists of a stainless
steel outer braid with an inner core or
tube made of a non-toxic synthetic
polymer. The couplings are designed
with solid male pipe thread at one end,
and a ground-joint cone seat swivel
female with a male adapter at the
opposite end. The hoses are suitable for
water temperatures ranging between
33 F and 211 F [.55 C and 99.4 C] without
the use of glycol.
Additional options can be provided to
accompany the hose kit design. These
kits consist of a manual shut off/
balancing device on the supply and
return, or a self balancing device. The
specialized hose kits can be ordered with
or without a strainer.
the WSHP hose kit.
Figure A-3 – WSHP Hose Kit
See Figure A-3 for
WSHP-PRC004-EN
Figure A-2 – Pump Module Assembly
See WSHP-SVX01A-EN for more
detailed specifications on hose kit
options. Hose kit options include:
Circuit setter hose kit
•
Manual balancing hose kit
•
Automatic self-balancing hose kit
•
63
Page 64
Mechanical
Specifications
General
Equipment shall be completely
assembled, piped, internally wired and
test operated at the factory. It shall be
both ETL and ISO-ARI 13256-1 listed and
labeled prior to leaving the factory.
Service and caution area labels shall also
be placed on the unit in their appropriate
locations.
Cabinet
The cabinet shall be constructed of
galvanized steel, with exposed edges
rounded. The steel shall include
electrostatic powder paint in three
attractive colors for an appliance grade
finish. Service to the refrigerant and
controls shall be provided through a
single access panel at the front of the
unit chassis. Insulation for the internal
parts and surfaces exposed to the
conditioned air stream shall be made of
moisture resistant insulation.
The insulation shall be ½-inch [12.7 mm]
thick dual density bonded glass fiber.
The exposed side shall be a high density
erosion proof material suitable for use in
airstreams up to 4500 feet per minute
(FPM). Insulation shall meet the
Underwriters’ Laboratories Fire Hazard
Classification:
Flame spread = 20
•
Fuel Contributed = 15
•
Smoke developed = 0
•
Access for inspection and cleaning of the
unit drain pan, coils and fan section shall
be provided. The unit shall be installed
for proper access. Procedures for proper
access inspection and cleaning of the
unit shall be included in the maintenance
manual.
Sound Attenuation
Sound attenuation shall be applied as a
standard feature in the product design.
The sound reduction package shall
include a vibration isolation to the
compressor and water-to-refrigerant coil,
a second stage of vibration isolation to
the compressor base pan, heavy gauge
base assembly, insulated metal
compressor enclosure, and maximum
sized return-air opening and filter sizing .
The unit shall be tested and rated in
accordance with ARI 350.
Refrigeration System
Compressor
The unit shall include a general efficiency
rotary compressor. External vibration
isolation shall be provided by rubber
mounting devices located underneath
the mounting base of the compressor. A
second isolation of the refrigeration
assembly shall be supported under the
compressor mounting base.
Thermal overload protection shall be
provided. Protection shall be provided
against excessive discharge pressure
operation by means of a high pressure
switch. Loss of charge protection shall
be provided by a low pressure switch.
Water-to-Refrigerant Heat Exchanger
The water-to-refrigerant heat exchanger
shall be of a high quality coaxial coil for
maximum heat transfer. The copper or
optional cupro-nickel coil shall be deeply
fluted to enhance heat transfer and
minimize fouling and scaling. The coil
shall have a working pressure of 450
psig on both the refrigerant and water
sides. The factory shall provide rubber
isolation to the heat exchanging device
to enhance sound attenuation.
Reversing Valve
The reversing valve shall be a pilot
operating sliding piston type with
replaceable encapsulated magnetic coil.
This valve shall be energized in cooling.
Tubing
The refrigerant tubing shall be of 99%
pure copper. This system shall be free
from contaminants and conditions such
as drilling fragments, dirt and oil. All
refrigerant and water lines shall be
insulated with an elastomeric insulation
that has a 3/8-inch [9.5 mm] thick wall
where ever air is introduced to the
assembly.
Refrigerant Metering
The equipment shall be provided with a
(TXV) thermal expansion valve to allow
operation of the unit with entering fluid
temperature from 25 F to 125 F [-3.9 C to
51.7 C].
Schrader Connections
The refrigerant access ports shall be
factory supplied on the high and low
pressure sides for easy refrigerant
pressure or temperature testing.
Air-to-Refrigerant Coil
The air-to-refrigerant coil shall contain
copper tubes mechanically expanded
into evenly spaced aluminum fins. All
coils are to be leak tested. The proof
must be performed at 450 psi operating
pressure and the leak test at 125 psi
operating pressure with helium. In
addition, the tubes are to be completely
evacuated of air prior to shipment.
The refrigerant coil distributor assembly
shall be of orifice style with round
copper distributor tubes. The tubes shall
be sized consistently with the capacity of
the coil. Suction headers shall be
fabricated from rounded copper pipe.
A thermostatic expansion valve shall be
factory selected and installed for a wide
range of control.
WSHP-PRC004-EN64
Page 65
Mechanical
Specifications
Electrical
The factory tested and installed control
box shall contain all necessary devices to
allow heating and cooling operation of
the equipment to occur from a remote
wall thermostat or zone sensor. These
devices shall be as follows:
24 VAC. Energy Limiting Class II, 50 VA
•
breaker type transformer (minimum)
24 VAC contactor for compressor
•
control
18 Pole terminal strip located inside the
•
control box behind the service access
panel. This terminal strip shall be used
for low voltage (thermostat/zone
sensor) connections.
An electrically operated safety lockout
•
relay shall help prevent cycling of the
compressor during adverse conditions
of operation. This device shall be reset
either at the remote thermostat/ zone
sensor, or by cycling power to the unit.
A high pressure switch shall help
•
protect the compressor against
operation at refrigerant system
pressure in excess of 395 psig.
A low pressure switch shall help
•
prevent compressor operation under
low charge or catastrophic loss of
charge situations.
Factory installed wire harness shall be
•
available for the Basic, Deluxe, Tracer
ZN.510 and Terminal Unit Control
packages.
Controls
Basic Controls
The basic control package shall contain a
low and high pressure switch along with
a compressor lockout relay for control
assistance. High voltage power
connections shall be made at the
equipments contactor. An optional
condensate overflow detection device
shall be made available with this control
package. Each device shall be factory
mounted, wired, and tested in the
equipment.
Deluxe Controller
The deluxe control package shall provide
a 75 VA transformer. The controller shall
include a lockout relay, anti-short cycle
compressor protection, random start
delay, brown-out protection, low
pressure time delay, compressor delay
on start and an open relay for night
setback or pump request. Optional
wiring from the factory for night setback,
condensate overflow, hot gas reheat,
electric heat and compressor enable
shall also be provided. Three LEDs (light
emitting diodes) shall also be included
for diagnostics of the equipment.
Tracer ZN.510 Controller
This system shall utilize factory furnished
and mounted DDC controls for operation
of up to 100 units on a Comm 5 link. The
Tracer ZN.510 control package shall
include a 75 VA transformer. The
controller shall provide random start
delay, heating/cooling status, occupied/
unoccupied mode, fan status and filter
maintenance options. Optional wiring
from the factory for condensate overflow
shall be available. Three LEDs (light
emitting diodes) shall be included for
diagnostics of the equipment.
Terminal Unit Controller
This system shall utilize factory furnished
and mounted DDC controls for operation
of a complete building system on a
Comm 4 link. The TUC control package
shall include a 75 VAC transformer. The
controller shall provide anti-short cycle
compressor protection, random start,
heating/cooling status, occupied/
unoccupied mode, as well as fan and
filter status options. Optional wiring from
the factory for condensate overflow, hot
gas reheat and electric heat shall be
available. Five LEDs (light emitting
diodes) shall also be included for
diagnostics of the equipment.
Unit Mounted Controls
Factory wired unit mounted controls
shall be available for both the basic and
deluxe control packages. The units low
voltage side shall be factory wired and
require no external wiring in the field.
The unit mounted device shall include a
temperature control thermostat knob,
ON/OFF control switch, manual
changeover from COOL to HEAT, and fan
speed control of HIGH and LOW.
The controls shall be accessible behind a
durable plastic cover that shall be
available with or without key-lock access.
WSHP-PRC004-EN
65
Page 66
Mechanical
Specifications
Drain Pan
The drain pan shall be constructed of
corrosion resistant material and
insulated to prevent sweating. The
bottom of the drain pan shall be sloped
on two planes which pitches the
condensate to the drain connection.
When the unit is installed and trapped
per the manufacturers installation
manual, the drain pan shall be designed
to leave puddles no more than 2-inch
[50.8 mm] in diameter, no more than
1
/8-inch [3.2 mm] deep, no longer than 3
minutes following the step 3 of the
following test. The test steps are:
1. Temporarily plug the drain pan.
2. Fill the drain pan with ½-inch
[12.7 mm] of water or the maximum
allowed by the drain pan depth,
whichever is smaller.
3. Remove the temporary plug.
Motors
The motors shall be a multi-speed
permanent split capacitor with thermal
overload protection. A high and low
switching device shall be provided for all
units and accessible behind the hinged
control door. The motor shall contain a
quick-disconnect plug and permanently
lubricated bearing.
Fans
The fans shall be placed in a blowthrough configuration. They shall be
constructed of corrosion resistant
galvanized material.
Electric Heat
The electric heat option (boilerless for
the heat pump version) shall be factory
wired and tested. It shall be composed of
a nichrome open wire coil designed for 2
kW per unit ton. It shall consist of a
single stage of electric heat used as a
primary heating source when
compressor lockout has occurred due to
the entering water temperature falling
below 55 F [12.8 C] in a boilerless
situation.
Reheat Coil
Dehumidification shall be provided
through a hot gas reheat option. The coil
shall consist of copper tubes
mechanically expanded into evenly
spaced aluminum fins. All coils are to be
proof and leak tested. The proof must be
performed at 1.5 times the maximum
operating pressure and the leak test at
the maximum operating pressure. In
addition, the tubes are to be completely
evacuated of air to check for leaks in a
vacuum.
Water Regulating Valve
Assembly
The water regulating valve assembly
shall consist of a direct acting valve and
a reverse acting valve. The direct acting
valve shall open in response to an
increase in discharge pressure during
the cooling cycle. The reverse acting
valve shall open in response to a
decrease in suction pressure during the
heating cycle. Water regulating valves
shall be used where low flow, or low or
high fluid temperature conditions exist.
This accessory shall be used with openloop systems.
Ball Valves
Ball valves shall be field installed
between the unit and the loop pump
module, on both supply and return lines
to the loop.
Motorized Water Valve
When extreme fluid temperature
conditions do not exist with an open
loop system, a motorized water valve
shall be applied. The motorized valve
shall aid in maintaining pressure in the
loop during equipment cycling.
Pump Module
The pump module shall be a complete
self contained pumping package for an
earth-coupled heat pump system. The
module shall be factory installed at the
coil with union connections. Pressuretemperature ports shall be provided
between the coil union and the module
on both the water-in and water-out
piping packages.
The module shall consist of a single, 1/6HP bronze pump, and a brass 3-way
shutoff valve. These kits shall contain the
necessary components for the
installation, operation, and maintenance
of the water circuit of a closed-loop
distributed pumping application.
Hoses
Hoses shall consist of a stainless steel
outer braid with an inner core of tube
made of a nontoxic synthetic polymar
material. The hoses shall be suitable for
water temperatures ranging between
33 F and 211 F [.55 C and 99.4 C] without
the use of glycol.
Automatic Flow Devices
The automatic self-balancing device
shall automatically limit the rate of flow
to within 10-percent of the specified
amount, over a 40 to 1 differential
pressure operating range of 2 to 80 PSID.
The operational temperature shall be
rated from fluid freezing, to 225 F
[107.2 C].
The valve body shall be suited for
working pressures of 400 PSIG. The
valve internal core shall consist of one or
more high temperature elastomeric
diaphragms and precision orifice with
sculptured orifice seat.
Dual pressure/temperature test ports
shall be standard for verifying the
pressure differential and system
temperature.
Warranty
The unit shall be warranted by the
manufacturer against defects in material
and factory workmanship for one year.
The refrigerant circuit including motorcompressor, expansion device, all heat
exchangers in contact with refrigerants,
and reversing valve (less solenoid coil)
shall be warranted for that year (parts
only). Optional extended warranties shall
be made available.
WSHP-PRC004-EN66
Page 67
WSHP-PRC004-EN
67
Page 68
The Trane Company
An American Standard Company
www.trane.com
For more information contact
your local sales office or
e-mail us at [email protected]
Literature Order Number
File Number
Supersedes
Stocking Location
WSHP-PRC004-EN
PL-RF-WSHP-000-PRC004-EN--0201
New
La Crosse
Since The Trane Company has a policy of continuous product and product data improvement, it reserves
the right to change design and specifications without notice.
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