Carrier AQUAZONE RDS006-060 Product data

Product
Data
Aquazone™
50RHE006-060
Water Source Heat Pumps
Horizontal Unit
50 Hz, CE Mark
R-407C
1.5 to 13.7 Nominal kW (Cooling)
1.8 to 16. 8 Nominal kW (Heating)
TM
Single-Package Horizontally Mounted
Water Source Heat Pumps with Electronic Controls.
• High efficiency design with
environmentally friendly HFC-407C
refrigerant
• Performance rated in accordance
with ISO 13256-1
• Wide application use with an
operating temperature range of
–6.7 C to 43.3 C
• Thermostatic expansion valve
(TXV) provides efficient and reliable
refrigerant flow
• Available mute package for extraquiet operation
• Three service panels for
compressor section for easy
maintenance
• Spring-mounted compressors for
quiet operation
• Ease of installation with factory
mounted flow regulators and control
valves
• Flexible and reliable controls
accommodate all systems
Features/Benefits
Carrier’s Aquazone high
efficiency water source heat
pumps are a flexible
alternative for all boiler/tower
and geothermal design
applications
Operating efficiency
Carrier horizontal water source heat
pumps are designed for quality and
high performance over a lifetime of
operation. Aquazone high efficiency
units offer cooling COP to 4.6 and
heating COPs to 4.7. Efficiencies
stated are in accordance with standard
conditions under ISO (International
Organization for Standardization)
Standard 13256-1 and provide among
the highest ratings in the industry.
Copyright 2004 Carrier Corporation
Form 50RHE-C1PD
High quality construction and
testing
All units are manufactured to meet extensive quality control protocol from
start to finish through an automated
control system, which provides continuous monitoring of each unit and
performs quality control checks as
equipment progresses through the production process. Standard construction
features of the Carrier Aquazone™
units include:
Cabinet — Standard unit fabrication
consists of heavy gage galvanized sheet
metal cabinet construction designed for
part standardization (i.e., minimal
number of parts) and modular design.
Cabinet interior surfaces are lined with
1/ in. thick, 11/ lb (12.7 mm thick,
2
2
0.7 kg) acoustic type insulation. Sheet
metal surfaces are treated for maximum corrosion protection to ensure
resilience for long term vitality. Compact cabinet dimensions are designed
to fit tight space limitations in both
horizontal and vertical configurations.
Compressor — Aquazone high efficiency units include a rotary compressor design in size 006 through 015, reciprocating compressor in sizes 019
through 048, and scroll compressor in
size 060. Compressor isolating springs
are specially selected for each compressor size. The external springs are
mounted on an isolated railing system
(i.e., from the cabinet) that maximizes
vibration isolation and minimizes transmission to the unit structure.
Blower and motor assembly —
Permanent split capacitor (PSC) threespeed blowers are provided with all
units to satisfy many air distribution
applications. Blowers provide upgrade
on certain sizes for high static conditions and fan speed control to accommodate reduced sound operation.
Blowers also provide dehumidification
control with the correct controller option. Blower motors are designed to
operate at lower temperatures to help
improve the reliability of the water
source heat pump.
Refrigeration/water circuit —
Units have a sealed refrigerant circuit
including a rotary, reciprocating, or
scroll compressor. Refrigerant circuits
are provided with a standard thermostatic expansion valve (TXV) for higher
accuracy and performance. Also
standard are a reversing valve (4-way
valve), water-to-refrigerant coaxial
(tube in tube) coil, and enhanced
aluminum fin/rifled copper tube air to
refrigerant heat exchanger coil.
Performance — Aquazone units are
factory tested under normal
ISO 13256-1 operating conditions at
nominal water flow rates. Quality
assurance is provided via testing report
cards shipped with each unit to indicate
specific unit performance under cooling
and heating modes of operation.
Quiet operation
Fan motor insulation and compressor
springs are provided for sound isolation,
cabinets are fully insulated to reduce
noise transmission, low speed blowers
are utilized for quiet operation through
reduced outlet air velocities, and air-torefrigerant coils are designed for lower
airflow coil face velocities.
Table of contents
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ISO 13256-1 Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6,7
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-25
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28-31
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32-34
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35-38
2
Design flexibility
Airflow configurations for horizontal
units are available in four patterns including left or right return, and left,
right, or back discharge. Horizontal
units are field convertible from left or
right discharge to back discharge.
Extended water temperature range
between –6.7 C and 43.3 C offers
maximum design flexibility for all
applications. Water flow rates as
low as 0.027 L/s per kW assist with
selection from a various range of
circulating pumps. Factory-installed
options are offered to meet specific
design requirements.
Safe, reliable operation
Standard safety features for the refrigerant circuit include high-pressure
switch, low-pressure sensor to detect
loss of refrigerant and low air temperature sensor to safeguard against freezing. Equipment safety features include
water loop temperature monitoring,
voltage protection, water coil freeze
protection, and standard electronic
condensate overflow shutdown. All
safety features are tested and run at the
factory to assure proper operation of
all components and safety switches.
Features/Benefits (cont)
All components are carefully designed and selected for endurance,
durability, and carefree day-to-day
operation.
The Aquazone™ unit is shipped to
provide internal and external equipment protection. Shipping supports
are placed under the blower housing
and compressor feet. In addition, horizontal units are mounted on oversized
pallets with lag bolts for sturdiness and
maximum protection during transit.
Ease of installation
The Aquazone unit is packaged for
simple low cost handling, with minimal
time required for installation. All units
are pre-wired and factory charged with
refrigerant. Horizontal units are provided with factory-installed hangar isolation brackets. Water connections (FPT)
and condensate drains (FPT) are anchored securely to the unit cabinet.
Simple maintenance and
serviceability
The Aquazone WSHP units are constructed to provide ease of maintenance. All units allow access to compressor section from 3 sides and have
large removable panels for easy access.
Additional panels are provided
to access the blower and control box
sections.
The blower housing assembly can be
serviced without disconnecting ductwork from the dedicated blower access
panel. Blower units are provided with
permanently lubricated bearings for
worry-free performance. Blower inlet
rings allow removal of the blower
wheel without having to remove the
housing or ductwork connections.
Electrical disconnection of the
blower motor and control box is easily
accomplished from quick disconnects
on each component.
Easy removal of the control box
from the unit provides access to all
refrigeration components.
The refrigeration circuit is easily
tested and serviced through the use of
high and low pressure ports integral to
the refrigeration circuit.
Maximum control flexibility
Aquazone water source heat pumps
provide reliable control operation using
a standard microprocessor board with
many intelligent features.
Carrier’s Aquazone standard unit
solid-state control system, the Complete C, provides control of the unit
compressor, reversing valve, fan, safety
features, and troubleshooting fault indication features. The Complete C is
one of the most user friendly, low cost,
and advanced control boards found in
the WSHP industry. Many features are
field selectable to provide the ultimate
in field installation flexibility. The overall features of this standard control
system include:
50 va transformer — Assists in accommodating accessory loads.
Anti-short cycle timer — Provides a
minimum off time to prevent the unit
from short cycling. The 5-minute timer
energizes when the compressor is
deenergized, resulting in a 5-minute
delay before the unit can be restarted.
Random start relay — Ensures a
random delay in energizing each different WSHP unit. This option minimizes
peak electrical demand during start-up
from different operating modes or after
building power outages.
High and low pressure refrigerant
protection — Safeguards against
unreliable unit operation and prevents
refrigerant from leaking.
Condensate overflow sensor —
Electronic sensor mounted to the drain
pan. When condensate pan liquid
reaches an unacceptable level, unit is
automatically deactivated and placed in
a lockout condition. Thirty continuous
seconds of overflow is recognized as a
fault by the sensor.
High and low voltage protection
— Safety protection for excessive or
low voltage conditions.
Automatic intelligent reset — Unit
shall automatically restart 5 minutes
after shutdown if the fault has cleared.
Should a fault occur 3 times sequentially, lockout will occur.
Accessory output — A 24-v output
is provided to cycle a motorized water
valve or damper actuator with compressor in applications such as variable
speed pumping arrangements.
Performance Monitor (PM) —
Unique feature monitors water temperatures to warn when the heat pump is
operating inefficiently or beyond typical operating range. Field selectable
switch initiates a warning code on the
unit display.
Water coil freeze protection (selectable for water or antifreeze) —
Field selectable switch for water and
water/glycol solution systems initiates
a fault when temperatures exceed
the selected limit for 30 continuous
seconds.
Air coil freeze protection (check
filter operation) — Field selectable
switch for assessing excessive filter
pressure drop initiates a fault when
temperatures exceed the selected limit
for 30 continuous seconds.
Alarm relay setting — Selectable
24-v or pilot duty dry contact for providing activation of a remote alarm.
Electric heat option — Output provided on the controller for operating
two stages of emergency electric heat.
Service test mode with diagnostic LED (light-emitting diode) —
The Test mode allows service personnel to check the operation of the
WSHP and control system efficiently.
Upon entering Test mode, time delays
are sped up, and the Status LED will
flash a code to indicate the last fault
experienced for easy diagnosis. Based
on the fault code flashed by the status
LED, system diagnostics are assisted
through the use of Carrier provided
troubleshooting tables for easy reference to typical problems.
LED visual output — An LED panel
indicates high pressure, low pressure,
low voltage, high voltage, air/water
freeze protection, condensate overflow, and control status.
3
Model number nomenclature
50RH
E
006
S F
C
7
0
Aquazone™ Water Source Heat Pump
50RH – Horizontal Configuration
Refrigerant Type
E – High Efficiency R-407C
Size – Nominal Capacity (kW)
Cooling Heating
Cooling Heating
006 – 1.5
1.8
030 – 6.4
7.9
009 – 2.1
2.4
036 – 8.0
10.6
012 – 2.5
3.4
042 – 9.9
11.3
015 – 3.9
3.8
048 – 11.4
14.3
019 – 4.9
6.1
060 – 13.7
16.8
024 – 5.7
3
3
0
Water Circuit Options
0 – None
8 – Autoflow Regulator
(0.045 L/s per kW)
9 – Autoflow Regulator
(0.054 L/s per kW)
Operating Range
1 – Extended Range (-6.7 to 43.3 C)
2 – Extended Range (-6.7 to 43.3 C)
with Mute Package
3 – Standard Range (15.6 to 35 C)
4 – Standard Range (15.6 to 35 C)
with Mute Package
Packing
3 – Export Pack
Revision Code
0 – Current Revision
Airflow Configuration*
Normal Static, All Sizes
Code
Return Discharge
S
Left
Right
E
Left
Back
Z
Right
Left
B
Right
Back
50RHE048-High Static Units
Code
Return Discharge
D
Left
Right
F
Left
Back
A
Right
Left
C
Right
Back
Controls
F – Complete C Microprocessor Control with CE Mark
G – Deluxe D Microprocessor Control with CE Mark
*Right and left hand orientation is determined by looking at water connection side (front).
4
V-Ph-Hz
7 – 220/240-1-50
(sizes 006-036)
9 – 380-415/3/50
(sizes 030-060)
Heat Exchanger
C – Copper
N – Cupro-Nickel
S – Cupro-Nickel with
two-way water
control valve
T – Copper with two-way
water control valve
ISO* 13256-1 capacity ratings
50RHE WATER LOOP APPLICATIONS
UNIT
50RHE
006
009
012
015
019
024
030
036
042
048
060
PRESSURE
DROP
kPa
6.8
9.9
34.3
27.0
19.1
23.7
13.9
12.2
16.3
22.3
32.5
LIQUID
FLOW
(L/s)
AIRFLOW
(L/s)
0.069
0.107
0.145
0.164
0.215
0.284
0.347
0.429
0.498
0.568
0.713
81
113
140
212
264
307
349
437
530
630
790
EWT
Cooling 30 C Heating 20 C
TC
COP
TC
COP
1 500 3.3
1 800 3.9
2 100 4.0
2 400 4.2
2 500 3.1
3 400 3.7
3 900 4.6
3 800 4.7
4 900 3.3
6 100 4.0
5 700 3.4
7 000 4.0
6 400 3.3
7 900 4.0
8 000 3.3 10 600 4.0
9 900 3.7 11 300 4.4
11 400 3.6 14 300 4.1
13 700 3.4 16 800 4.3
COP —
EWT —
TC
—
LEGEND
Coefficient of Performance
Entering Water Temperature
Total Capacity (Watts)
NOTES:
1. A water-to-air heat pump using water or brine circulating in a common piping
loop functioning as a heat source/heat sink.
2. The temperature of the water or brine loop is usually mechanically controlled
within a temperature range of 15.6 C to 35 C.
3. Rated in accordance with the ISO Standard 13256-1.
50RHE GROUND LOOP APPLICATIONS
UNIT
50RHE
006
009
012
015
019
024
030
036
042
048
060
PRESSURE
DROP
kPa
6.8
9.9
34.3
27.0
19.1
23.7
13.9
12.2
16.3
22.3
32.5
LIQUID
FLOW
(L/s)
AIRFLOW
(L/s)
0.069
0.107
0.145
0.164
0.215
0.284
0.347
0.429
0.498
0.568
0.713
81
113
140
212
264
307
349
437
530
630
790
EWT
Cooling 25 C Heating 0° C
TC
COP
TC
COP
1 600 3.9
1 200 3.0
2 200 4.7
1 600 3.3
2 700 3.6
2 200 3.0
4 100 5.3
2 600 3.7
5 300 3.8
3 600 3.1
6 100 3.9
4 400 3.3
6 800 3.8
5 100 3.2
8 500 3.7
6 800 3.3
10 800 4.4
7 500 3.6
12 000 4.1
8 400 3.4
14 500 4.0 11 200 3.3
COP —
EWT —
TC
—
LEGEND
Coefficient of Performance
Entering Water Temperature
Total Capacity (Watts)
NOTES:
1. A water-to-air heat pump using water or brine circulating in a common piping
loop functioning as a heat source/heat sink.
2. The temperature of the water or brine loop is usually mechanically controlled
within a temperature range of –6.7 C to 43.3 C.
3. Rated in accordance with the ISO Standard 13256-1.
50RHE GROUND WATER APPLICATIONS
UNIT
50RHE
006
009
012
015
019
024
030
036
042
048
060
PRESSURE
DROP
kPa
6.8
9.9
34.3
27.0
19.1
23.7
13.9
12.2
16.3
22.3
32.5
LIQUID
FLOW
(L/s)
AIRFLOW
(L/s)
0.069
0.107
0.145
0.164
0.215
0.284
0.347
0.429
0.498
0.568
0.713
81
113
140
212
264
307
349
437
530
630
790
EWT
Cooling 15 C Heating 10 C
TC
COP
TC
COP
1 800 5.3
1 500 3.4
2 500 6.3
2 000 3.8
3 100 4.8
2 800 3.4
4 500 6.8
3 100 4.2
5 900 4.8
4 800 3.6
6 800 5.0
5 700 3.7
7 400 4.9
6 400 3.7
9 300 4.6
8 700 3.7
12 200 5.8
9 500 4.0
13 100 5.2 11 400 3.7
15 900 5.2 13 800 3.8
COP —
EWT —
TC
—
LEGEND
Coefficient of Performance
Entering Water Temperature
Total Capacity (Watts)
NOTES:
1. A water-to-air heat pump using water pumped from a well, lake or stream
functioning as a heat source/heat sink.
2. The temperature of the water is related to the climatic conditions and may
vary from 4.4 C to 26.7 C.
3. Rated in accordance with the ARI/ISO Standard 13256-1.
*International Organization for Standardization.
ISO capacity notes
1. Cooling capacities based upon 27 C DB (dry bulb),
19 C WB (wet bulb) entering-air temperature.
2. Heating capacities based upon 20 C DB, 15 C WB
entering-air temperature.
3. All ratings based upon operation at lower voltage of
dual voltage rated models.
4. All airflow is rated on high speed.
5
Options and accessories
Factory-installed options
Cupronickel heat exchangers are available for higher
corrosion protection for applications such as open tower,
geothermal, etc. Consult the water quality guidelines for
proper application and selection of this option.
Sound attenuation package (mute package) is available for applications that require especially low noise
levels. With this option, a double application of sound
attenuating material is applied, access panels are double
dampened with 12.7-mm. thick density fiberglass insulation, and a unique application of special dampening
material is applied to the curved portion of the blower. The
mute package, in combination with standard unit noise
reduction features mentioned previously, provides sound
levels and noise reduction to the highest degree.
Extended range is provided to insulate the coaxial coil to
prevent condensation, and therefore potential dripping
problems, in applications where the entering water temperature is below the normal operating range (less than
15.6 C).
High-static blower is available in size 048. This option
provides increased airflow at various static pressure conditions to provide even more flexibility to Carrier’s high
blower performance in the standard offering for each model number.
Deluxe D control system provides the same functions
as the Complete C control system while incorporating
additional flexibility and functions to include:
Thermostat input capabilities — Accommodate emergency
shutdown mode and night setback with override (NSB)
functions. Night setback from low temperature thermostat
with 2-hour override is initiated by a momentary signal
from the thermostat.
Compressor relay staging — Used with dual stage units
(units with 2 compressors and 2 Deluxe D controls) or in
master/slave applications.
Boilerless electric heat control system — Allows automatic
changeover to electric heat at low loop water temperature.
Intelligent reversing valve operation — Minimizes reversing
valve operation for extended life and quiet operation.
Thermostat type select (Y, O or Y, W) — Provides ability to
operate and select heat pump or heat/cool thermostats
(Y, W).
Reversing valve signal select (O or B) — Provides selection
for heat pump O/B thermostats.
Dehumidistat input — Provides operation of fan control for
dehumidification operation.
Multiple units on one thermostat/wall sensor — Provides
for communication for up to three heat pumps on one
thermostat.
Boilerless changeover temperature — Provides selection of
boilerless changeover temperature set point.
Accessory relays — Allow configuration for multiple applications including fan and compressor cycling, digital night
setback (NSB), mechanical night setback, water valve operation, and outside air damper operation.
6
Water circuit options to provide internally mounted
0.045 or 0.054 L/s per kW automatic flow regulating
valves for easier installation.
Two-way motorized control valve can be provided for
applications involving open type systems or variable speed
pumping. This valve will slowly open and close in conjunction with the compressor operation to shut off or turn on
water to the unit.
Field-installed accessories
Carrier’s line of Aquazone™ thermostats are both
attractive and multi-functional, accommodating standalone water source heat pump installations.
Programmable 7-day thermostat — Fully electronic 24-vac
thermostat offers 2-stage heat, 2-stage cool, auto
changeover, 7-day programmable operation with copy
command and 4 settings per day. Other features include
backlit LCD, keypad lockout, no batteries required,
5-minute compressor protection, NEVERLOST™ memory,
3 security levels, temperature display in degrees C or F.
Programmable 7-day light-activated thermostat — Offers
same features as the 7-day programmable thermostat and
includes occupied comfort settings with lights on, unoccupied energy savings with lights off.
Programmable 7-day flush-mount thermostat — Offers
same features as the 7-day programmable thermostat and
includes locking coverplate with tamper proof screws, flush
to wall mount, holiday/vacation programming, set point
limiting, dual point with adjustable deadband, O or B terminal, and optional wall or duct-mounted remote sensor.
Programmable 5-day thermostat — Offers 2-stage heat,
2-stage cool, auto changeover, 5-minute built-in compressor protection, locking cover included, temperature display
in degrees C or F, keypad lockout, backlit display, 5-1-1
programming, O or B terminal, dual set point with adjustable deadband, configurable display, self-prompting program, 4 settings per day.
Non-programmable thermostat — Offers 2 heat stages,
2 cool stages, auto changeover, 5-minute built in compressor protection, locking cover included, temperature display
in degrees C or F, keypad lockout, large display, backlit
display, O or B terminal, dual set point with adjustable
deadband, backplate with terminals.
Loop controller with six stages (2 stages for heating and
4 stages for heat rejection) which includes:
• Loop temperature alarms
• Two pump single loop flow monitoring with the ability
to manually select the lead pump
• One common alarm signal and indicating light and one
audible alarm
• Loop water temperature sensor test circuit
• Functional test simulation from operator keypad
• Real timeclock, industrial noise ratings
• Loop water temperature control switch.
• Loop controller with six stages (2 stages for heating and
4 stages for cooling)
Filter rack (2 in. [50.8 mm]) is available in place of the
standard 1-in. (25.4 mm) return air filter to enhance the filtration system of the water source heat pump. The 2-in. filter rack does not include filters.
CARRIER AQUAZONE™ THERMOSTATS
Carrier
®
Pm
COOL
AUTO
HEAT
7-DAY PROGRAMMABLE/LIGHT-ACTIVATED
PROGRAMMABLE
7-DAY PROGRAMMABLE FLUSH MOUNT
R
COOL
AUTO
HEAT
5-DAY PROGRAMMABLE/NON-PROGRAMMABLE
Physical data
AQUAZONE 50RHE006-060 UNITS
UNIT 50RHE
COMPRESSOR (1 each)
FACTORY CHARGE R-407C (kg)
PSC FAN MOTOR AND BLOWER
Fan Motor Type/Speeds
Fan Motor (Hp) [w]
Blower Wheel Size (D x W) (mm)
WATER CONNECTION SIZE (in.) (FPT)
HORIZONTAL
Air Coil
Dimensions (H x W) (mm)
Total Face Area (m2)
Tube Size (mm)
Distance Between Fins (mm)
Number of Rows
Filter Standard 25.4-mm Throwaway
(Qty — Size, mm)
Weight (kg)
Operating
Packaged
006
0.34
009
012
Rotary
0.37
0.37
015
019
024
0.68
0.88
0.91
030
036
Reciprocating
1.19
1.36
042
048
1.19
1.59
PSC/3
PSC/3
PSC/3
PSC/3
PSC/3
PSC/3
PSC/3
PSC/3
PSC/3
PSC/3
1/ [30]
1/ [75]
1/
1/ [124]
1/ [150]
1/ [250]
1/ [373]
3/ [560]
3/ [560]
3/ [560]
25
10
10 [75]
6
5
3
2
4
4
4
127 x 127 127 x 127 152 x 127 152 x 127 152 x 127 152 x 127 152 x 127 254 x 254 254 x 254 254 x 254
1/
1/
3/
3/
3/
3/
3/
1/2
1
1
2
2
4
4
4
4
4
254 x 406
0.103
9.5
2.2
2
3
1 — 254 x 508
50.0
54.5
50.9
55.5
55.0
59.5
66.8
71.4
406 x 406
0.165
9.5
2.2
3
457 x 559
0.255
9.5
2.2
3
457 x 787
0.360
9.5
2.2
3
1 — 406 x 508
1 — 457 x 610
2 — 457 x 457
76.8
81.4
87.7
92.3
99.5
105.0
104.1
109.5
116.8
122.3
121.4
126.8
060
Scroll
2.41
PSC/3
1 [746]
279 x 254
1
508 x 889
0.452
9.5
2.7
4
1 — 305 x 508
1 — 635 x 508
146.8
153.6
LEGEND
PSC — Permanent Split Capacitor
NOTES:
1. All units have spring compressor mountings, TXV (thermostatic expansion
valve) expansion devices, and 1/2- and 3/4-in. electrical knockouts.
2. Size 048 available as high-static unit.
7
Dimensions
WATER
CONNECTIONS
OVERALL
CABINET
50RHE
UNITS
A
B
C
Width Depth Height
006-012
015-024
030
036
042-048
060
in.
cm
in.
cm
in.
cm
in.
cm
in.
cm
in.
cm
22.4
56.8
22.4
56.8
22.4
56.8
22.4
56.8
22.4
56.8
25.4
64.5
43.1
109.5
43.1
109.5
53.2
135.1
53.2
135.1
62.2
158.0
71.2
180.8
11.3
28.7
17.3
43.9
19.3
49.0
19.3
49.0
19.3
49.0
21.3
54.1
1
2
3
D
In
E
Out
2.4
6.1
2.4
6.1
2.4
6.1
2.4
6.1
2.4
6.1
2.4
6.1
5.4
13.7
4.9
12.4
5.4
13.7
5.4
13.7
5.4
13.7
5.4
13.7
F
Condensate
0.6
1.5
0.6
1.5
0.6
1.5
0.6
1.5
0.6
1.5
0.6
1.5
ELECTRICAL KNOCKOUTS (in.)
Loop
Water
FPT
(in.)
1/
J
2 conduit
1/
K
2 conduit
3/
DISCHARGE CONNECTION
Duct Flange Installed (±0.10 in.)
L
4 conduit
Low
Voltage
Ext
Pump
Power
Supply
M
N
3.5
8.9
3.5
8.9
5.7
14.5
5.7
14.5
5.7
14.5
8.1
20.6
5.5
14.0
7.5
19.1
9.7
24.6
9.7
24.6
9.7
24.6
11.7
29.7
8.2
20.8
10.2
25.9
12.2
31.0
12.2
31.0
12.2
31.0
14.2
36.1
5.8
14.7
5.0
12.7
5.0
12.7
2.9
7.4
2.9
7.4
5.8
14.7
4.0
10.2
5.6
14.2
6.8
17.3
3.8
9.7
3.8
9.7
5.0
12.7
1 /2
3 /4
3 /4
3 /4
1
1
O
P
Supply Supply
Height Depth
5.8
8.0
14.7
20.3
10.4
9.3
26.4
23.6
10.4
9.3
26.4
23.6
13.5
13.1
34.3
33.3
13.5
13.1
34.3
33.3
13.6
13.3
34.5
33.8
RETURN CONNECTION
Using Return Air Opening
Q
R
5.8
14.7
5.0
12.7
5.0
12.7
2.9
7.4
2.9
7.4
5.8
14.7
1.5
3.8
1.5
3.8
2.1
5.3
1.9
4.8
1.9
4.8
2.9
7.4
S
Return
Depth
17.1
43.4
17.1
43.4
23.1
58.7
23.1
58.7
32.1
81.5
36.1
91.7
T
Return
Height
9.3
23.6
15.3
38.9
17.3
43.9
17.3
43.9
17.3
43.9
19.3
49.0
U
V
2.2
5.6
2.2
5.6
2.2
5.6
2.2
5.6
2.2
5.6
2.2
5.6
1.0
2.5
1.0
2.5
1.0
2.5
1.0
2.5
1.0
2.5
1.0
2.5
NOTES:
1. Condensate is 3/4-in. FPT copper.
2. Horizontal unit shipped with filter bracket only. This bracket should be removed for return duct connection.
3. Hanger kit is factory installed. Isolation grommets are provided.
4. Right and left orientation is determined by looking at water connection side (front).
LEFT RETURN
2’ [61cm]
Service
Access *
CSP Optional 2’ [61cm]
Service Access *
Front
RIGHT RETURN
Legend
CAP=Control Access Panel
CSP=Compressor Service Panel
BSP=Blower Service Panel
ASP=Alternate Service Panel
Optional 2’ [61cm]
Service Access *
Left Return
Right Return
Power Supply
3 / 4” Knockout
1 / 2”
Knockout
3.25
[82.6mm]
ASP
2’ [61cm] Service
Access *
Front
CSP
3.25
[82.6mm]
Low Voltage
1 / 2” Knockout
L
Right
Discharge
5
K
F
CAP
J
F
2
Condensate
Back
3 / 4” FPT
Discharge
Left
Discharge
3
E
1
D
Condensate
3 / 4” FPT
A
Front-View
Back
Discharge
O
Blower
Outlet
C
Y
R
MODEL
006-024
030-036
042-048
060
Y
Z
IN
CM
IN
CM
IN
CM
43.1
53.1
62.1
71.1
109.5
134.9
157.7
180.6
24.4
24.4
24.4
27.4
61.9
61.9
61.9
69.5
20.4
20.4
20.4
23.4
51.8
51.8
51.8
59.4
C
Z
A
Air Coil Side
BSP
X
Front
P
Air Coil Side
Unit Hanger Detail
Q
P
R
Blower
Outlet
O
BSP
Q
A
X
Left Return Back Discharge
P
M
Blower
Outlet
O
Right Return Back Discharge
N
ASP
BSP
P
BSP
Blower
Outlet
CSP
O
N
Front
Front
V
U
S
Air Coil
Air Coil
1
[27.9mm]
S
CSP
C T
C
Front
B
Left Return Left View Air Coil Opening
Right Return Left Discharge
M
Left Return Right Discharge
ASP
V
U
T
Front
B
Right Return Right View Air Coil Opening
* Note: Shaded areas are recommended service areas, not required.
8
Selection procedure (with 50RHE024 example)
I Determine the actual cooling and heating
loads at the desired dry bulb and wet bulb
conditions.
Assume cooling load at desired dry bulb 27 C and
wet bulb 17 C conditions are as follows:
Given:
Total Cooling (TC). . . . . . . . . . . . . . . . . . .5.4 kW
Sensible Cooling (SC) . . . . . . . . . . . . . . . .4.3 kW
Entering-Air Temperature db . . . . . . . . . . . . 27 C
Entering-Air Temperature wb . . . . . . . . . . . . 17 C
II Determine the following design parameters.
Entering water temperature, water flow rate (l/s),
airflow (l/s), water flow pressure drop and design
wet and dry bulb temperatures. Airflow l/s should be
between 40 and 60 l/s per kW. For applications
using multiple units, the unit water pressure drop
should be kept as close as possible across unit to
make water balancing easier. Enter the 50RHE024
Performance Data tables and find the proper indicated water flow and water temperature.
For example:
Entering Water Temp . . . . . . . . . . . . . . . . . 30 C
Water Flow (Based upon
6.7 C rise in temp) . . . . . . . . . . . . . . . . 0.284 l/s
Airflow. . . . . . . . . . . . . . . . . . . . . . . . . . .230 l/s
III Select a unit based on total cooling and total
sensible cooling conditions. Unit selected
should be closest to but not larger than the
actual cooling load.
Enter tables at the design water flow and water
temperature. Read the total and sensible cooling
capacities.
NOTE: Interpolation is permissible, extrapolation is
not.
For example:
Enter the 50RHE024 Performance Table at design
water flow and water temperature. Read Total
Cooling, Sensible Cooling and Heat of Rejection
capacities:
Total Cooling . . . . . . . . . . . . . . . . . . . . . .5.6 kW
Sensible Cooling . . . . . . . . . . . . . . . . . . . 4.4 kW
Heat of Rejection . . . . . . . . . . . . . . . . . . .7.3 kW
Read the Heat Capacity. If the Heat Capacity
exceeds the design criteria, it is acceptable.
NOTE: It is quite normal for water source heat
pumps to be selected on cooling capacity only since
the heating output is usually greater than the cooling
capacity.
IV Determine the correction factors associated
with the variable factors of dry bulb and wet
bulb using the Corrections Factor tables
found in this book.
Using the following formulas to determine the correction factors of dry bulb and wet bulb:
a) Corrected Total Cooling = tabulated total cooling
x wet bulb correction x airflow correction.
b) Corrected Sensible Cooling = tabulated sensible
cooling x wet/dry bulb correction x airflow
correction
V Determine entering air and airflow correction
using the Corrections Factor tables found in
this book.
The nominal airflow for 50RHE024 is 307 l/s. The
design parameter is 230 l/s.
230/307 = 75% of nominal airflow.
Use the 75% row in the Nominal Cfm Correction
table.
The Entering Air Temperature wb is 17 C. Use the
17 C row in the Entering Air Correction table.
Using the following formulas to determine the correction factors of entering air and airflow correction:
Table
Corrected
Total Cooling
=
Corrected
Sensible Cooling =
Corrected
Heat of Rejection =
Ent Air
Airflow
Corrected
5.6
x 0.956 x 0.954 =
5.1
4.4
x 1.142 x 0.863 =
4.3
7.3
x 0.963 x 0.954 =
6.7
Compare the corrected capacities to the load
requirements established in Step I. If the capacities
are within 10% of the load requirements, the equipment is acceptable. It is better to undersize than
oversize as undersizing improves humidity control,
reduces sound levels and extends the life of the
equipment.
VI Water temperature rise calculation and
assessment.
Calculate the water temperature rise and assess the
selection using the following calculation:
Actual Temperature = Correction of Heat Rejection
Rise
l/s x 4.16
For example, using the Corrected Heat of Rejection
from the last step:
Actual Temperature =
Rise
6.7
0.284 x 4.16
=
5.7 C
If the units selected are not within 10% of the load
calculations, review what effect changing the liquid
flow rate, water temperature and/or airflow will
have on the corrected capacities. If the desired
capacity cannot be achieved, select the next larger
or smaller unit and repeat Steps I through VI.
9
Performance data
50RHE006
81 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
10
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
0.050
0.069
0.095
PRESSURE
DROP
(kPa)
6.0
8.4
14.4
5.8
8.2
13.9
5.6
7.9
13.5
5.4
7.7
13.0
5.3
7.4
12.6
5.1
7.2
12.2
5.0
7.0
11.9
4.8
6.8
11.5
4.7
6.6
11.2
4.6
6.5
11.0
4.8
6.2
11.0
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
2.0
2.1
2.1
1.9
2.0
2.0
1.8
1.9
1.9
1.7
1.8
1.8
1.6
1.7
1.7
1.5
1.6
1.6
1.4
1.5
1.5
1.3
1.4
1.4
1.2
1.2
1.3
1.1
1.1
1.2
1.4
1.4
1.4
1.3
1.3
1.4
1.3
1.3
1.3
1.3
1.3
1.3
1.2
1.3
1.3
1.2
1.2
1.2
1.1
1.2
1.2
1.1
1.1
1.1
1.0
1.0
1.1
1.0
1.0
1.0
0.30
0.29
0.29
0.33
0.31
0.30
0.36
0.34
0.33
0.39
0.37
0.36
0.42
0.40
0.39
0.46
0.44
0.43
0.49
0.47
0.46
0.53
0.51
0.50
0.56
0.54
0.53
0.58
0.57
0.56
2.3
2.3
2.4
2.3
2.3
2.3
2.2
2.2
2.3
2.1
2.2
2.2
2.1
2.1
2.1
2.0
2.0
2.0
1.9
1.9
2.0
1.8
1.9
1.9
1.7
1.8
1.8
1.6
1.7
1.7
TC
(kW)
Power
Input
(kW)
THA
(kW)
1.1
1.1
1.2
1.2
1.2
1.3
1.3
1.4
1.4
1.5
1.5
1.6
1.6
1.7
1.7
1.8
1.8
1.9
2.0
2.0
2.0
2.1
2.1
0.40
0.40
0.41
0.42
0.42
0.43
0.43
0.43
0.44
0.45
0.45
0.46
0.46
0.47
0.47
0.48
0.48
0.49
0.49
0.50
0.50
0.51
0.51
0.7
0.7
0.8
0.8
0.8
0.9
0.9
0.9
1.0
1.0
1.1
1.1
1.2
1.2
1.3
1.3
1.4
1.4
1.5
1.5
1.5
1.6
1.6
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
50RHE009
113 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
0.069
0.107
0.139
PRESSURE
DROP
(kPa)
8.2
12.3
24.6
7.9
11.9
23.8
7.7
11.5
23.1
7.4
11.2
22.3
7.2
10.8
21.6
7.0
10.5
20.9
6.8
10.2
20.3
6.6
9.9
19.8
6.4
9.7
19.3
6.3
9.5
18.9
6.2
9.7
18.6
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
2.8
2.9
2.9
2.7
2.8
2.8
2.6
2.7
2.7
2.4
2.5
2.6
2.3
2.4
2.4
2.1
2.2
2.3
2.0
2.1
2.1
1.8
1.9
1.9
1.6
1.7
1.8
1.5
1.6
1.6
1.8
1.8
1.8
1.7
1.7
1.8
1.7
1.7
1.7
1.6
1.7
1.7
1.6
1.6
1.6
1.5
1.6
1.6
1.5
1.5
1.5
1.4
1.4
1.4
1.3
1.4
1.4
1.2
1.3
1.3
0.36
0.35
0.34
0.39
0.37
0.36
0.42
0.40
0.39
0.46
0.43
0.42
0.49
0.47
0.46
0.53
0.51
0.50
0.57
0.55
0.54
0.61
0.59
0.58
0.65
0.63
0.62
0.69
0.67
0.66
3.2
3.3
3.3
3.1
3.2
3.2
3.0
3.1
3.1
2.9
3.0
3.0
2.8
2.8
2.9
2.6
2.7
2.8
2.5
2.6
2.6
2.4
2.5
2.5
2.3
2.4
2.4
2.2
2.2
2.3
TC
(kW)
Power
Input
(kW)
THA
(kW)
1.5
1.5
1.6
1.6
1.7
1.8
1.8
1.9
2.0
2.0
2.1
2.2
2.3
2.3
2.4
2.5
2.5
2.6
2.7
2.7
2.8
2.8
2.9
0.49
0.49
0.50
0.51
0.51
0.52
0.53
0.53
0.55
0.55
0.56
0.57
0.58
0.58
0.59
0.60
0.61
0.62
0.63
0.63
0.64
0.64
0.65
1.0
1.0
1.1
1.1
1.2
1.2
1.3
1.3
1.4
1.5
1.5
1.6
1.7
1.7
1.8
1.9
1.9
2.0
2.0
2.1
2.1
2.2
2.2
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
11
Performance data (cont)
50RHE012
140 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
12
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.145
0.189
0.095
0.158
0.189
PRESSURE
DROP
(kPa)
19.7
42.7
68.1
19.1
41.3
65.9
18.4
40.0
63.8
17.9
38.7
61.7
17.3
37.5
59.8
16.8
36.3
57.9
16.3
35.2
56.2
15.8
34.3
54.7
15.4
33.4
53.4
15.1
32.8
52.3
10.3
23.4
51.7
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
3.5
3.6
3.7
3.3
3.4
3.5
3.1
3.3
3.3
3.0
3.1
3.1
2.8
2.9
2.9
2.6
2.7
2.8
2.4
2.5
2.6
2.2
2.3
2.3
2.0
2.1
2.1
1.8
1.9
1.9
2.4
2.5
2.5
2.4
2.4
2.4
2.3
2.4
2.4
2.2
2.3
2.3
2.2
2.2
2.2
2.1
2.1
2.2
2.0
2.1
2.1
1.9
2.0
2.0
1.8
1.9
1.9
1.7
1.7
1.8
0.57
0.54
0.53
0.61
0.58
0.57
0.66
0.62
0.61
0.71
0.67
0.66
0.76
0.73
0.71
0.82
0.78
0.77
0.88
0.85
0.83
0.95
0.91
0.89
1.02
0.98
0.96
1.10
1.05
1.04
4.1
4.1
4.2
3.9
4.0
4.1
3.8
3.9
3.9
3.7
3.8
3.8
3.5
3.6
3.7
3.4
3.5
3.5
3.3
3.3
3.4
3.1
3.2
3.2
3.0
3.1
3.1
2.9
2.9
3.0
TC
(kW)
Power
Input
(kW)
THA
(kW)
2.0
2.0
2.2
2.2
2.2
2.4
2.5
2.5
2.7
2.8
2.8
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.7
3.8
3.9
3.9
0.73
0.73
0.74
0.75
0.76
0.78
0.79
0.79
0.82
0.83
0.84
0.86
0.88
0.89
0.90
0.92
0.93
0.94
0.96
0.97
0.98
0.99
0.99
1.3
1.3
1.4
1.5
1.5
1.6
1.7
1.7
1.9
2.0
2.0
2.1
2.2
2.3
2.4
2.5
2.5
2.6
2.7
2.8
2.8
2.9
2.9
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
50RHE015
212 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
0.113
0.164
0.221
PRESSURE
DROP
(kPa)
17.2
33.6
57.4
16.7
32.6
55.6
16.1
31.5
53.8
15.6
30.5
52.1
15.1
29.5
50.4
14.7
28.6
48.8
14.2
27.8
47.4
13.8
27.0
46.1
13.5
26.3
45.0
13.2
25.8
44.0
6.9
19.3
43.4
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
4.7
4.7
4.8
4.6
4.6
4.7
4.4
4.5
4.6
4.3
4.4
4.4
4.1
4.2
4.3
3.9
4.0
4.1
3.7
3.8
3.9
3.4
3.6
3.7
3.2
3.3
3.4
2.8
3.0
3.1
3.2
3.2
3.3
3.2
3.2
3.2
3.1
3.2
3.2
3.1
3.1
3.1
3.0
3.1
3.1
3.0
3.0
3.0
2.9
2.9
3.0
2.8
2.8
2.9
2.7
2.7
2.8
2.5
2.6
2.7
0.56
0.52
0.49
0.62
0.58
0.56
0.68
0.64
0.62
0.74
0.70
0.68
0.80
0.76
0.74
0.87
0.83
0.80
0.95
0.90
0.88
1.04
0.99
0.96
1.14
1.08
1.05
1.26
1.19
1.15
5.2
5.2
5.3
5.2
5.2
5.2
5.1
5.2
5.2
5.0
5.1
5.1
4.9
5.0
5.0
4.8
4.9
4.9
4.6
4.7
4.8
4.5
4.6
4.6
4.3
4.4
4.5
4.1
4.2
4.3
TC
(kW)
Power
Input
(kW)
THA
(kW)
2.5
2.5
2.6
2.6
2.7
2.8
2.9
2.9
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.9
3.9
4.1
4.2
4.3
4.4
4.5
4.6
0.74
0.74
0.75
0.75
0.75
0.77
0.77
0.78
0.79
0.80
0.80
0.82
0.83
0.83
0.85
0.86
0.86
0.87
0.88
0.89
0.90
0.90
0.91
1.7
1.7
1.8
1.9
1.9
2.1
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.6
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
13
Performance data (cont)
50RHE019
264 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
14
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
0.145
0.214
0.284
PRESSURE
DROP
(kPa)
13.1
23.8
46.8
12.7
23.0
45.3
12.3
22.3
43.8
11.9
21.6
42.4
11.5
20.9
41.1
11.2
20.2
39.8
10.9
19.6
38.6
10.6
19.1
37.6
10.3
18.6
36.6
10.1
18.3
35.9
9.7
17.9
35.2
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
6.5
6.8
6.9
6.2
6.5
6.6
5.9
6.2
6.3
5.6
5.9
6.0
5.3
5.5
5.7
4.9
5.2
5.3
4.6
4.8
5.0
4.2
4.4
4.6
3.7
4.0
4.1
3.2
3.5
3.6
4.4
4.6
4.6
4.3
4.4
4.5
4.2
4.3
4.3
4.1
4.1
4.2
4.0
4.0
4.1
3.9
3.9
4.0
3.7
3.8
3.9
3.5
3.7
3.7
3.3
3.5
3.5
3.0
3.2
3.3
1.09
1.01
0.97
1.18
1.11
1.07
1.26
1.19
1.16
1.34
1.28
1.25
1.42
1.36
1.33
1.50
1.44
1.41
1.58
1.53
1.50
1.67
1.61
1.58
1.76
1.71
1.68
1.86
1.81
1.77
7.6
7.8
7.9
7.4
7.6
7.7
7.2
7.4
7.5
7.0
7.1
7.2
6.7
6.9
7.0
6.4
6.6
6.7
6.2
6.4
6.5
5.8
6.0
6.1
5.5
5.7
5.8
5.1
5.3
5.4
TC
(kW)
Power
Input
(kW)
THA
(kW)
3.3
3.3
3.6
3.7
3.7
4.0
4.2
4.3
4.6
4.8
5.0
5.2
5.5
5.7
5.9
6.2
6.3
6.5
6.8
6.9
7.0
7.2
7.3
1.17
1.17
1.20
1.21
1.22
1.27
1.29
1.31
1.35
1.38
1.40
1.44
1.48
1.50
1.53
1.57
1.60
1.61
1.65
1.67
1.68
1.70
1.71
2.2
2.2
2.4
2.5
2.5
2.8
2.9
3.0
3.3
3.5
3.6
3.8
4.0
4.1
4.3
4.6
4.7
4.8
5.1
5.2
5.3
5.5
5.6
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
50RHE024
307 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
0.189
0.284
0.378
PRESSURE
DROP
(kPa)
13.9
29.5
49.2
13.5
28.6
47.7
13.1
27.7
46.1
12.6
26.8
44.6
12.2
25.9
43.2
11.9
25.1
41.9
11.5
24.4
40.6
11.2
23.7
39.5
11.0
23.1
38.6
10.7
22.6
37.8
22.1
28.3
37.2
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
7.5
7.8
8.0
7.1
7.4
7.6
6.8
7.0
7.2
6.5
6.7
6.8
6.1
6.3
6.5
5.8
6.0
6.1
5.4
5.6
5.7
4.9
5.2
5.3
4.4
4.7
4.8
3.8
4.1
4.3
5.3
5.3
5.3
5.2
5.3
5.3
5.0
5.1
5.2
4.8
5.0
5.0
4.7
4.8
4.8
4.5
4.6
4.7
4.3
4.4
4.5
4.2
4.3
4.3
4.0
4.1
4.1
3.8
3.9
3.9
1.19
1.12
1.08
1.29
1.22
1.18
1.38
1.32
1.28
1.48
1.41
1.38
1.58
1.51
1.48
1.68
1.61
1.58
1.78
1.72
1.68
1.89
1.82
1.79
2.00
1.94
1.90
2.11
2.05
2.02
8.7
8.9
9.1
8.4
8.6
8.7
8.2
8.3
8.4
7.9
8.1
8.2
7.7
7.9
7.9
7.4
7.6
7.7
7.1
7.3
7.4
6.8
7.0
7.1
6.4
6.6
6.7
5.9
6.2
6.3
TC
(kW)
Power
Input
(kW)
THA
(kW)
3.8
3.9
4.3
4.5
4.6
5.0
5.2
5.3
5.6
5.8
5.9
6.2
6.5
6.6
6.8
7.1
7.2
7.4
7.7
7.8
7.9
8.2
8.3
1.27
1.28
1.37
1.40
1.41
1.48
1.51
1.53
1.58
1.61
1.63
1.67
1.70
1.72
1.75
1.78
1.80
1.82
1.86
1.87
1.89
1.92
1.94
2.6
2.6
3.0
3.1
3.2
3.5
3.6
3.7
4.0
4.2
4.3
4.5
4.8
4.9
5.1
5.3
5.4
5.6
5.8
5.9
6.0
6.3
6.4
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
15
Performance data (cont)
50RHE030
349 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
16
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
0.239
0.347
0.473
PRESSURE
DROP
(kPa)
10.0
17.3
27.8
9.7
16.8
26.9
9.4
16.2
26.1
9.1
15.7
25.2
8.8
15.2
24.4
8.5
14.7
23.7
8.3
14.3
23.0
8.1
13.9
22.3
7.9
13.6
21.8
7.7
13.3
21.3
7.6
13.1
21.4
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
7.9
8.0
8.0
7.7
7.8
7.9
7.4
7.6
7.6
7.1
7.3
7.4
6.8
7.0
7.1
6.4
6.6
6.8
6.0
6.2
6.4
5.6
5.8
5.9
5.1
5.3
5.5
4.5
4.8
4.9
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.2
5.3
5.3
5.1
5.2
5.2
5.0
5.1
5.1
4.8
4.9
5.0
4.6
4.7
4.8
4.4
4.5
4.6
4.0
4.2
4.3
1.36
1.30
1.27
1.46
1.40
1.36
1.58
1.51
1.47
1.71
1.64
1.60
1.84
1.77
1.72
1.97
1.90
1.86
2.11
2.04
2.00
2.25
2.18
2.14
2.38
2.32
2.28
2.51
2.46
2.42
9.2
9.3
9.3
9.1
9.2
9.2
9.0
9.1
9.1
8.8
8.9
9.0
8.6
8.7
8.8
8.4
8.5
8.6
8.1
8.3
8.4
7.8
8.0
8.1
7.5
7.6
7.7
7.0
7.2
7.3
TC
(kW)
Power
Input
(kW)
THA
(kW)
4.8
4.8
5.1
5.2
5.3
5.7
5.8
5.9
6.3
6.5
6.7
7.1
7.3
7.5
7.8
8.0
8.2
8.4
8.7
8.8
9.0
9.1
9.2
1.56
1.57
1.65
1.68
1.69
1.75
1.78
1.79
1.84
1.87
1.88
1.92
1.95
1.96
2.00
2.02
2.03
2.06
2.08
2.10
2.11
2.14
2.15
3.2
3.3
3.4
3.5
3.6
3.9
4.0
4.1
4.5
4.7
4.8
5.1
5.4
5.5
5.8
6.0
6.2
6.4
6.6
6.7
6.8
7.0
7.0
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
50RHE036
431 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
0.284
0.429
0.568
PRESSURE
DROP
(kPa)
8.0
15.3
24.7
7.8
14.8
23.9
7.5
14.3
23.1
7.3
13.8
22.4
7.1
13.4
21.7
6.8
13.0
21.0
6.6
12.6
20.4
6.5
12.2
19.8
6.3
11.9
19.4
6.2
11.7
19.0
6.2
11.7
18.6
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
9.9
10.1
10.2
9.6
9.8
9.9
9.3
9.5
9.6
8.9
9.1
9.3
8.5
8.8
8.9
8.1
8.4
8.5
7.6
7.9
8.0
7.0
7.3
7.5
6.3
6.7
6.9
5.5
5.9
6.1
6.8
7.0
7.0
6.7
6.8
6.8
6.6
6.7
6.7
6.5
6.5
6.6
6.4
6.4
6.5
6.3
6.3
6.4
6.2
6.2
6.3
6.0
6.1
6.2
5.8
6.0
6.0
5.5
5.7
5.8
1.81
1.73
1.70
1.93
1.85
1.81
2.06
1.97
1.93
2.20
2.11
2.07
2.34
2.25
2.21
2.49
2.40
2.36
2.64
2.55
2.51
2.79
2.71
2.66
2.95
2.86
2.82
3.10
3.02
2.98
11.7
11.8
11.9
11.5
11.6
11.7
11.3
11.5
11.5
11.1
11.3
11.3
10.9
11.0
11.1
10.6
10.8
10.9
10.2
10.4
10.5
9.8
10.0
10.2
9.2
9.5
9.7
8.6
9.0
9.1
TC
(kW)
Power
Input
(kW)
THA
(kW)
6.0
6.1
6.7
6.9
7.0
7.6
7.8
8.0
8.5
8.8
9.0
9.4
9.7
9.9
10.3
10.7
10.9
11.2
11.7
11.9
12.1
12.6
12.9
2.06
2.07
2.14
2.17
2.19
2.26
2.30
2.33
2.40
2.45
2.48
2.55
2.61
2.64
2.69
2.75
2.78
2.82
2.88
2.91
2.94
2.99
3.01
3.9
4.0
4.5
4.7
4.8
5.3
5.5
5.7
6.1
6.3
6.5
6.8
7.1
7.3
7.6
7.9
8.1
8.4
8.8
9.0
9.2
9.6
9.9
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
17
Performance data (cont)
50RHE042
530 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
18
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
0.334
0.498
0.662
PRESSURE
DROP
(kPa)
10.2
20.3
32.2
9.8
19.6
31.1
9.5
19.0
30.1
9.2
18.4
29.2
8.9
17.8
28.2
8.7
17.2
27.4
8.4
16.7
26.6
8.2
16.3
25.9
8.0
15.9
25.2
7.8
15.6
24.7
6.2
11.7
18.6
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
11.8
11.9
12.0
12.2
12.3
12.5
12.2
12.3
12.5
11.9
12.0
12.1
11.3
11.4
11.5
10.5
10.6
10.7
9.6
9.7
9.8
8.7
8.8
8.9
7.9
8.0
8.1
7.2
7.3
7.4
8.2
8.2
8.3
8.6
8.6
8.7
8.8
8.8
8.9
8.8
8.8
8.9
8.6
8.7
8.7
8.3
8.4
8.4
8.0
8.1
8.1
7.7
7.7
7.8
7.4
7.4
7.4
7.1
7.2
7.2
1.80
1.75
1.69
1.96
1.90
1.84
2.14
2.07
2.00
2.31
2.24
2.17
2.50
2.42
2.34
2.69
2.60
2.51
2.88
2.78
2.68
3.07
2.96
2.86
3.26
3.15
3.03
3.45
3.32
3.20
13.6
13.7
13.7
14.2
14.2
14.3
14.3
14.4
14.5
14.2
14.2
14.3
13.8
13.8
13.9
13.2
13.2
13.2
12.5
12.5
12.5
11.8
11.8
11.8
11.2
11.1
11.1
10.7
10.6
10.6
TC
(kW)
Power
Input
(kW)
THA
(kW)
6.8
6.9
7.5
7.7
7.8
8.4
8.6
8.9
9.4
9.6
9.9
10.3
10.6
10.9
11.1
11.4
11.7
11.8
12.1
12.5
12.3
12.6
13.0
2.06
2.09
2.19
2.22
2.25
2.33
2.36
2.40
2.46
2.49
2.54
2.57
2.61
2.65
2.66
2.70
2.76
2.73
2.77
2.84
2.78
2.82
2.90
4.8
4.8
5.3
5.5
5.6
6.1
6.3
6.5
6.9
7.1
7.4
7.7
8.0
8.2
8.5
8.7
9.0
9.1
9.4
9.6
9.5
9.8
10.1
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
50RHE048
630 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
0.378
0.567
0.756
PRESSURE
DROP
(kPa)
14.5
27.8
45.1
14.1
26.9
43.7
13.6
26.1
42.3
13.2
25.2
40.9
12.7
24.4
39.6
12.3
23.7
38.4
12.0
23.0
37.3
11.7
22.3
36.2
11.4
21.8
35.4
11.1
21.3
34.6
6.2
11.7
18.6
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
13.7
13.9
13.9
13.5
13.7
13.7
13.1
13.4
13.5
12.6
13.0
13.1
12.1
12.5
12.6
11.5
11.9
12.1
10.8
11.2
11.4
10.0
10.5
10.7
9.2
9.7
9.9
8.2
8.7
9.0
9.7
9.7
9.8
9.6
9.7
9.7
9.5
9.6
9.6
9.4
9.4
9.5
9.2
9.3
9.4
9.0
9.2
9.2
8.8
9.0
9.0
8.6
8.7
8.8
8.2
8.4
8.5
7.8
8.0
8.2
2.10
1.93
1.83
2.32
2.18
2.10
2.52
2.39
2.32
2.71
2.59
2.52
2.92
2.78
2.72
3.14
3.00
2.93
3.40
3.24
3.16
3.72
3.53
3.44
4.10
3.88
3.77
4.57
4.30
4.17
15.8
15.8
15.8
15.8
15.8
15.8
15.6
15.7
15.8
15.4
15.5
15.6
15.0
15.3
15.4
14.6
14.9
15.0
14.2
14.5
14.6
13.7
14.0
14.2
13.3
13.5
13.7
12.8
13.0
13.2
TC
(kW)
Power
Input
(kW)
THA
(kW)
7.1
7.3
8.2
8.5
8.7
9.6
10.0
10.2
11.0
11.5
11.8
12.4
13.0
13.3
13.8
14.4
14.7
15.1
15.6
15.9
16.1
16.6
16.7
2.28
2.31
2.50
2.57
2.61
2.78
2.86
2.90
3.04
3.13
3.18
3.29
3.38
3.43
3.51
3.60
3.65
3.71
3.79
3.84
3.87
3.94
3.98
4.9
5.0
5.7
5.9
6.1
6.8
7.1
7.3
8.0
8.4
8.6
9.2
9.6
9.9
10.3
10.8
11.0
11.4
11.8
12.0
12.2
12.6
12.8
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
19
Performance data (cont)
50RHE060
790 L/S NOMINAL AIRFLOW
EWT (C)
–5
0
5
10
15
20
25
30
35
40
45
EWT
SC
TC
THA
THR
20
—
—
—
—
—
LIQUID
FLOW
(L/s)
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
0.473
0.713
0.946
PRESSURE
DROP
(kPa)
20.7
40.4
66.4
20.0
39.1
64.3
19.4
37.8
62.2
18.7
36.6
60.2
18.1
35.5
58.3
17.6
34.4
56.5
17.1
33.4
54.8
16.6
32.5
53.3
16.2
31.7
52.0
15.9
31.1
51.0
15.6
30.5
50.1
LEGEND
Entering Water Temperature (C)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
COOLING CAPACITY
TC
(kW)
SC
(kW)
Power
Input
(kW)
HEATING CAPACITY
THR
(kW)
Operation Not Recommended
16.7
16.8
16.9
16.4
16.6
16.7
15.9
16.3
16.4
15.3
15.7
15.9
14.6
15.1
15.3
13.9
14.3
14.6
13.1
13.5
13.8
12.3
12.7
13.0
11.5
11.9
12.1
10.8
11.2
11.4
11.4
11.4
11.5
11.2
11.3
11.4
11.0
11.1
11.2
10.7
10.9
11.0
10.5
10.6
10.7
10.2
10.4
10.4
10.0
10.1
10.2
9.7
9.9
9.9
9.6
9.7
9.7
9.5
9.5
9.6
2.56
2.46
2.42
2.75
2.63
2.57
2.98
2.83
2.76
3.25
3.08
3.00
3.56
3.36
3.27
3.91
3.69
3.59
4.29
4.06
3.94
4.72
4.47
4.34
5.19
4.92
4.79
5.71
5.41
5.27
19.3
19.3
19.3
19.2
19.3
19.3
18.9
19.1
19.2
18.6
18.8
18.9
18.2
18.4
18.6
17.8
18.0
18.1
17.3
17.6
17.7
17.0
17.2
17.3
16.7
16.8
16.9
16.5
16.6
16.6
TC
(kW)
Power
Input
(kW)
THA
(kW)
10.4
10.5
11.0
11.3
11.4
12.1
12.5
12.7
13.5
14.0
14.2
14.9
15.5
15.8
16.3
16.9
17.2
17.6
18.2
18.4
18.7
19.1
19.2
3.23
3.25
3.37
3.42
3.44
3.53
3.58
3.60
3.68
3.72
3.74
3.80
3.85
3.87
3.91
3.95
3.97
4.00
4.04
4.06
4.08
4.12
4.13
7.2
7.3
7.7
7.9
8.0
8.6
9.0
9.1
9.8
10.2
10.5
11.1
11.6
11.9
12.4
13.0
13.2
13.6
14.1
14.4
14.6
15.0
15.1
Operation Not Recommended
NOTES:
1. Interpolation is permissible, extrapolation is not.
2. All entering air conditions are 27 C db (dry bulb) and 19 C wb (wet
bulb) in cooling and 20 C db in heating.
3. All performance data is based upon the lower voltage of dual voltage rated units.
4. Operation below 15 C EWT requires optional insulated water circuit.
5. Operation below 5 C EWT is based upon 15% antifreeze solution.
6. See Correction Factor tables for operating conditions other than
those listed above.
7. Table does not reflect fan or pump power ISO corrections.
CORRECTION FACTORS — AIRFLOW — 50RHE UNITS
% OF
NOMINAL
AIRFLOW
TC
(kW)
75%
81%
88%
94%
100%
106%
113%
0.971
0.979
0.988
0.994
1.000
1.005
1.011
HEATING
Input
Power
(kW)
1.045
1.029
1.015
1.007
1.000
0.995
0.992
COOLING
THA
(kW)
TC
(kW)
SC
(kW)
0.956
0.969
0.982
0.992
1.000
1.007
1.012
0.954
0.966
0.980
0.992
1.000
1.007
1.015
0.863
0.897
0.937
0.968
1.000
1.031
1.065
Input
Power
(kW)
0.961
0.971
0.982
0.990
1.000
1.009
1.019
THR
(kW)
0.954
0.967
0.980
0.992
1.000
1.007
1.016
CORRECTION FACTORS — ENTERING AIR — 50RHE UNITS
EAT. DB
(C)
15
17
20
22
24
26
DB
EAT
kW
SC
TC
THA
THR
WB
—
—
—
—
—
—
—
—
HEATING
Power
TC
Input
(kW)
(kW)
1.002
0.989
1.001
0.993
1.000
1.000
0.999
1.012
0.997
1.014
0.995
1.018
COOLING
Sensible Capacity Entering Dry Bulb (C)
THA
(kW)
EAT WB
(C)
TC
(kW)
21
23
25
27
29.5
32
35
1.008
1.005
1.000
0.997
0.988
0.988
15
17
19
21
23
25
0.910
0.956
1.000
1.073
1.128
1.192
0.864
0.718
0.575
—
—
—
1.007
0.858
0.715
0.570
—
—
1.132
1.002
0.856
0.710
0.563
—
1.200
1.142
1.000
0.851
0.704
0.554
*
1.264
1.176
1.031
0.878
0.730
*
*
*
1.208
1.059
0.907
*
*
*
1.391
1.274
1.127
Power
Input
(kW)
0.984
0.992
1.000
1.011
1.019
1.026
THR
(kW)
0.923
0.963
1.000
1.063
1.110
1.164
LEGEND
Dry Bulb
Entering-Air Temperature (C)
Total Power Input (kilowatts)
Sensible Capacity
Total Capacity
Total Heat of Absorption
Total Heat of Rejection
Wet Bulb
*Sensible capacity equals total capacity.
21
Performance data (cont)
50RHE BLOWER PERFORMANCE
50RHE
UNIT
NOMINAL
AIRFLOW
(L/s)
MINIMUM
AIRFLOW
(L/s)
006
81
61
009
113
85
012
140
104
015
212
160
019
264
198
024
307
231
030
349
264
036
437
326
042
530
396
048
630
472
High Static
048
630
472
060
790
595
FAN
SPEED
LEGEND
Shaded areas are below minimum airflow. This data is
provided for troubleshooting information only.
22
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
HI
MED
LO
0
133
110
98
165
160
151
170
165
146
345
321
293
326
302
293
396
387
368
529
510
458
614
580
505
743
637
498
793
777
762
—
—
—
896
818
748
25
123
99
90
151
146
137
165
151
137
316
302
278
311
288
269
368
359
340
496
477
439
576
543
472
691
593
463
738
723
709
—
—
797
866
803
731
AIRFLOW (L/s)
External Static Pressure (Pa)
50
75
112
89
87
68
60
75
142
118
127
113
123
109
151
137
142
127
127
118
288
250
274
241
255
222
283
250
260
227
245
217
335
302
326
297
311
278
463
425
448
415
406
378
579
463
488
434
429
387
629
566
539
485
421
—
672
604
658
592
645
580
—
757
787
710
748
690
833
796
779
747
709
683
100
78
—
—
99
94
90
123
118
104
198
189
179
203
189
179
260
255
231
378
368
340
415
392
349
501
429
—
535
524
514
668
623
612
755
707
653
125
—
—
—
—
—
—
109
—
—
—
—
—
—
—
—
—
—
—
330
326
297
373
349
—
435
—
—
464
455
446
552
529
516
710
658
618
NOTES:
1. Units factory shipped on medium speed. Other speeds require
field selection.
2. For dual voltage units, airflow is rated at lowest voltage.
3. Performance data shown is based on wet coil and clean air filter.
50RHE UNITS
RADIATED SOUND POWER DATA
DUCTED DISCHARGE
UNIT
50RHE
MODE
FAN ONLY
006
COOLING
HEATING
FAN ONLY
009
COOLING
HEATING
FAN ONLY
012
COOLING
HEATING
FAN ONLY
015
COOLING
HEATING
FAN ONLY
019
COOLING
HEATING
FAN ONLY
024
COOLING
HEATING
FAN ONLY
030
COOLING
HEATING
FAN ONLY
036
COOLING
HEATING
FAN ONLY
042
COOLING
HEATING
FAN ONLY
048
COOLING
HEATING
FAN ONLY
060
COOLING
HEATING
SPEED
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
125
62.5
63.0
62.5
62.8
65.5
65.8
63.0
63.5
63.0
63.3
66.0
66.3
63.5
66.5
64.0
65.5
67.0
68.5
72.5
65.5
72.0
69.2
75.0
72.2
73.0
67.0
73.0
70.6
76.0
73.6
74.0
68.5
73.5
71.3
76.5
74.3
76.5
72.0
81.5
80.2
84.0
82.7
73.5
73.0
79.5
79.4
82.0
81.9
64.0
72.0
71.0
72.6
73.5
75.1
65.0
73.5
72.5
74.2
75.0
76.7
78.5
81.0
78.5
79.0
81.0
81.5
250
59.0
62.0
60.0
61.5
62.5
64.0
59.5
62.5
61.0
62.5
63.5
65.0
60.5
63.5
62.0
63.5
64.5
66.0
58.0
62.0
59.5
61.1
62.0
63.6
58.5
63.0
60.0
61.8
62.5
64.3
59.5
64.5
61.0
63.0
63.5
65.5
64.5
67.5
65.0
65.9
66.5
67.4
65.0
69.5
65.0
66.4
66.5
67.9
59.0
72.0
62.5
65.1
64.0
66.6
60.0
73.0
63.0
65.6
64.5
67.1
74.0
77.5
74.0
74.7
75.5
76.2
Octave Band Frequency, Hz
500
1000
2000
57.0
58.5
54.5
59.0
61.0
57.5
58.0
59.5
55.5
59.0
60.8
57.0
59.2
60.7
56.2
60.2
62.0
57.7
57.5
59.0
55.0
59.5
62.0
58.0
59.0
60.0
56.5
60.0
61.5
58.0
60.2
61.2
57.2
61.2
62.7
58.7
58.5
60.0
56.0
60.5
62.5
58.0
60.0
60.5
57.0
61.0
61.8
58.0
61.2
61.7
57.7
62.2
63.0
58.7
59.5
57.5
54.0
57.5
63.0
58.5
60.5
58.0
55.0
59.7
60.2
56.8
62.3
59.2
55.7
61.5
61.4
57.5
60.5
58.0
55.0
64.0
64.0
60.0
61.5
59.0
56.0
62.9
61.4
58.0
63.6
60.2
56.7
65.0
62.6
58.7
62.0
59.0
56.0
61.0
65.5
61.5
62.5
60.0
57.0
62.1
62.6
59.2
61.9
61.2
57.7
61.5
63.8
59.9
68.0
63.5
62.0
69.0
69.0
65.5
68.0
64.5
62.5
68.3
66.2
63.6
69.0
65.0
62.5
69.3
66.7
63.6
66.5
63.5
61.5
69.5
70.5
66.5
67.5
63.0
61.5
68.4
65.1
63.0
68.5
63.5
61.5
69.4
65.6
63.0
58.5
56.0
52.0
68.5
69.0
65.0
60.5
58.5
55.0
62.5
61.1
57.6
61.5
59.0
55.0
63.5
61.6
57.6
59.5
56.5
53.0
70.0
70.5
66.5
61.0
59.5
56.0
63.1
62.3
58.7
62.0
60.0
56.0
64.1
62.8
58.7
71.5
71.5
69.0
74.5
74.5
72.0
71.0
71.0
68.5
71.6
71.6
69.1
72.0
71.5
68.5
72.6
72.1
69.1
4000
52.0
54.5
53.0
54.3
53.7
55.0
52.5
55.5
53.5
55.0
54.2
55.7
53.0
57.0
54.0
56.0
54.7
56.7
52.0
48.0
53.0
51.4
53.7
52.1
53.0
58.5
53.5
55.7
54.2
56.4
54.0
60.0
55.0
57.4
55.7
58.1
62.0
65.0
62.5
63.4
62.0
62.9
61.0
66.0
60.0
61.5
59.5
61.0
48.5
64.5
51.0
54.2
50.5
53.7
49.0
65.5
52.0
55.3
51.5
54.8
68.5
72.0
68.0
68.7
67.5
68.2
8000
49.5
42.5
49.5
46.0
50.5
47.0
50.0
54.0
50.5
52.5
51.5
53.5
51.5
61.5
51.0
56.0
52.0
57.0
44.5
38.0
45.0
42.4
46.0
43.4
45.0
52.0
46.0
48.8
47.0
49.8
46.0
53.5
46.5
49.5
47.5
50.5
56.5
60.5
57.0
58.2
57.5
58.7
54.5
61.5
54.5
56.6
55.0
57.1
40.5
59.0
44.0
47.7
44.5
48.2
41.5
60.0
45.0
48.7
45.5
49.2
65.0
68.5
64.5
65.2
65.0
65.7
FREE AIR INLET COMBINED WITH RADIATED
CABINET
Octave Band Frequency, Hz
125
250
500
1000
2000
4000
8000
60.5
58.0
52.8
47.0
42.0
35.5
37.0
60.0
59.5
55.0
49.5
44.5
39.5
38.0
61.0
57.5
53.0
47.5
43.0
37.5
36.0
60.7
58.4
54.3
49.0
44.5
39.9
36.6
64.0
60.0
54.3
48.7
43.7
38.2
37.0
63.7
60.9
55.6
50.2
45.2
40.6
37.6
61.5
58.5
53.5
47.5
42.5
37.0
38.0
61.5
60.5
56.0
50.0
45.0
40.5
39.0
62.5
59.0
54.5
49.0
43.0
38.0
38.0
62.5
60.0
55.8
50.3
44.3
39.8
38.5
65.5
61.5
56.0
50.2
43.7
38.7
39.0
65.5
62.5
57.3
51.5
45.0
40.5
39.5
62.5
59.5
54.0
48.5
44.0
38.0
39.0
63.0
62.0
56.0
51.0
46.5
42.0
40.0
64.0
58.0
54.8
49.5
45.0
39.0
39.2
64.3
59.3
55.8
50.8
46.3
41.0
39.7
67.0
60.5
56.0
50.7
45.7
39.7
40.2
67.3
61.8
57.0
52.0
47.0
41.7
40.7
63.0
55.5
52.5
48.5
45.5
39.0
31.0
66.0
60.2
55.0
51.5
48.0
43.0
34.3
64.5
59.0
57.0
50.5
47.0
40.5
37.0
65.7
60.9
58.0
51.7
48.0
42.1
38.3
67.5
61.5
58.5
51.7
47.7
41.2
38.0
68.7
63.4
59.5
52.9
48.7
42.8
39.3
64.0
56.5
53.5
49.5
46.5
39.5
31.5
68.5
61.5
56.0
53.0
49.5
44.5
35.0
65.5
59.5
54.0
51.0
48.5
41.5
38.0
67.3
61.5
55.0
52.4
49.7
43.5
39.4
68.5
62.0
55.5
52.2
49.2
42.2
39.0
70.3
64.0
56.5
53.6
50.4
44.2
40.4
65.0
58.0
54.5
51.0
48.0
41.0
32.5
70.0
63.5
57.5
55.0
51.5
46.5
36.5
68.5
60.8
55.5
53.0
49.5
43.0
39.9
70.5
63.0
56.7
54.6
50.9
45.2
41.5
71.5
63.3
57.3
54.2
50.2
43.7
40.9
73.5
65.5
58.5
55.8
51.6
45.9
42.5
69.5
61.5
57.5
55.5
53.0
49.5
40.0
74.5
64.5
59.0
58.5
56.0
54.0
46.0
71.5
62.5
57.5
55.5
53.5
49.0
41.0
73.0
65.2
58.9
58.2
56.2
53.1
46.4
74.0
64.0
58.5
56.0
53.5
48.5
41.5
75.5
66.7
59.9
58.7
56.2
52.6
46.9
69.0
61.0
57.5
55.0
52.5
47.0
39.0
73.5
67.5
61.5
60.0
56.0
54.0
46.0
74.0
64.0
61.0
55.0
51.5
47.0
42.5
75.4
66.0
62.2
56.5
52.6
49.1
44.6
76.5
65.5
62.0
55.5
51.5
46.5
43.0
77.9
67.5
63.2
57.0
52.6
48.6
45.1
63.0
58.0
55.5
52.0
44.0
37.0
31.0
74.5
69.0
63.5
62.0
56.5
53.0
46.0
80.0
65.5
58.0
54.5
47.5
41.5
41.0
82.3
69.9
61.2
58.5
52.5
47.9
47.0
82.5
67.0
59.0
55.0
47.5
41.0
41.5
84.8
69.2
60.6
57.0
50.0
44.2
44.5
64.0
59.0
57.0
53.0
45.0
38.0
32.0
76.0
70.5
65.0
63.5
58.0
55.0
47.5
81.0
66.3
59.0
55.3
49.5
44.0
42.5
83.4
68.6
60.6
57.4
52.1
47.4
45.6
83.5
67.8
60.0
55.8
49.5
43.5
43.0
85.9
70.1
61.6
57.9
52.1
46.9
46.1
79.5
71.0
65.0
62.5
60.0
56.5
49.0
82.0
74.5
67.5
65.0
63.0
60.0
53.0
79.0
71.0
65.0
63.0
59.5
56.5
49.0
79.5
71.7
65.5
63.5
60.1
57.2
49.8
81.5
72.5
66.0
63.5
59.5
56.0
49.5
82.0
73.2
66.5
64.0
60.1
56.7
50.3
NOTES:
1. Data based on sound measurements made in a reverberant room on representative units from each cabinet size in accordance with ARI Standard 260-2000.
2. Ratings for medium speed can be obtained through interpolation.
23
Performance data (cont)
50RHE UNITS WITH MUTE PACKAGE OPTION
RADIATED SOUND POWER DATA
UNIT
50RHE
MODE
FAN ONLY
006
COOLING
HEATING
FAN ONLY
009
COOLING
HEATING
FAN ONLY
012
COOLING
HEATING
FAN ONLY
015
COOLING
HEATING
FAN ONLY
019
COOLING
HEATING
FAN ONLY
024
COOLING
HEATING
SPEED
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
125
60.0
59.5
59.5
58.7
62.5
61.7
61.0
61.0
61.0
60.5
64.0
63.5
62.0
62.5
62.5
62.3
65.5
65.3
62.5
65.5
63.0
63.7
66.0
66.7
63.5
68.0
64.0
65.3
67.0
68.3
64.5
69.5
67.0
68.5
70.0
71.5
NOTES:
1. Data based on sound measurements made in a reverberant room on
representative units from each cabinet size in accordance with ARI
Standard 260-2000.
2. Ratings for medium speed can be obtained through interpolation.
24
FREE AIR INLET COMBINED WITH RADIATED CABINET
Octave Band Frequency, Hz
250
500
1000
2000
4000
58.5
51.3
45.5
39.0
33.0
57.5
52.5
45.5
40.0
34.5
54.5
51.5
45.0
40.0
33.5
55.9
53.3
46.0
41.0
36.4
57.0
52.8
46.2
40.7
34.2
58.4
54.6
47.2
41.7
37.1
59.0
52.0
46.0
39.5
34.5
58.5
53.5
46.0
40.5
35.5
56.0
53.0
46.5
40.0
34.0
57.5
54.8
47.3
40.8
36.3
58.5
54.5
47.7
40.7
34.7
60.0
56.3
48.5
41.5
37.0
60.0
52.5
47.0
41.0
35.5
60.0
53.5
47.0
42.0
37.0
55.0
53.3
47.0
42.0
35.0
56.8
54.8
47.8
42.8
37.5
57.5
54.5
48.2
42.7
35.7
59.3
56.0
49.0
43.5
38.2
56.0
51.0
47.0
42.5
36.5
58.2
52.5
47.5
43.5
38.0
56.0
55.5
48.0
44.0
36.5
58.4
57.0
48.7
44.5
38.6
58.5
57.0
49.2
44.7
37.2
60.9
58.5
49.9
45.2
39.3
57.0
52.0
48.0
43.5
37.0
59.5
53.5
49.0
45.0
39.5
56.5
52.5
48.5
45.5
37.5
59.0
54.0
49.4
46.2
40.0
59.0
54.0
49.7
46.2
38.2
61.5
55.5
50.6
46.9
40.7
58.5
53.0
49.5
45.0
38.5
61.5
55.0
51.0
47.0
41.5
57.8
54.0
50.5
46.5
39.0
60.5
55.7
51.6
47.4
41.7
60.3
55.8
51.7
47.2
39.7
63.0
57.5
52.8
48.1
42.4
8000
37.0
35.0
31.0
32.1
32.0
36.6
38.0
36.0
33.0
34.0
34.0
38.5
39.0
37.0
34.2
35.2
35.2
39.7
31.0
31.3
32.0
33.8
33.0
38.3
31.5
32.0
33.0
34.9
34.0
39.4
32.5
33.5
34.9
37.0
35.9
41.5
50RHE UNITS WITH MUTE PACKAGE OPTION (cont)
RADIATED SOUND POWER DATA (cont)
UNIT
50RHE
MODE
FAN ONLY
030
COOLING
HEATING
FAN ONLY
036
COOLING
HEATING
FAN ONLY
042
COOLING
HEATING
FAN ONLY
048
COOLING
HEATING
FAN ONLY
060
COOLING
HEATING
SPEED
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
125
69.0
74.0
70.0
71.0
72.5
73.5
68.5
73.0
72.5
73.4
75.0
75.9
62.5
74.0
78.5
80.3
81.0
82.8
63.5
75.5
79.5
81.4
82.0
83.9
79.0
81.5
77.5
77.5
80.0
80.0
FREE AIR INLET COMBINED WITH RADIATED CABINET
Octave Band Frequency, Hz
250
500
1000
2000
4000
62.0
56.0
54.0
50.0
47.0
62.5
56.5
54.5
51.5
49.0
59.5
56.0
53.0
50.5
45.0
62.7
57.9
55.2
52.7
49.6
61.0
57.0
53.5
50.5
44.5
64.2
58.9
55.7
52.7
49.1
61.5
56.0
53.5
49.5
44.5
65.5
59.0
56.0
51.5
49.0
61.0
59.5
52.5
48.5
43.0
63.5
61.2
53.5
49.1
45.6
62.5
60.5
53.0
48.5
42.5
65.0
62.2
54.0
49.1
45.1
58.5
54.0
50.5
41.0
34.5
67.0
61.0
58.0
52.0
48.0
62.5
56.5
52.0
44.5
37.5
67.4
60.2
55.5
49.0
44.4
64.0
57.5
52.5
44.5
37.0
66.7
59.6
54.0
46.5
40.7
59.5
55.5
51.5
42.0
35.5
68.5
62.5
59.5
53.5
50.0
63.3
57.5
52.8
46.5
40.0
66.1
59.6
54.4
48.6
43.9
64.8
58.5
53.3
46.5
39.5
67.6
60.6
54.9
48.6
43.4
71.5
63.5
61.0
57.0
54.0
72.5
65.0
61.0
58.5
55.0
68.0
63.5
60.5
56.5
52.5
69.2
64.5
60.5
56.6
53.7
69.5
64.5
61.0
56.5
52.0
70.7
65.5
61.0
56.6
53.2
8000
40.0
43.0
36.0
41.9
36.5
45.9
39.0
43.0
37.5
40.1
38.0
44.1
31.0
43.0
36.0
42.5
36.5
43.5
32.0
44.5
37.5
41.1
38.0
45.1
49.0
50.0
44.0
45.3
44.5
49.3
NOTES:
1. Data based on sound measurements made in a reverberant room on
representative units from each cabinet size in accordance with ARI
Standard 260-2000.
2. Ratings for medium speed can be obtained through interpolation.
25
Electrical data
LRA
FAN
MOTOR
FLA
TOTAL
UNIT
FLA
MIN
CIRCUIT
AMP
MAX
FUSE/HACR
2.3
15.0
0.4
2.7
3.2
15
197/254
2.7
18.8
0.7
3.7
4.5
15
197/254
3.9
22.2
0.7
4.5
5.6
15
220/240-1
197/254
4.2
27.0
0.9
5.9
7.1
15
019
220/240-1
197/254
6.8
45.0
0.9
8.6
10.5
15
024
220/240-1
197/254
8.2
51.0
1.6
10.4
12.6
20
220/240-1
197/254
9.1
54.0
1.7
11.2
13.6
20
380-415-3
342/462
3.3
25.0
1.0
4.3
5.2
15
220/240-1
197/254
11.5
83.0
2.7
17.2
20.8
35
VOLTS-PHASE
(50 Hz)
VOLTAGE
MIN/MAX
RLA
006
220/240-1
197/254
009
220/240-1
012
220/240-1
015
030
036
FLA
HACR
LRA
RLA
26
COMPRESSOR
50RHE
UNIT
380-415-3
342/462
4.2
32.0
1.7
5.9
6.0
15
042
380-415-3
342/462
5.5
34.5
1.7
6.0
7.1
15
048
380-415-3
342/462
5.9
42.0
1.8
7.5
8.9
15
060
380-415-3
342/462
8.2
61.8
2.5
9.9
11.8
15
—
—
—
—
LEGEND
Full Load Amps
Heating, Air Conditioning and Refrigeration
Locked Rotor Amps
Rated Load Amps
Typical piping and wiring
TYPICAL INSTALLATION — 50RHE UNITS
Return Loop
3/8”(9 mm) threaded rods
(by others)
Supply Loop
Water In
Filter Access
Water Out
Return Air
(Ductwork
not shown)
Field-supplied transition to
minimize pressure loss
Thermostat
Wiring
Power Wiring
Field-supplied
stainless steel
braid hose
with integral
“ J” swivel
Supply Air
Balancing Valve (fieldinstalled and calibrated
accessory)
Low Pressure Drop Water
Control Valve
(field-installed accessory)
Unit Power
Flexible
Insulated supply duct with Connection
at least one 90 deg elbow
Field-Supplied
to reduce air noise
Electric Heat
(field supplied)
(if applicable)
Water Out
Water In
Unit Power
Disconnect
Ball Valve with optional
integral P/T plug (typical for supply and
return piping)
Unit Hanger
3/8"(9 mm) Threaded
Rod (by others)
Vibration Isolator
(white-compressor end and
red-blower end)
size 042-060
Washer
(by others)
Double Hex Nuts
(by others)
Install screw as shown
Sizes 042-060
Optional on smaller sizes
Integral hanger supportpre-attached in factory
UNIT HANGER ISOLATION DETAIL
27
Typical wiring schematics
TYPICAL AQUAZONE™ COMPLETE C CONTROL WIRING
(SINGLE-PHASE UNITS)
G/Y
PB
6
POWER SUPPLY
REFER TO
DATA PLATE
USE COPPER
CONDUCTORS
ONLY
EARTH (GRD)
START ASSIST
(WHEN NEEDED)
G/Y
5
RED*
4
3
N (NEUTRAL)
L
2
1
BLU*
RED CAP BLU S
YEL
RED
6 8
BLK
2 CR 4
C
RED R
COMPRESSOR
BLK
BLK
2 4
BR YEL CAPACITOR
BRN
6 8
PSC
YEL OR WHT
FAN
MTR
SEE NOTE 3
YEL CB*
TRANS
24V
COMPONENT LOCATION
BLU
L(3)
BLU
M(2)
H(1)
3 AIR FLOW SETTINGS
(FCTRY SETTING - MED)
BLK
RED
220V
SEE NOTE 8
G/Y
ORG
240V
CR
SEE
NOTE 7
CAP
1
GRY
BRG
YEL
SEE
NOTE 7
CC
CCG
CXM
C
TEST PINS
SEE
NOTE 5
SIZES: 015-036
O
G
R
C
L
COMPRESS.
RELAY
R
TYPICAL
T-STAT
COMPR.
Y
TRANS
COOLING
FAN
24 VAC
COMMON
ALARM
SEE NOTE 6 FOR
DRY ALARM CONTACT
Y
Y
DIP SWITCH
JW3
FP1
1 PM
LOW TEMP
2 STAGE 2
3 NOT USED
JW2
4 NOT USED
FP2
5 1 OR 3
LOW TEMP
TRIES
OFF ON
W
O
G
R
C
A
PI
G
JWI
AL1
AL2
HP
SEE
NOTE 4
ALARM SEE
RELAY NOTE
6
CR
PB
CR
BRN
BRN
BR
PB
0
BR
BR
STATUS
LED
2
3
LOC
4
5
FP1
6
7
FP2
8
9
RV
10
CO 12
P2
CXM
MICROPROCESSOR
CONTROL LOGIC
RED
RED
BLU
BRN
GRY
GRY
VIO
(CAP -TUBE VIO
UNITS) OR VIO
BRN
ORG
NOT USED
YEL
HP
LOC
SEE NOTE 4
FP1
(TXV UNITS)
FP2
RVS
CO
24V
DC
CAP
CO
BR
1
EH1
EH2
P3
CXM
TRANS
SIZES: 006, 009, 012
AL
BR
CAP
CB
CC
CO
FP1
FP2
GND
HP
JW
LOC
P1
PM
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Alarm Relay Contacts
Blower Relay
Compressor Capacitor
Circuit Breaker
Compressor Contactor
Sensor, Condensate Overflow
Sensor, Water Coil Freeze Protection
Sensor, Air Coil Freeze Protection
Ground
High-Pressure Switch
Clippable Field Selection Jumper
Loss of Charge Pressure Switch
Field Wiring Terminal Block
Performance Monitor
PSC
RVS
TRANS
TXV
—
—
—
—
LEGEND
Permanent Split Capacitor
Reversing Valve Solenoid
Transformer
Thermostatic Expansion Valve
Field Line Voltage Wiring
Field Low Voltage Wiring
Printed Circuit Trace
Optional Wiring
*Optional Wiring.
NOTES:
1. Compressor and blower motor thermally protected internally.
2. All wiring to the unit must comply with NEC and local codes.
3. Transformer is wired to 240 v (ORG) lead for 240/50/1 units,
switch RED and ORG leads to PB(1) and insulate ORG lead.
4. FP1 thermistor provides freeze protection for water. When using
antifreeze solutions, cut JW3 jumper.
5. Typical heat pump thermostat wiring shown. Refer to thermostat
installation instructions for wiring to the unit.
28
Relay/Contactor Coil
Condensate Pan
Circuit Breaker
Relay Contacts — N.C.
Solenoid Coil
Relay Contacts — N.O.
Switch Temperature
Switch Low Pressure
Thermistor
Ground
Wire Nut
6. 24-v alarm signal shown. For dry alarm contact, cut JW1 jumper.
Dry contact will be available between AL1 and AL2.
7. Transformer secondary ground via microprocessor board standoffs and screws to control box. (Ground available from top two
standoffs as shown.)
8. Fan motors factory wired for medium speed. For high or low
speed remove BLU wire from fan motor speed tap “M” and connect to “H” for high or “L” for low.
TYPICAL AQUAZONE™ COMPLETE C CONTROL WIRING
(3-PHASE UNITS)
PB
6
POWER SUPPLY
REFER TO
DATA PLATE
USE COPPER
CONDUCTORS
ONLY
COMPONENT LOCATION
EARTH (GND)
5
N (NEUTRAL)
4
L3
3
L2
BLK L3
1
T3
T2
T1
CC
GROUND
LUG
2
L1
LUG
G/Y
BLK
T3
BLK
CC
BLK L2
T2
BLK
T3
T1 COMPR.
T2
BLK L1CC T1
BLK
BLK
BLK
YEL
SEE NOTE 3
CB* TRANS
BR1
BLK
1
BR
0
CXM
GRY
BRN
BR
BRG
8
6
7
ORG
(240V)
BR2
SEE
NOTE 7
BR2
BLK
H
BLU
YEL OR
BM M
WHT
RED
L
BRN
RED
(220V)
PB
TRANS
G/Y
G/Y
SEE NOTE 8
CC
BRN YEL
SEE
NOTE 7
CC
CCG
C
TEST PINS
SEE NOTE 5
COMPR.
SEE
NOTE 4
JW3
DIP SWITCH
FP1
1 PM
2 STAGE 2
LOW TEMP
3 NOT USED
JW2
4 NOT USED
FP2
5 1 OR 3
TRIES
LOW TEMP
OFF ON
Y
W
O
G
R
C
L
COOLING
FAN
24VAC
COMMON
ALARM
SEE NOTE 6 FOR
DRY ALARM CONTACT
O
G
R
G
C
A
P1
RED
3
LOC
4
BLU
FP1
5
6
7
FP2
8
RV 9
10
STATUS
LED
JW1
AL1
AL2
1
2
HP
Y
TYPICAL
T-STAT
Y
COMPRESSOR
RELAY
R
HP
RED
LOC
BRN
SEE NOTE 4
GRY
GRY
VIO
VIO
(CAP-TUBE
UNITS) OR VIO
FP1
(TXV UNITS)
BRN
FP2
RVS
ORG
NOT USED
SEE
ALARM NOTE 6
RELAY
CO 12
P2
CXM
MICROPROCESSOR
CONTROL LOGIC
YEL
CO
24V
DC
EH1
CO
AL
BR
CAP
CB
CC
CO
COMPR
FP1
FP2
GND
HP
JW
LOC
P1
PM
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Alarm Relay Contacts
Blower Relay
Compressor Capacitor
Circuit Breaker
Compressor Contactor
Sensor, Condensate Overflow
Compressor
Sensor, Water Coil Freeze Protection
Sensor, Air Coil Freeze Protection
Ground
High-Pressure Switch
Clippable Field Selection Jumper
Loss of Charge Pressure Switch
Field Wiring Terminal Block
Performance Monitor
PSC
RVS
TRANS
TXV
LEGEND
— Permanent Split Capacitor
— Reversing Valve Solenoid
— Transformer
— Thermostatic Expansion Valve
Field Line Voltage Wiring
Field Low Voltage Wiring
Printed Circuit Trace
Optional Wiring
*Optional wiring.
NOTES:
1. Compressor and blower motor thermally protected internally.
2. All wiring to the unit must comply with NEC and local codes.
3. Transformer is wired to 240 v (ORG) lead for 240/50/1 units,
switch RED and ORG leads to PB(1) and insulate ORG lead.
4. FP1 thermistor provides freeze protection for water. When using
antifreeze solutions, cut JW3 jumper.
5. Typical heat pump thermostat wiring shown. Refer to thermostat
installation instructions for wiring to the unit.
Relay/Contactor Coil
EH2
P3
Circuit Breaker
Relay Contacts — N.C.
Solenoid Coil
Relay Contacts — N.O.
Switch Temperature
Switch Low Pressure
Ground
Thermistor
Condensate Pan
Wire Nut
Splice Cap
6. 24-v alarm signal shown. For dry alarm contact, cut JW1 jumper.
Dry contact will be available between AL1 and AL2.
7. Transformer secondary ground via microprocessor board standoffs and screws to control box. (Ground available from top two
standoffs as shown.)
8. Fan motors factory wired for medium speed. For high or low
speed remove BLU wire from fan motor speed tap “M” and connect to “H” for high or “L” for low.
29
Typical wiring schematics (cont)
TYPICAL AQUAZONE™ DELUXE D CONTROL WIRING
(SINGLE-PHASE UNITS)
POWER
DISTRIBUTION
BLOCK
POWER SUPPLY
REFER TO
DATA PLATE
USE COPPER
CONDUCTORS
ONLY
EARTH (GRD)
PB
6
SEE NOTE 8
G/Y
G/Y
START ASSIST
(WHEN NEEDED)
5
RED*
4
3
N (NEUTRAL)
L
2
1
RED 6 8
BLK 2 CR 4
SEE NOTE 3
CB TRANS
BR1
BR2
YEL
BLK
24V
RED
(220V)
BLU
ORG
(240V)
2
4
YEL BR1
6
8
C
RED R
BLK
BLK
CR
BLU*
RED CAP BLU S
YEL
COMPRESSOR
BLK
YEL
BR2
BLK
BLU NO COM
NC
RED
YEL OR WHT
BMC
BRN
BRN
SIZES: 006, 009, 012
BRN
TYPICAL HEAT
PUMP T-STAT
SEE NOTE 5
COMPR.
O
G
R
C
XI
COOLING
FAN
24VAC
COMMON
ALARM
SEE NOTE 6 FOR
DRY CONTACT
FOR ALARM
COMPONENT LOCATION
CR
BR2
BR1
SIZES: 015-060
RED
RED
SEE
NOTE 7
C
P1
Y1
Y2
W1
O/W2
G
R
C
AL1
P2
AL2
R
NSB
C
ESD
OVR
H
A
P3
R
NO1
NC1
COM
NO2
NC2
COM
R
BR1
FAN E N A B L E
1
RELAY
COM
GRY
NO
RC S S C
COM2 COM1
R
1
2
3
4
5
6
7
8
SEE
NOTE 7 0
FAN
S P E E D
COM R E L A Y
DXM
MICROPROCESSOR
CONTROL LOGIC
ALARM
RELAY
SEE
NOTE 6
JW4
AL2
DRY
NO
STATUS G
TEST Y
FAULT R
RV RELAY
TEST
PINS
NC
1
HP 2
3
L O 4C
FP1 5
6
FP2 7
8
9
RV 10
C O12
P7
24V
DC
JW3
SEE
FP1 LOW
NOTE 4
JW2 LOW
FP2
EH1
JW1 N.O.
ACC1
EH2
LP
OFFON
OFFON
RELAY
P6
CCG
1 PM: DISABLE/ENABLE
1 ACC1
2 UNIT STAGE: 2/1
2 FUNCTIONS
ACC2
3 T ’ S T A T : H E A T C O O L /3H E A T P U M P COMPR
RELAY
4 RV ON B/RV ON 0
4 ACC2
RELAY
5 DEHUMID/NORMAL
5 FUNCTIONS
6 NOT USED
6
CC
H:
HI
FAN/DEHUMID
7 B O I L E R L E S S : E N A B 7L E / D I S A B L E
8 BOILERLESS: 40°F/50°F
8 NOT USED
S1
S2
DIP SWITCH PACKAGE
DIP SWITCH PACKAGE
BR2
GRY
HP
RED
RED
BLU
BLK* HWTS
BLK*
LOC
SEE NOTE 4
GRY
FP1 (TXV UNITS)
GRY
VIO (CAP TUBE VIO
FP2
UNITS) OR VIO
BRN
ORG
CO
YEL
1
BRN
CR
BRN*
2
M *V
YEL
RED*
LEGEND
AL
— Alarm Relay Contacts
MV
— Motorized Valve
Thermistor
BM
— Blower Motor
P1
— Field Wiring Terminal Block
BMC — Blower Motor Capacitor
PM
— Performance Monitor
Condensate Pan
BR
— Blower Relay
PSC
— Permanent Split Capacitor
CAP — Compressor Capacitor
RVS
— Reversing Valve Solenoid
G
LED
CB
— Circuit Breaker
TRANS — Transformer
CCH — Crankcase Heater
TXV
— Thermostatic Expansion Valve
Solenoid Coil
CO
— Sensor, Condensate Overflow
Field Line Voltage Wiring
FP1
— Sensor, Water Coil Freeze Protection
Relay Contacts — N.O.
Field Low Voltage Wiring
FP2
— Sensor, Air Coil Freeze Protection
Temperature Switch
GND — Ground
Printed Circuit Trace
HP
— High-Pressure Switch
Optional Wiring
Switch — Loss of Charge
HWTS — High (Leaving) Water Temp Switch
JW
— Clippable Field Selection Jumper
Relay/Contactor Coil
Ground
LOC — Loss of Charge Pressure Switch
Wire Nut
*Optional wiring.
NOTES:
1. Compressor and blower motor thermally protected internally.
6. 24-v alarm signal shown. For dry alarm contact, cut JW4 jumper,
2. All wiring to the unit must comply with NEC and local codes.
and dry contact will be available between AL1 and AL2.
3. Transformer is wired to 240 v (ORG) lead for 240/50/1 units,
7. Transformer secondary ground via microprocessor board standswitch RED and ORG leads to PB(1) and insulate ORG lead for
offs and screws to control box. (Ground available from top two
220/50/1.
standoffs as shown.)
4. FP1 thermistor provides freeze protection for water. When using
8. Blower motor is factory wired for medium and high speeds. For
antifreeze solutions, cut JW3 jumper.
any other combination of speeds, at the motor attach black wire
5. Check installation wiring information for specific thermostat
to the higher of the two desired speed taps, and the blue wire to
hookup. Refer to thermostat installation instructions for wiring to
the lower of the two desired speed taps.
the unit. Thermostat wiring must be “Class 1” and voltage rating
equal to or greater than unit supply voltage.
30
TYPICAL AQUAZONE™ DELUXE D CONTROL WIRING
(3-PHASE UNITS)
PB
6
COMPONENT LOCATION
LUG
CC
T3
T2
T1
POWER SUPPLY
REFER TO
DATA PLATE
USE COPPER
CONDUCTORS
ONLY
EARTH (GND)
5
N (NEUTRAL)
4
GROUND
LUG
BLK L3
3
L3
L2
2
L1
BR1
G/Y
G/Y
G/Y
1
T3
BLK
BLK L2CC T2
BLK
T3
T1
COMPR.
T2
BLK L1CC T1
BLK
BLK
BLK
BLK
BR2
PB
BR1 YEL
YEL
6
YEL CB YEL
TRANS
BLU
BLK
BMC
YEL OR
WHT
L
BR2
BLU
6
RED
7
BM M
BRN
RED
(220V)
24V
BLK
H
8
8
SEE NOTE 8
ORG
(240V)
BRN
BRN
RED
RED
SEE
NOTE 7
C
TYPICAL HEAT
PUMP T-STAT
SEE NOTE 5
COMPR.
Y
O
G
R
C
XI
COOLING
FAN
24VAC
COMMON
ALARM
SEE NOTE 6 FOR
DRY CONTACT
FOR ALARM
FAN ENABLE
RELAY
COM
RCS
S C
COM2 COM1
P1
Y1
Y2
W1
O/W2
G
R
C
AL1
SEE
NOTE 7 0
BR1
R
1
2
3
4
5
6
7
8
P2
AL2
R
NSB
C
ESD
OVR
H
A
P3
R
NO1
NC1
COM
NO2
NC2
COM
R
GRY
NO
FAN
COM SPEED
RELAY
DXM
MICROPROCESSOR
CONTROL LOGIC
ALARM
RELAY
NO
AL2
NC
JW4
DRY
STATUS G
TEST Y
FAULT R
RV
RELAY
TEST
PINS
JW3
FP1 LOW
BR2
HWTS
HP BLK*
RED
BLK*
RED
BLU
LOC
BRN
SEE NOTE 4
GRY
FP1
TXV
GRY
VIO
UNITS
VIO
CAP TUBE
VIO UNIT
VIO
FP2
BRN
ORG
GRY
1
2
3
LOC
4
FP1 5
6
FP27
8
RV 9
10
HP
SEE
NOTE 6
1
CO12
P7
CO
YEL
SEE
NOTE 4
24V
DC
JW2 LOW
EH1
FP2
ACC1
JW1 N.O.
EH2
LP
RELAY
P6
OFFON
OFFON
CCG
PM:
DISABLE/ENABLE
1 ACC1
1
COMPR
2 FUNCTIONS
2 UNIT STAGE: 2/1
ACC2
RELAY
3 T’STAT: HEAT COOL/HEAT PUMP
3
RELAY
CC
4 RV ON B/RV ON 0
4 ACC2
5 FUNCTIONS
5 DEHUMID/NORMAL
6 NOT USED
6
7 H: HI FAN/DEHUMID
7 BOILERLESS: ENABLE/DISABLE
8 NOT USED
8 BOILERLESS: 40°F/50°F
S1
S2
DIP SWITCH PACKAGE
DIP SWITCH PACKAGE
BRN
A2
CC
A1
YEL
LEGEND
AL
BM
BMC
BR
CAP
CB
CCH
CO
FP1
FP2
GND
HP
HWTS
JW
LOC
MV
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Alarm Relay Contacts
Blower Motor
Blower Motor Capacitor
Blower Relay
Compressor Capacitor
Circuit Breaker
Crankcase Heater
Sensor, Condensate Overflow
Sensor, Water Coil Freeze Protection
Sensor, Air Coil Freeze Protection
Ground
High-Pressure Switch
High (Leaving) Water Temp Switch
Clippable Field Selection Jumper
Loss of Charge Pressure Switch
Motorized Valve
P1
PM
PSC
RVS
TRANS
TXV
—
—
—
—
—
—
*Optional wiring.
NOTES:
1. Compressor and blower motor thermally protected internally.
2. All wiring to the unit must comply with NEC and local codes.
3. Neural of 380/415-3-50 is required. Transformer is wired to 240-v (ORG)
lead for 415/3/50. For 380/3/50 switch ORG and (RED) leads at PB(1) and
insulate ORG lead. Transformer uses separate circuit breaker.
4. FP1 thermistor provides freeze protection for water. When using antifreeze
solutions, cut JW3 jumper.
5. Check installation wiring information for specific thermostat hookup. Refer
to thermostat installation instructions for wiring to the unit. Thermostat
wiring must be “Class 1” and voltage rating equal to or greater than unit
supply voltage.
Field Wiring Terminal Block
Performance Monitor
Permanent Split Capacitor
Reversing Valve Solenoid
Transformer
Thermostatic Expansion Valve
Field Line Voltage Wiring
Field Low Voltage Wiring
Printed Circuit Trace
Optional Wiring
Relay/Contactor Coil
Condensate Pan
Circuit Breaker
G
LED
Capacitor
Solenoid Coil
Relay Contacts — N.O.
Temperature Switch
Switch — Loss of Charge
Thermistor
Ground
Wire Nut
6. 24-v alarm signal shown. For dry alarm contact, cut JW4 jumper, and dry
contact will be available between AL1 and AL2.
7. Transformer secondary ground via microprocessor board standoffs and
screws to control box. (Ground available from top two standoffs as shown.)
8. Blower motor is factory wired for medium and high speeds. For any other
combination of speeds, at the motor attach black wire to the higher of the
two desired speed taps, and the blue wire to the lower of the two desired
speed taps.
9. Blower motor is factory wired for high and low speeds. No other combination of speeds is available.
31
Application data
Water loop system
Water loop (or boiler/tower) system applications typically
include a number of units plumbed to a common piping
system. For optimal performance, this system should be
designed between 0.040 and 0.054 l/s per kW of cooling
capacity. The system is comprised of highly efficient packaged reverse cycle heat pump units interconnected by a
water loop. The water circuit serves as both a sink and
source for heat absorption and rejection and is designed
for entering water temperatures between 15.6 C and
35 C. Within this temperature range units can heat or
cool, as required, from the same water source. Transferring heat from warm to cold spaces in the building reduces
the need to create heat and conserves energy.
Refer to the Carrier Water Source Heat Pump System Design Guide for assistance with the design of water
loop systems. The guide includes a practical approach
for the latest and most current design recommendations
including:
• Product applications.
• Ventilation methods and system design including energy
recovery.
• Acoustical considerations for different product types.
• Addressing IAQ issues such as condensate removal and
humidity control.
• Air Distribution Design including diffuser selection/
layout and ductwork design.
• Hydronic System Design including pipe sizing/layout
and boiler/tower sizing.
• Control Configurations such as stand alone, DDC,
DCV, and VVT®.
• WSHP Efficiency/Operational Cost Comparison chart.
• System variations such as a system without a boiler,
variable pumping, and VAV for interior use.
Ground water systems
To utilize Aquazone™ units in ground water applications,
extended range should be specified. This will provide
factory-installed insulation on the coaxial coil to prevent
condensate from dripping when entering water temperatures are below 15 C. In addition, the copper coaxial coil
installed on the Aquazone units may not be suitable for all
water conditions. Refer to the Water Conditioning section
for proper coaxial coil material selection.
Surface water system — This system is typically located
near a lake or pond. In this application, the loop can be
submerged in a series of coils beneath the water surface.
The number of coils required depends on system load and
design. This application requires minimum piping and
excavation.
Open loop system — This system is used where ground
water is plentiful. In this application, ground water is
pumped through supply piping from the well to the building.
The water is then pumped back into the ground through a
discharge well as it leaves the building. An additional heat
exchanger is usually installed between the building water
piping system and the ground water piping system. This design limits the amount of piping and excavation required.
Aquazone units are provided with a standard TXV and
are rated to extremely low temperatures to self-adjust the
32
refrigeration circuit; therefore water regulating valves are
not required on open loop systems. To conserve water on
this type of system, a slow opening/closing solenoid valve
is recommended.
Ground loop systems
There are many commonly specified designs for ground
loop applications. Typical designs include vertical loops
and horizontal loops. In some applications, water is piped
from the ground or lake directly to the water source heat
pump. Piping is limited to the amount of pipe required to
get the water from the source to the unit.
NOTE: When utilizing Aquazone water source heat pumps
in ground loop systems, refer to design considerations in
the ground water system section.
Horizontal ground loop — This system is used when
adequate space is available and trenching can be easily accomplished. A series of parallel pipes are laid out in trenches 1 to 2 meters feet below the ground surface, and then
back-filled. Often, multiple pipes are used to maximize the
heat transfer capability of each trench. The amount of pipe
and the size of the ground loop field are based on ground
conditions, heating, and cooling requirements of the application and system design.
Vertical ground loop — This system is used in vertical
borehole applications. This design is well suited for retrofit
applications when space is limited or where landscaping is
already complete and minimum disruption of the site is desired. The vertical ground loop system contains a single
loop of pipe inserted into a hole. The hole is back-filled and
grouted after the pipe is inserted. The completed loop is
concealed below ground. The number of loops required depends on ground conditions, heating and cooling requirements, and the depth of each hole.
Hybrid systems — In some applications, it may be beneficial to incorporate a cooling tower into the ground loop
system to reduce the overall cost. A Hybrid System discards excess heat into the air and increases the cooling
performance of the ground loop.
Condensate drainage
Venting — Condensate lines should be properly vented to
prevent fan pressure from causing water to hang up in the
piping. Condensate lines should be pitched to assure full
drainage of condensate under all load conditions. Chemical
treatment should be provided to remove algae in the condensate pans and drains in geographical areas that are
conducive to algae growth.
Trapping — Condensate trapping is essential on every
water source heat pump unit. A trap is provided to prevent
the backflow of moisture from the condensate pan and into
the fan intake or downstream into the mechanical system.
The water seal or the length of the trap depends on the
positive or negative pressure on the drain pan. As a rule of
thumb, the water seal should be sized for 25.4 mm for
every 249 Pa of negative pressure on the unit. The water
seal is the distance from the bottom of the unit condensate
piping connection to the bottom of the condensate drain
line run-out piping. Therefore, the trap size should be
double the water seal dimension.
Horizontal units — Horizontal units should be sloped
toward the drain at a 6.4 mm per 30 cm pitch. If it is not
possible to meet the pitch requirement, a condensate
pump should be designed and installed at the unit to pump
condensate to a building drain. Horizontal units are not
internally trapped; therefore an external trap is necessary.
Each unit must be installed with its own individual trap and
means to flush or blowout the condensate drain. The
design of a common trap or vent for multiple units is not
acceptable. The condensate piping system should not be
designed with a pipe size smaller than the drain connection
pipe size.
Water conditioning
In some applications, maintaining proper water quality
may require the use of higher corrosion protection for
the water-to-refrigerant heat exchanger. Water quality
varies from location to location and is unique for each job.
Water characteristics such as pH value, alkalinity, hardness, and specific conductance are of importance when
considering any WSHP application. Water typically
includes impurities and hardness that must be removed.
The required treatment will depend on the water quality as
well as type of system. Water problems fall into three main
categories:
1. Scale formation caused by hard water reduces the
heat transfer rate and increases the water pressure
drop through the heat exchanger. As water is heated,
minerals and salts are precipitated from a solution
and deposited on the inside surface of the pipe or
tube.
2. Corrosion is caused by absorption of gases from the
air coupled with water on exposed metal. Corrosion
is also common in salt-water areas.
3. Organic growths such as algae can reduce the heat
transfer rate by forming an insulating coating on the
inside tube surface. Algae can also promote corrosion
by pitting.
NOTE: In most commercial water loop applications, Aquazone™ WSHP units use copper water-to-refrigerant heat
exchanger. Units can also be equipped with a cupronickel
heat exchanger for applications where water is outside the
standard contaminant limits for a copper heat exchanger.
WATER QUALITY GUIDELINES
CONDITION
pH
ACCEPTABLE LEVEL
7 to 9 range for copper. Cupronickel may be used
in the 5 to 9 range.
Calcium and magnesium carbonate should not
Total Hardness
exceed 350 ppm.
Iron Oxides
Less than 1 ppm.
Iron Bacteria
No level allowable.
Corrosion*
Max Allowable
Coaxial
Level
Metal
Ammonia,
0.5 ppm
Cu
Ammonium Hydroxide
Ammonium Chloride,
0.5 ppm
Cu
Ammonium Nitrate
Ammonium Sulfate
0.5 ppm
Cu
Chlorine/Chlorides
0.5 ppm
CuNi
Hydrogen Sulfide†
None Allowable
—
Brackish
Use Cupronickel heat exchanger when concentrations
of calcium or sodium chloride are greater than 125 ppm
are present. (Seawater is approximately 25,000 ppm.)
*If the concentration of these corrosives exceeds the maximum allowable
level, then the potential for serious corrosion problems exists.
†Sulfides in the water quickly oxidize when exposed to air, requiring that no
agitation occur as the sample is taken. Unless tested immediately at the
site, the sample will require stabilization with a few drops of one Molar zinc
acetate solution, allowing accurate sulfide determination up to 24 hours
after sampling. A low pH and high alkalinity cause system problems, even
when both values are within ranges shown. The term pH refers to the acidity, basicity, or neutrality of the water supply. Below 7.0, the water is considered to be acidic. Above 7.0, water is considered to be basic. Neutral water
contains a pH of 7.0.
NOTE: Hardness in mg/l is equivalent to ppm.
Acoustical design
Sound power levels represent the sound as it is produced
by the source, the WSHP unit, with no regard to attenuation between the source and the space. Acoustical design
goals are necessary to provide criteria for occupied spaces
where people can be comfortable and communicate effectively over the background noise of the air-conditioning
system and other background noise sources.
Acoustical design goals are desirable sound pressure levels within a given conditioned space and are represented
by Noise Criteria (NC) curves. Noise Criteria (NC) curve
levels represent a peak over a full spectrum of frequencies.
A high value in a low frequency band has the same effect
on NC level as a lower value in a high frequency band. It is
important that sound levels be balanced over the entire
spectrum relative to the NC curve. The lower the NC
criteria curve, the more stringent the room acoustical
design must be to meet the design goals.
It is important to know how to convert NC levels
from the unit ratings in terms of sound power (Lw). This
conversion depends on the specifics of the acoustical
environment of the installation.
The resulting calculations are compared to the NC curve
selected for the area to assess the acoustical design.
Some of the factors that affect conversion of sound
power to sound pressure and consequent NC level include:
• Type of acoustical ceiling
• Use of metal or flex duct
• Absorption in the occupied space
• Location in the occupied space
• Open or closed layout plan
• Use of open or ducted returns
• Orientation of unit to occupant
• Use of lined or unlined duct
33
Application data (cont)
OCTAVE BAND SOUND PRESSURE LEVEL (Lp)
ASSOCIATED WITH NC CURVES
NOISE
CRITERIA
CURVES
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
OCTAVE BAND SOUND PRESSURE LEVEL (Lp)
Frequency (Hz)
63 125 250 500 1000 2000 4000 8000
49
36
26
17
17
14
12
11
52
41
33
27
22
19
17
16
54
45
38
31
27
24
22
21
58
49
41
36
31
29
28
27
61
53
45
40
36
34
33
32
64
57
50
45
41
39
38
37
67
61
54
49
46
44
43
42
71
64
58
54
51
49
48
47
74
68
63
58
56
54
53
52
77
71
67
63
61
59
58
57
80
75
71
68
66
64
63
62
WSHP sound control
The analysis of the projected sound level in the conditioned
space caused by a WSHP unit located in a ceiling plenum is
quite involved. The key is to have good sound power ratings (Lw) in dB on the equipment to determine the sound
attenuation effect of the ductwork, ceiling and room. In
combination with utilizing standard Aquazone™ equipment
attenuating features or the advanced mute package features, suggestions for horizontal and vertical unit sound design are provided to design around the WSHP units.
Horizontal units
Use the following guidelines for layout of Aquazone horizontal units to minimize noise:
1. Obtain sound power ratings in accordance with latest
standards from manufacturers to select quietest
equipment.
2. Do not locate units over a space with a required NC
of 40 or less. Instead, locate units above less sensitive
noise areas such as above or in equipment rooms,
utility closets, restrooms, storage rooms, or above
corridors.
3. Provide at least 3 meters between WSHP units to
avoid the additive effect of two noise sources.
4. Provide an acoustical pad underneath the WSHP unit
in applications where the unit must be mounted
above noise sensitive areas such as private offices or
conference rooms. The pad attenuates radiated noise.
Be sure the pad has an area at least twice that of the
WSHP footprint.
5. Maximize the installed height above the suspended
ceiling.
6. Be sure the WSHP unit is located at least 2 meters
away from any ceiling return grille to prevent line-ofsight casing noise to reach the space below.
7. Suspend the WSHP unit from the ceiling with hangers that utilize spring or neoprene type isolators to
reduce vibration transmission.
8. Utilize flexible electrical connections to the WSHP
unit. DO NOT USE NOT RIGID CONNECTIONS.
9. Utilize flexible loop water and condensate piping connections to the WSHP unit.
34
10. Use a canvas duct connector to connect the WSHP
discharge to the downstream duct system. This
reduces vibration-induced noise.
11. Provide acoustic interior lining for the first 6 meters
of discharge duct, or until the first elbow is reached.
The elbow prevents line-of-site sound transmission in
the discharge duct.
12. Provide turning vanes in ductwork elbows and tees to
reduce air turbulence.
13. Size the sheet metal supply duct with velocities no
greater than 5 m/s.
14. Ensure ductwork is rigid.
15. Use round duct whenever possible to further reduce
noise.
16. Allow at least 3 equivalent duct diameters of straight
duct upstream and downstream of the unit before
allowing any fittings, transitions, etc.
17. Seal all penetrations around duct entering the space.
18. Provide a 1.2 meter run-out duct made of flexible
material to connect a diffuser to the supply trunk
duct. The flex duct provides an “attenuating endeffect” and reduces duct-transmitted sound before it
reaches the space. Typically a 6 db sound reduction
can be accomplished with the use of flex duct.
19. Locate the run-out duct balancing damper as far away
from the outlet diffuser as possible. Locating the
balancing damper at the trunk duct exit is the best
location.
20. If return air is drawn through a ceiling plenum, provide
an acoustically lined return duct elbow or “L” shaped
boot at the WSHP to eliminate line-of-sight noise into
the ceiling cavity and possible through ceiling return
air grilles. Face the elbow or boot away from the nearest adjacent WSHP unit to prevent additive noise.
21. Do not hang suspended ceiling from the ductwork.
Solenoid valves
In applications using variable flow pumping, solenoid
valves can be field installed and operated from the control
board in the Aquazone WSHP unit.
Freeze protection
Applications where systems are exposed to outdoor temperatures below freezing (0° C) must be protected from freezing. The most common method of protecting water systems
from freezing is adding glycol concentrations into the water.
Design care should be used when selecting both the type
and concentrations of glycol utilized due to the following:
• Equipment and performance may suffer with high concentrations of glycol and other antifreeze solutions
• Loss of piping pressure may increase greatly, resulting
in higher pumping costs
• Higher viscosity of the mixture may cause excess corrosion and wear on the entire system
• Acidity of the water may be greatly increased, promoting corrosion
• Glycol promotes galvanic corrosion in systems of dissimilar metals. The result is corrosion of one metal by
the other, causing leaks.
Guide specifications
R-407C
Packaged Water Source Heat Pumps
HVAC Guide Specifications
Size Range:
1.5 to 13.7 kW
Cooling Capacity
1.8 to 16.8 kW
Heating Capacity
Carrier Unit: 50RHE
Part 1 — General
1.01 SYSTEM DESCRIPTION
A. Install Water Source Heat Pumps, as indicated on
the plans with capacities and characteristics as listed
in the schedule and the specifications that follow.
Units shall be Carrier unit 50RHE horizontal
configuration.
B. Units shall be supplied completely factory built and
capable of operation with an entering water temperature range from 15.6 to 35 C as standard –6.7 to
43.3 C extended range).
Equivalent units from other manufacturers can be
proposed provided approval to bid is given 10 days
prior to bid closing.
C. Units shall be individually packaged with wooden
skid covered with protective corner posts and plastic
stretch wrapping for maximum protection.
1.02 QUALITY ASSURANCE
A. All equipment listed in this section must be rated
in accordance with ISO 13256-1 performance
standard. The units shall have CE conformity mark.
B. All units shall be factory tested under normal operating conditions at nominal water flow rates. This testing shall generate a report card to be shipped with
each unit stating performance in both Heating and
Cooling modes.
C. Serial numbers will be recorded by factory and furnished to contractor for ease of unit warranty status.
Units which are tested without water flow rates are
not acceptable.
Part 2 — Product
2.01 EQUIPMENT
A. General:
1. The horizontal heat pumps shall be fabricated
from heavy gage galvanized sheet metal. All
interior surfaces shall be lined with 1/2 in. thick,
11/2 lb (12.7 mm thick, 0.7 kg) acoustic type
fiberglass insulation. All fiberglass shall be
coated and have exposed edges tucked under
flanges to prevent the introduction of glass
fibers into the airstream. All insulation must
meet NFPA 90A (U.S.A. standard).
2. Units shall be prewired and precharged in
factory.
B. Unit Cabinet:
1. Units must have the ability to be field convertible from side to back or back to side discharge
2.
3.
4.
5.
6.
7.
8.
C. Fan
1.
2.
3.
4.
5.
with no additional parts or unit structure modification. Units will have factory-installed hanger
brackets and isolation grommets.
Horizontal Units shall have one of the following airflow arrangements: Right-Discharge/
Left-Return; Left-Discharge/Right-Discharge
Return; Back-Discharge/Left-Return; or BackDischarge/Right-Return as shown on the
plans.
If units with these arrangements are not used,
the contractor is responsible for any extra costs
incurred by other trades.
Cabinets shall have separate openings and
knockouts for entrance of line voltage and low
voltage control wiring. Contractor must ensure
that units can be easily removed for servicing
and coordinate locations of electrical conduit
and lights with the electrical contractor.
All units must have a minimum of three access
panels for serviceability of compressor compartment. If other arrangements make servicing difficult, the contractor must provide access panels
and clear routes to ease service. Architect must
approve any changes in layout.
All units must have an insulated panel separating the fan compartment from the compressor
compartment.
Optional Mute package shall consist of high
technology sound attenuating materials that are
strategically applied to the cabinet, in addition
to the standard system, to further dampen
sound.
Units with the compressor in the airstream are
not acceptable.
and Motor Assembly:
Units rated 14 kW and under shall have a
direct-drive centrifugal fan. The fan motor shall
be 3-speed, permanently lubricated, PSC (permanent split capacitor) type with internal
thermal overload protection.
Blower shall have inlet rings to allow removal of
wheel and motor from one side without removing housing.
Units supplied without permanently lubricated
motors must provide external oilers for easy
service.
The fan motor shall be isolated from the fan
housing by torsionally flexible isolation grommets. The fan and motor assembly must be
capable of overcoming the external static pressures as shown on the schedule.
Airflow/Static pressure rating of the unit shall
be based on a wet coil and a clean filter in
place.
35
Guide specifications (cont)
D. Refrigerant Components:
1. Units shall have a sealed refrigerant circuit
including a high efficient scroll, rotary or reciprocating compressor designed for heat pump
operation. Units shall be designed with environmentally friendly HFC-407C refrigerant.
2. Units shall have a thermostatic expansion valve
for refrigerant metering, an enhanced aluminum lanced fin and rifled copper tube refrigerant to air heat exchanger, a reversing valve, a
coaxial (tube-in-tube) refrigerant-to-water heat
exchanger.
3. Hermetic reciprocating compressors shall be
internally sprung. The compressor will be
mounted on external computer selected isolating springs. The external springs will be secured
to rails that are isolated from the cabinet base.
Compressor shall have thermal overload protection and be located in an insulated compartment away from airstream to minimize sound
transmission.
4. Refrigerant-to-air heat exchangers shall utilize
enhanced lanced aluminum fins and rifled
copper tube construction rated to withstand
3100 kPa refrigerant working pressure.
5. Refrigerant-to-water heat exchangers shall be of
copper inner-water tube and steel refrigerant
outer tube design, rated to withstand 3100 kPa
working refrigerant pressure and 3100 kPa
working water pressure. Plate-to-plate heat
exchangers cannot be used.
6. Refrigerant metering shall be accomplished by
thermostatic expansion valve only. Units
intended for use in standard operating range
with entering water temperatures from 15.6 to
35 F.
7. Reversing valves shall be four-way solenoid activated refrigerant valves which shall fail to heating operation should the solenoid fail to
function. If the reversing valve solenoid fails to
cooling, a low temperature thermostat must be
provided to prevent over-cooling an already
cold room.
8. Optional cupronickel coaxial water-to-refrigerant
heat exchangers.
9. Optional Extended Range for units operating
with entering water temperatures below dew
point. For use in operating range with entering
water temperatures from –6.7 to 43.3 C.
10. Optional two-way water control valve.
11. Water circuit options to provide internally
mounted 0.045 or 0.054 1/s per kW automatic flow regulating valves.
36
E. Drain Pan:
The drain pan shall be constructed to inhibit corrosion and is fully insulated. Drain outlet shall be
located on pan as to allow complete and unobstructed drainage of condensate. Vertical units will
be supplied with factory-installed trap inside of cabinet. The unit as standard will be supplied with solidstate electronic condensate overflow protection.
Mechanical float switches are not acceptable.
F. Filter:
1. Units shall have a factory installed 25.4 mm
wide filter bracket for filter removal from either
side. Units shall have a 25.4 mm. thick throwaway type fiberglass filter.
2. The contractor shall purchase one spare set of
filters and replace factory shipped filters on
completion of start-up.
3. Field installed 50.8 mm filter brackets and
50.8 mm fiberglass throwaway filters on all
units can be installed by contractor.
G. High-Static Blower:
Provides increased airflow at various static pressure
conditions. Available in size 048.
H. Controls and Safeties:
1. Electrical:
a. A control box shall be located within the unit
compressor compartment and shall contain a
50 va transformer, 24-volt activated, 2 or
3 pole compressor contactor, terminal block
for thermostat wiring and solid-state controller for complete unit operation. Electromechanical operation is not acceptable.
b. Units shall be nameplated for use with timedelay fuses or HACR circuit breakers. Unit
controls shall be 24-volt and provide heating
or cooling as required by the remote
thermostat/sensor.
2. Piping:
a. Supply and return water connections shall
be copper FPT fittings and shall be securely
mounted flush to the cabinet corner post
allowing for connection to a flexible hose
without the use of a back-up wrench.
b. All water connections and electrical knockouts must be in the compressor compartment corner post as to not interfere with the
serviceability of unit. Contractor shall be
responsible for any extra costs involved in
the installation of units that do not have this
feature.
3. Unit Controls:
a. Safety controls including a high-pressure
switch, a low-pressure sensor, and a low
water and low air temperature sensor.
Access fittings shall be factory installed on
high and low pressure refrigerant lines to
facilitate field service.
b. Activation of any safety device shall prevent
compressor operation via a lockout device.
The lockout shall be reset at the thermostat
or at the contractor-supplied disconnect
switch.
c. Units which may be reset only at the disconnect switch only shall not be acceptable.
4. The standard Complete C control electronic
control system shall interface with a heat pump
(Y,O) wall thermostat (mechanical or electronic). The control system microprocessor
board shall be specifically designed to protect
against building electrical system noise contamination, EMI, and RFI interference. The control
system shall have the following features:
a. 50 VA transformer.
b. Performance Monitor (PM). The PM warns
when the heat pump is running inefficiently.
c. Anti-short cycle time delay on compressor
operation time delay shall be 5 minutes
minimum.
d. Random start on power up mode.
e. Low voltage protection.
f. High voltage protection.
g. Unit shutdown on high or low refrigerant
pressures.
h. Unit shutdown on low water temperature.
i. Water coil freeze protection (selectable for
water or antifreeze).
j. Air coil freeze protection (check filter
switch).
k. Condensate overflow shutdown.
l. Option to reset unit at thermostat or disconnect. Fault type shall be retained in memory
if reset at thermostat.
m. Automatic intelligent reset. Unit shall automatically reset 5 minutes after trip if the fault
has cleared. Should a fault reoccur 3 times
sequentially then permanent lockout will
occur.
n. Ability to defeat time delays for servicing.
o. Light-emitting diodes (LEDs) to indicate high
pressure, low pressure, low voltage, high
voltage, air/water freeze protection, condensate overflow and control status.
p. The low-pressure switch SHALL NOT be
monitored for the first 90 seconds after a
compressor start command to prevent nuisance safety trips.
q. Remote fault type indication at thermostat.
r. Selectable 24-v or pilot duty dry contact
alarm output.
s. 24-v output to cycle a motorized water valve
with compressor contactor.
t. Electric heat output to control two stages of
electric heat.
u. Service test mode for troubleshooting and
service.
5. Optional electronic Deluxe D Control shall have
all the features of the Complete C control with
the following additional features:
a. 75 VA transformer.
b. A removable thermostat connector.
c. Random start on return from night setback.
d. Intelligent reversing valve operation for
extended life and quiet operation.
e. Night setback control from low temperature
thermostat, with 2-hour override initiated by
a momentary signal from the thermostat.
f. Dry contact night setback output for digital
night setback thermostats.
g. Ability to work with heat/cool (Y, W)
thermostats.
h. Ability to work with heat pump thermostats
using O or B reversing valve control.
i. Single grounded wire to initiate night setback, or emergency shutdown.
j. Boilerless system control can switch automatically to electric heat at low loop water
temperature.
k. Dehumidistat input providing fan control for
dehumidification operating.
l. Multiple units connected to one sensor providing communication for up to 3 water
source heat pumps.
m. Selection of boilerless changeover temperature set point.
n. Compressor relay staging for dual stage
units or in master/slave applications.
I. Special Features:
1. Thermostat Controls:
a. Programmable multi-stage thermostat with
7-day clock, holiday scheduling, large backlit
display and remote sensor capability.
b. Programmable 7-Day Light Activated Thermostat offers occupied comfort settings with
lights on, unoccupied energy savings with
lights off.
c. Programmable 7-Day Flush Mount Thermostat offers locking coverplate with tamper
proof screws, flush to wall mount, dual point
with adjustable deadband, O or B terminal,
and optional remote sensor.
37
Guide specifications (cont)
d. Programmable 5-Day Thermostat offers
2 stage heat, 2 stage cool, auto changeover,
5-minute built-in compressor protection, locking cover included.
e. Non-programmable Thermostat with 2 heat
stages, 2 cool stages, auto changeover,
5-minute built-in compressor protection,
locking cover included.
38
2. Loop Controller with six stages (2 stages for
heating and 4 stages for heat rejection).
3. Filter Rack (50.8 mm) to enhance the filtration
system of the water source heat pump.
NOTE: Filter rack does not include filters.
39
Carrier Corporation • Syracuse, New York 13221
3-04A
2-04
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
Pg 40
Catalog No. 005-00040
Printed in U.S.A.
Form 50RHE-C1PD
Replaces: New
Tab 5a 5a