Carrier 50KQL-1PD User Manual
Product
Data
AQUAZONE™
50KQL07-19
Water Source Heat Pumps
Console Unit
1
/2to 11/2Nominal Tons
TM
Single-Package Console Water
Source Heat Pump with selfcontained line voltage thermostats.
• Suitable for either geothermal or
boiler/tower applications with
operating temperature range from
20 F to 110 F.
• Thermostatic expansion valve
(TXV) provides efficient and reliable
refrigerant flow
• Rubber grommet mounted
compressors for quiet operation
• Sloped top cabinet with powder
paint finish
• Right or left hand piping connection
• Multiple unit-mounted and remote
thermostat options
• Adaptable cabinet and subbase
configurations
• Factory-mounted flow regulators and
control valves for easy installation
• Flexible and reliable controls
accommodate all systems
Features/Benefits
Carrier’s Aquazone console
water source heat pumps are
a flexible, attractive
alternative for all finished
interior space, under-window
style installations.
Operating efficiency
Carrier Aquazone water source heat
pump (WSHP) units are designed for
quality and performance excellence
over their lifetime. Units offer standard
cooling EERs (Energy Efficiency
Ratios) up to 12.1 for boiler/tower
systems and as high as 19.5 for geothermal applications. Heating COPs
(Coefficient of Performance) are as
high as 4.9, among the highest in the
industry.
Copyright 2004 Carrier Corporation Form 50KQL-1PD
Quiet operation
The Carrier Console WSHP provides
exceptionally quiet operation for maximum comfort.
Design flexibility
Aquazone™ Console WSHP units are
offered in 5 capacity sizes and 3 different voltages to meet individual zone
needs efficiently and effectively.
Standard and extended operating
range units are available to suit a
variety of application requirements.
Safe, reliable operation
Standard safety features include: high
and low pressure monitoring and field
selectable water and air coil freeze protection sensing. All safety controls may
be reset at the thermostat. Each unit is
tested and run at the factory to ensure
proper operation of all components
and safety switches.
All components are carefully
designed and selected for endurance,
durability, and carefree day-to-day
operation.
The water-to-refrigerant heat
exchanger has copper inner and steel
outer tubing which is painted on the
outside to provide corrosion resistance
protection. Cupronickel heat exchangers are available and should be used on
all open loop applications.
Units are rated and certified in
accordance with ARI/ISO/ASHRAE
13256-1 performance standard, and
are CSA/NRTL listed.
Installation ease
The unit is packaged for simple, low
cost handling, with minimal time required for installation. The console unit
arrives at the jobsite fully assembled to
minimize installation time and reduce
installation cost. All units are pre-wired
and factory charged with R-22
refrigerant.
Water connections are available in a
variety of configurations direct from
the factory. The standard configuration
5
is
/8 in. OD Sweat connections for
maximum flexibility in the field. Both
FPT and MPT are available as factoryinstalled options to improve installation
efficiency. Additionally, factoryinstalled motorized water shutoff
valves are available for use on energy
conserving systems employing a
variable pumping technique.
The standard electrical connections
are made quickly and directly to a power distribution terminal block. To further improve installation efficiency, a
fused or unfused disconnect switch as
well as a 20 amp plug and cord are
available as factory-installed options.
5
A
/8 in. ID vinyl condensate connection is provided for connection to
the field-installed condensate line.
Compact cabinet design dimensions are 12 in. deep, 48 in. wide and
24 in. tall (with 3 in. subbase). For flexibility, the controls can be mounted on
the top right or left side. Additionally,
the sloped top design discourages the
use of the unit as a shelf or coffee holder, preventing air blockage and any
spills from damaging the unit.
No-fuss maintenance and
serviceability
Regular maintenance or service to the
console WSHP units require little time.
Large service access panels enable
quick inspection for problem solving
and the control box swings down for
easy access to the controls.
Fan motor sleeve bearings are
permanently lubricated for worry-free
performance. If the unit does require
service, an easily removable cabinet
and slide out fan section make access
simple.
Refrigerant circuit protection is designed to result in fewer service calls.
Units are equipped with easily accessible service access ports on both the
suction and the discharge refrigerant
lines for on-site testing and environmentally correct refrigerant recovery.
Filter racks provide easy filter access
for cleaning.
Maximum control flexibility
Aquazone water source heat pumps
provide reliable control operation using
a standard microprocessor board.
Flexible alternatives for many direct
digital control (DDC) applications include the Carrier Comfort Network
(CCN) and open protocol systems.
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.
Table of contents
Page
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ARI/ISO 13256-1 Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-13
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14,15
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-21
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-24
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-31
Typical Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33-36
2
NRTL/C
As an ENERGY STA R ®Partner,
Carrier Corporation has determined that this product meets
the E
NERGY STA R guidelines
for energy efficiency.
Features/Benefits (cont)
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, the unit
is automatically deactivated and placed
in a lockout condition. The sensor
recognizes thirty continuous seconds
of overflow as a fault condition.
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 — In applications
such as variable speed pumping, a
24-v output cycles a motorized water
valve or damper actuator with
compressor.
Performance Monitor (PM) —
Unique feature monitors water temperatures to warn when the heat pump
is operating inefficiently or beyond
typical operating range. A 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 provides
remote alarm activation.
Electric heat option — Output pro-
vided on the controller for operating
two stages of emergency electric heat.
Service test mode with diagnostic
LED (light-emitting diode) — Tes t
mode allows service personnel to
check the operation of the WSHP and
control system efficiently. Upon entering Test mode, time delays speed up,
and the Status LED flashes a code
indicating the last fault. This mode
provides easy fault diagnosis; based on
the fault code the status LED flashes,
Carrier provided troubleshooting tables
provide 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.
Carrier PremierLink™ controller adds reliability, efficiency,
and simplification
The PremierLink direct digital controller can be ordered as a factory-installed
option. Designed and manufactured
exclusively by Carrier, the controller
can be used to actively monitor and
control all modes of operation as well
as monitor the following diagnostics
and features: unit number, zone tem-
perature, zone set point, zone humidity
set point, discharge air temperatures,
fan status, stages of heating, cooling
stages, outdoor-air temperature,
leaving-air temperature, leaving water
temperature, alarm status, and alarm
lockout condition.
This controller has 38.4K baud
communications capability and is compatible with ComfortLink™ Controls,
CCN and ComfortVIEW™ Software.
The Scrolling Marquee and Navigator
are optional tools used for programming and monitoring the unit for optimal performance. Adding the Carrier
CO
sensor in the conditioned space
2
provides ASHRAE 62-99 compliance
and Demand Control Ventilation
(DCV). A DCV control strategy is especially beneficial for a water source heat
pump system to minimize the energy
used to condition ventilation air. In
combination with energy efficient
Aquazone units, DCV may be the most
energy efficient approach ever developed for a water source heat pump
system.
The PremierLink peer-to-peer,
Internet ready communicating control
is designed specifically for Constant
Volume and Variable Volume Temperature applications. This comprehensive
controls system allows water source
heat pumps to be linked together, creating a fully functional HVAC (heating,
ventilation, and air conditioning) automation system.
3
Model number nomenclature
50KQL07SAEC101AA
Aquazone™ High-Efficiency R-22
Water Source Heat Pump
50KQL – Console Unit
Size – Nominal Capacity (Tons)
07 – 1/2
09 – 3/4
12 –1
15 – 1 1/4
19 – 1 1/2
Water Circuit Options
Connection Type Valve Option
A – Sweat 2-Way Water Control Valve
B – Sweat Autoflow Regulator, 2.25 gpm/ton
C – Sweat Autoflow Regulator, 3.0 gpm/ton
D – Sweat 2-Way Water Control Valve with
E – Sweat 2-WayWater Control Valve with
F – FPT None
G – FPT 2-Way Water Control Valve
H – FPT Autoflow Regulator, 2.25 gpm/ton
J – FPT Autoflow Regulator, 3.0 gpm/ton
K – FPT 2-Way Water Control Valve with
L – FPT 2-Way Water Control Valve with
M – MPT None
N – MPT 2-Way Water Control Valve
P – MPT Autoflow Regulator, 2.25 gpm/ton
Q – MPT Autoflow Regulator, 3.0 gpm/ton
R – MPT 2-WayWater Control Valve with
S – Sweat None
T – MPT 2-Way Water Control Valve with
Water Supply Orientation
R – Right Hand
L – Left Hand
Control Options
A – Manual Changeover with Complete C
B – Manual Changeover with Deluxe D
C – Auto Changeover with Complete C
D – Auto Changeover with Deluxe D
P – PremierLink™ DDC Control†
R – Remote Thermostat with Complete C
S – Remote Thermostat with Deluxe D
*Right and left hand orientation is determined by looking at front of unit.
Right and left hand orientation is determined by looking at front of unit.
*
†Available with Complete C only.
†
For these options, unit must be hard wired (digit 15 must be “A”).
**20A plug and cord not available for 265V units.
††Sizes 07,09,12 only.
Autoflow Regulator, 2.25 gpm/ton
Autoflow Regulator, 3.0 gpm/ton
Autoflow Regulator, 2.25 gpm/ton
Autoflow Regulator, 3.0 gpm/ton
Autoflow Regulator, 2.25 gpm/ton
Autoflow Regulator, 3.0 gpm/ton
*
Power Termination
A – Field-Connected Hard Wired
B – 20A Plug and Cord**
D – Disconnect switch, 15A fuse
F – Disconnect switch, non-fused
H – 20A Plug, Cord, Receptacle,
Disconnect Switch, 15A Fuse
K – 20A Plug, Cord, Disconnect
Switch, No Fuse
Packaging
1 – Domestic
Revision Code
0 – Current revision
Power Supply
1 – 115V-1 Ph-60 Hz††
3 – 208/230V-1 Ph-60 Hz
4 – 265V-1 Ph-60 Hz**
Heat Exchanger and Operating Range
C – Copper heat exchanger, standard range
(60 to 95 F)
E – Copper heat exchanger, extended range (20 to 110 F)
F – Cupronickel heat exchanger, extended range
(20 to 110 F)
N – Cupronickel heat exchanger, standard range
(60 to 95 F)
Cabinet, Subbase and Mute Package Options
Std Mute Cabinet Subbase
AT Bottom return 3 in. Subbase
BU Bottom return 3 in. Subbase with
CV
DW Bottom return NO BASE
EY Bottom return 3 in. Subbase
FZ Bottom return 3 in. Subbase with
G1 Bottom return 5 in. Subbase with
H2 Bottom return NO BASE
J3 Front return NO BASE
K4 Front return NO BASE
L5 NO CABINET 3 in. Subbase
M6 NO CABINET 3 in. Subbase with
N7 NO CABINET 5 in. Subbase with
P8 NO CABINET NO BASE
Q9 NO CABINET 5 in. Subbase
R0 Bottom return 5 in. Subbase
SO Bottom return 5 in. Subbase
Bottom return
Locking control door
Locking control door Motorized Damper
Locking control door Motorized Damper
Locking control door
Locking control door
Locking control door
Motorized Damper
5 in. Subbase with
Motorized Damper
Motorized Damper
Motorized Damper
4
ARI/ISO 13256-1 capacity ratings
UNIT 50KQL
TC SC THR
COOLING HEATING
Input Power
(kW)
EER TC
Input Power
(kW)
COP
AIRFLOW
(cfm)
WATER
FLOW
(gpm)
PRESSURE
07 7.8 6.6 10.0 0.645 12.1 10.4 0.622 4.9 240 1.9 1.5
09 9.3 7.2 11.9 0.775 12.0 12.0 0.799 4.4 300 2.5 3.1
12 12.3 9.5 15.9 1.060 11.6 15.0 0.999 4.4 350 3.1 3.8
15 13.8 11.2 17.8 1.169 11.8 17.3 1.152 4.4 400 3.6 3.0
19 16.0 11.9 20.6 1.333 12.0 19.3 1.346 4.2 460 4.8 5.0
LEGEND NOTES:
ARI — Air Conditioning and Refrigeration Institute
COP — Coefficient of Performance
db — Dry Bulb Temperature
EER — Energy Efficiency Ratio
ISO — International Organization for Standardization
TC — Total Capacity (MBtuh)
THR — Total Heat of Rejection (MBtuh)
SC — Sensible Capacity (MBtuh)
1. Ratings are in accordance with and certified to ARI/ISO Standard
13256-1.
2. Cooling Standard: 80.6 F db, 66 F wb indoor entering air temperature, 86 F entering water temperature.
3. Heating Standard: 68 F db indoor entering air temperature, and
68 F entering water temperature.
wb — Wet Bulb Temperature
Physical data
BASE UNIT 50KQL 07 09 12 15 19
NOMINAL COOLING CAPACITY (Btuh)
COMPRESSOR
BLOWER
Motor Horsepower
Wheel Size D x W (in.) 2 each
FILTER SIZE (in.) Bottom Return
FILTER SIZE (in.) Front Return
UNITWEIGHT(lb)
Shipping
Operating
REF. TO AIR HEAT EXCHANGER
Face Area (sq ft)
No. of Rows Deep
Copper Tube Size OD (in.)
Fin Spacing (FPI)
REFRIG. CHARGE (R-22)/CKT (oz)
No. of Circuits
UNIT CABINET WITH STANDARD SUBBASE
WxHxD(in.) 48 x 24 x 12 48 x 24 x 12 48 x 24 x 12 48 x 24 x 12 48 x 24 x 12
WATER IN/OUT SIZE OD SWEAT (in.)
CONDENSATE SIZE ID VINYL (in.)
7,800 9,300 12,300 13,800 16,000
Rotary
51/4x61/
8x29
7x29
181
173
1
/
1.4
3
13
16
5
5
1
1
2
1
20
/2x3/
/2x1/
/
8
/
8
/
8
4
8
8
1
/
15
51/4x61/
8x291/2x3/
7x291/2x1/
185
177
1.4
2
3
/
8
13
16
1
5
/
8
5
/
8
1
/
15
4
8
8
51/4x61/
8x291/2x3/
7x291/2x1/
4
8
8
195
187
1.4
3
3
/
8
13
21
1
5
/
8
5
/
8
1
/
6
51/4x61/
8x291/2x3/
7x291/2x1/
201
193
1.8
3
3
/
8
13
27
1
5
/
8
5
/
8
4
8x291/2x3/
8
7x291/2x1/
8
51/4x61/
DROP
(ft wg)
1
/
6
206
198
1.8
3
3
/
8
12
24
1
5
/
8
5
/
8
4
8
8
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.
Thermostat options include a unit mounted Manual
Changeover (MCO) or Auto Changeover (ACO) thermostat. The temperature set point knob and push button
switches for fan speed and cool/heat mode (MCO) selection are conveniently located on the top. The thermostat
senses the return-air temperature. The thermostat sends
the appropriate signal to the controller for cooling or heating mode of operation.
Options R and S allow connection to a remote wallmounted thermostat. The Complete C controller requires a
heat pump thermostat. The Deluxe D controller can be
configured for heat pump or heat/cool thermostat.
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
60 F).
Cabinet options include a locking control panel for
added security. Bottom or front return with left or right
hand configurations are available for ease of installation.
Available with 3 or 5 in. subbase, with or without motorized damper.
Motorized fresh air damper with the unit-mounted
thermostat. Opens when LOW or HIGH fan speed selections are made from the push button switches. When
STOP or FAN ONLY selections are made the spring return
on the damper motor closes the damper. With remote
thermostat the motorized fresh air damper opens when the
fan is running.
Piping connections can be provided on either the right
or left hand side of the unit, for easy installation. Orientation is determined by facing the unit from the front side.
Automatic flow regulators include internally mounted
2.25 or 3.0 gpm/ton automatic flow regulating valves for
easier install
Two-way motorized control valve can be provided with
a copper or cupronickel heat exchanger 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. Standard two-way valve performance includes Cv of
2.9 and maximum operating pressure differential (MOPD)
of 125 psi.
Mute package includes high density noise suppression
material on front, right, and left sides of compressor
compartment and
insulated surfaces, for extra-quiet operation in the most
critical applications.
Deluxe D control system provides the same functions
as the Complete C while incorporating additional flexibility
and functions to include:
Thermostat input capabilities
shutdown mode and night setback with override (NSB)
potential. Night setback from low temperature thermostat
ation.
1
/2-in. fiberglass insulation on all
— Accommodate emergency
with 2-hour override is initiated by a momentary signal
from the thermostat.
Compressor relay staging
(units with 2 compressors and 2 Deluxe D controls) or in
master/slave applications.
Boilerless electric heat control system
changeover to electric heat at low loop water temperature.
Intelligent reversing valve operation
valve operation for extended life and quiet operation.
Thermostat type select (Y, O or Y, W)
work and select heat pump or heat/cool thermostats (Y, W).
Reversing valve signal select (O or B)
for heat pump O/B thermostats.
Dehumidistat input
dehumidification operation.
Multiple units on one thermostat/wall sensor
for communication for up to three heat pumps on one
thermostat.
Boilerless changeover temperature
boilerless changeover temperature set point.
Accessory relays
cations including fan and compressor cycling, digital night
setback (NSB), mechanical night setback, water valve operation, and outside air damper operation.
Night low limit
either the push button switches, remote thermostat or the
energy management system, it is possible that the space
temperature could drop uncontrollably. The Night Low
Limit feature, with Deluxe D controller, helps maintain the
space temperature at a level that is the best compromise
between energy consumption and a safe space temperature. A thermostat located near the return air filter
activates the blower and compressor operation when the
space temperature falls below 50 F. When return air temperature is raised above 55 F the compressor and blower
stop.
Override function
units operating in occupied/unoccupied mode under the
control of an external timeclock or an energy management
system. A contact closure from the timeclock or energy
management system shorts the NSB and C terminal on the
Deluxe D controller signaling an unoccupied mode.
For units with the unit-mounted thermostat, pressing
override switch (located under control access door) will
override the unoccupied mode and allow the occupied
mode of operation to continue for a period of two hours.
The units with the remote wall-mounted thermostat
require a digital thermostat with the override function. In
unoccupied mode an accessory relay is energized on the
Deluxe D controller. The NO/NC contacts of the relay can
be used as appropriate input to the digital thermostat to
signal occupied/unoccupied mode. The thermostat selects
cooling/heating set points based on occupied/unoccupied
mode.
PremierLink™ controller is compatible with the Carrier
Comfort Network (CCN) and other building automation
systems (BAS). This control is designed to allow users the
access and ability to change factory-defined settings thus
expanding the function of the standard unit.
— Provides operation of fan control for
— Allow configuration for multiple appli-
— If the unit operation is turned OFF from
— An Override function is available for
— Used with dual stage units
— Allows automatic
— Minimizes reversing
— Provides ability to
— Provides selection
— Provides
— Provides selection of
6
50KQL CONTROL OPTIONS TABLE
OPTION CONTROLLER THERMOSTAT FUNCTIONS TRANSFORMER
A Complete C MCO — 50 VA
B Deluxe D MCO NIGHT LOW LIMIT 2-HR OVERRIDE 75 VA
C Complete C ACO — 50 VA
D Deluxe D ACO NIGHT LOW LIMIT 2-HR OVERRIDE 75 VA
P Complete C with PremierLink™ LINKAGE DDC SYSTEM 50 VA
R Complete C REMOTE — 50 VA
S Deluxe D REMOTE
LEGEND
ACO — Auto Changeover
DDC — Direct Digital Controls
MCO — Manual Changeover
NIGHT LOW LIMIT2-HR
OVERRIDE
75 VA
Field-installed accessories
Carrier’s line of Aquazone™ thermostats (used with
remote thermostat units) are both attractive and multi-
functional, accommodating stand-alone water source heat
pump installations.
Programmable 7-day thermostat
2-stage cool, auto changeover, 7-day programmable with
copy command, 4 settings per day, fully electronic, 24 vac,
backlit LCD, keypad lockout, no batteries required,
5-minute compressor protection, NEVERLOST™ memory,
3 security levels, temperature display in degrees F or C.
Programmable 7-day light-activated thermostat
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
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
2-stage cool, auto changeover, 5-minute built-in compressor protection, locking cover included, temperature display
in degrees F or C, 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
2 cool stages, auto changeover, 5-minute built in compressor
protection, locking cover included, temperature display in
degrees F or C, keypad lockout, large display, back-lit display, O or B terminal, dual set point with adjustable deadband, backplate with terminals.
Aquazone system control panel includes a preprogrammed, easy to use, Carrier Comfort Controller set
up for a WSHP system.
• Coordinates, monitors, and controls all WSHP units
and ancillary equipment including cooling towers, boilers, and system pumps.
• 50RLP model nomenclature is used to customize the
panel to control all WSHP system requirements.
• Panel can be ordered to include 2, 4, 6, or 8 stages of
system heat rejection.
• Panel can be ordered to include 2, 4, 6, or 8 stages of
system heat addition.
— Offers 2-stage heat,
— Offers
— Offers
— Offers 2-stage heat,
— Offers 2 heat stages,
• Panel can be ordered with unique WSHP zone operation
capabilities for stand alone systems (i.e., non-communicating)
to control 10 or 18 zones of WSHP units.
• Panel can be ordered to control variable frequency cooling tower fan operation.
• System pumping operation can be configured for start/
stop, lead/lag, or variable frequency pump operation.
• Direct Digital Control compatible using the Carrier
Comfort Network (CCN) and WSHP units utilizing
PremierLink CCN controllers.
Fire-rated hoses are 2 ft long and have a fixed MPT on
one end and a swivel with an adapter on the other end.
Hose kits are provided with both a supply and return hose
and can be either stainless steel or galvanized. Five sizes
are available (
1
/2, 3/4, 1, 11/4, 11/2 in.).
Ball valves (brass body) used for shutoff and balancing
water flow. Available with memory, memory stop, and
pressure temperature ports. UL-listed brass body, ball and
stem type with Teflon seats and seals. Five sizes are avail-
1
/2, 3/4, 1, 11/4, 11/2 in.).
able (
Y strainers (bronze body) are “Y” type strainers with a
brass cap. Maximum operating pressure rating of
450 psi. Strainer screen made of stainless steel. Available
with blow down valves. Five sizes are available (
1
/4, 11/2 in.).
1
1
/2, 3/4, 1,
Solenoid valves (brass body) offer 3.5 watt coil,
24 volt, 50/60 Hz, 740 amps inrush, .312 amps holding.
Slow operation for quiet system application. Five sizes are
available (
1
/2, 3/4, 1, 11/4, 11/2 in.).
Hose kit assemblies provide all the necessary components to hook up a water-side system. Supply hose
includes a ported ball valve with pressure temperature
(P/T) plug ports, flexible stainless steel hose with swivel
and nipple. Return hose includes a ball valve, preset automatic balancing valve (gpm) with two P/T ports, flexible
stainless steel hose with a swivel and nipple, balancing
valve, and low-pressure drop water control valve.
Remote sensors are available for Aquazone flush mount
thermostats. Sensors are available for wall (wired and wireless) or duct mounted applications.
PremierLink™ accessories are available to provide a
fully integrated WSHP DDC system. Accessories include
supply air temperature sensors (with override and/or setpoint adjustment), communicating room sensors, CO
sen-
2
sors (for use in demand control ventilation), and linkage
thermostats (to control multiple units from one thermostat).
7
Options and accessories (cont)
CARRIER AQUAZONE™ THERMOSTATS
(FOR USE WITH REMOTE THERMOSTAT UNITS)
Carrier
®
Pm
AUTO
7-DAY PROGRAMMABLE/LIGHT-ACTIVATED
PROGRAMMABLE
COOL
HEAT
R
COOL
AUTO
HEAT
7-DAY PROGRAMMABLE FLUSH MOUNT
5-DAY PROGRAMMABLE/NON-PROGRAMMABLE
PREMIERLINK™ COMMUNICATING CONTROL
8
Dimensions
50KQL BOTTOM RETURN CABINET DIMENSIONS — RIGHT HAND PIPING
1.75
(44.5)
Filter located inside and at
top of air inlet area. Push
tabs back and down to release
filter for replacement.
AIR INLET AREA
33.5
(851)
Control Access Door
48.0
(1219)
48.0
(1219)
BOTTOM VIEW
FRONT VIEW
1.9
(48)
10.0
(254)
16
(406)
5
(127)
30
Air
Inlet
R.H. Pipe &
Electric Area
0.75
(19)
Discharge
Air
°
SIDE
VIEW
11.5
(292)
12.0
(305)
3.5
(88.9)
*23.9
(607)
*2.9
(74)
1 (25)
1 (25)
REAR
ACCESS
4.5
(114)
20
(508)
REAR VIEW
1.63
(41)
DAMPER OPENING*
48
(1219)
11.75
(298)
3.5
(89)
0.59
(15)
9.81
(249)
*Dimension shown is with 3 in. subbase. Add 2 in. to dimension shown for 5 in. subbase.
NOTES:
1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.
2. Optional autoflow valve, motorized water valve and disconnect box are shown.
Notes:
1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.
Shown is 76mm subbase. Add 50.8mm to dimension shown for 127mm subbase.
1.56
(40)
(533)
*2.9
(74)
21
9
Dimensions (cont)
50KQL BOTTOM RETURN CABINET DIMENSIONS — LEFT HAND PIPING
1.75
(44.5)
Filter located inside and at top of air
inlet area. Push tabs back and down
to release filter for replacement.
L.H. Pipe &
10.0
(254)
Electric Area
0.75
(19)
AIR INLET AREA
33.5
(851)
48.0
(1219)
48.0
(1219)
BOTTOM VIEW
Control Access Door
FRONT VIEW
1.9
(48)
12.6
(320)
1.5
(38)
Air
Inlet
Discharge
Air
30°
SIDE
VIEW
11. 5
(292)
12.0
(305)
3.5
(88.9)
*23.9
(607)
*2.9
(74)
1.56
(40)
3.5
(89)
REAR VIEW
1.63
(41)
REAR
ACCESS
DAMPER OPENING*
11.75
48.0
(1219)
*Dimension shown is with 3 in. subbase. Add 2 in. to dimension shown for 5 in. subbase.
NOTES:
1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.
2. Optional autoflow valve, motorized water valve and disconnect box are shown.
Notes:
1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.
Shown 76mm subbase. Add 50.8mm to dimension shown for 127mm subbase.
2. Optional autoflow valve, motorized water valve and disconnect box are shown.
(298)
0.59
(15)
9.9
(251)
4.5
(114)
20.0
(508)
1 (25)
1 (25)
*2.9
(74)
21.0
(533)
10
21.0
(533)
12.0
(305)
50KQL FRONT RETURN CABINET DIMENSIONS — RIGHT HAND PIPING
5
30°
Air
Inlet
R.H. Pipe &
Electric Area
Discharge
Air
SIDE
VIEW
FRONT VIEW
48.0
(1219)
BOTTOM VIEW
Control Access Door
43.7
(1110)
Filter located behind return
air grille and requires removal of
cabinet front for access.
48.0
(1219)
16
(406)
(127)
7.9
(201)
12.0
(305)
3.5
(88.9)
21.0
(533)
1 (25)
1 (25)
4.5
(114)
REAR VIEW
20.0
(508)
REAR
ACCESS
48.0
(1219)
NOTES:
1. All dimensions are shown in inches. Dimensions in parentheses are in millimeters.
Notes:
1.
All
2. Optional autoflow valve, motorized water valve and disconnect box are shown.
dimensions are shown in inches. Dimensions in parentheses are in millimeters.
2. Optional autoflow valve, motorized water valve and disconnect box are shown.
21.0
(533)
11
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