Carrier 50HQ User Manual download pdf (Page 8)

includes occupied comfort settings with lights on, unoccu-

pied energy savings with lights off.

Programmable 7-day flush-mount thermostat

offers the

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 termi-

nal, 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 compres-

sor 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 adjust-

able deadband, configurable display, self-prompting pro-

gram, and 4 settings per day.

Non-programmable thermostat

offers 2 heat stages, 2 cool

stages, auto changeover, 5-minute built in compressor pro-

tection, locking cover included, temperature display in

degrees F or C, keypad lockout, large display, back-lit dis-

play, O or B terminal, dual set point with adjustable dead-

band, and backplate with terminals.

Aquazone™ system control panel (50RLP) includes a

pre-programmed, 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, boil-

ers, and system pumps.

• 50RLP model nomenclature is used to customize the

panel to control all WSHP system requirements.

• Panel can be ordered with 2, 4, 6, or 8 stages of system

heat rejection.

• Panel can be ordered with 2, 4, 6, or 8 stages of system

heat addition.

• Panel can be ordered with unique WSHP zone opera-

tion capabilities for stand-alone systems (i.e., non-

communicating) to control 10 or 18 zones of WSHP

unit.

• Panel can be ordered to control variable frequency cool-

ing tower fan operation.

• System pumping operation can be configured for start/

stop, lead/lag, or variable frequency pump operation.

• Direct digital control (DDC) compatible using the Car-

rier Comfort Network® (CCN) and WSHP units using

PremierLink™ CCN controllers.

Filter rack (2 in.) is available in place of the standard

1-in. return air filter to enhance the filtration system of the

water source heat pump. The 2-in. filter rack does not

include filters.

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, 1

, 1

in.).

Ball valves (brass body) are used for shutoff and

balancing water flow and are available with memory,

memory stop, and pressure temperature ports. Valves con-

sist of UL-listed brass body, ball and stem type with Teflon*

seats and seals. Five sizes are available (

, 1, 1

in.).

Y strainers (bronze body) are “Y” type strainers with a

brass cap. With a maximum operating pressure rating of

450 psig, the strainer screen is made of stainless steel.

Strainers are available with blow down valves. Five sizes

are available (

, 1, 1

, 1

in.).

Solenoid valves (brass body) offer 3.5 watt coil,

24 volt, 50/60 Hz, 740 amps inrush, and .312 amp hold-

ing. Valves operate slowly for quiet system application.

Five sizes are available (

, 1, 1

, 1

in.).

Hose kit assemblies provide all the necessary compo-

nents 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 auto-

matic 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. Available sensors are for wall (wired and wire-

less) or duct mounted applications.

PremierLink™ accessories are available for providing a

fully integrated WSHP DDC system. Accessories include

supply air temperature sensors (with override and/or set-

point adjustment), communicating room sensors, CO

sen-

sors (for use in demand control ventilation), and linkage

thermostats (to control multiple units from one thermostat).

DIT

RVC

AQUAZONE™ SYSTEM CONTROL PANEL

Options and accessories (cont)

*Teflon is a trademark of E. I. du Pont de Nemours and Company.

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Carrier 50HQ User Manual Page 8

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