Specifications
83
RG SERIES ENGINEERING GUIDE
A detachable terminal block with screw terminals will be provided
for field control wiring. All units shall have knockouts for entrance
of low and line voltage wiring. The blower motor and control box
shall be harness plug wired for easy removal.
Option: A FX10 microprocessor-based controller that interfaces
with a multi-stage electronic thermostat to monitor and control
unit operation. The control shall provide operational sequencing,
blower speed control, high, low and loss of charge pressure
monitoring, freeze detection, condensate overflow sensing,
lockout mode control, hot water and loop pump control, LED
status and fault indicators, fault memory, field selectable options
and accessory output. The control shall communicate all mode,
status, fault and lockout codes to the front end system for fast and
accurate equipment diagnosis. The control shall provide fault retry
three times before locking out to limit nuisance trips.
Optional FX10 microprocessor control communication
protocols: N2, LonWorks, BACnet
Optional GeoStart
®
(compressor soft starter) shall be factory
installed for use in applications that require low starting amps,
reduced compressor startup noise, off-grid, and improved startup
behavior. GeoStart shall reduce normal starting current by 60% on
208-230/60/1 units.
Piping
Supply and return water connections shall be FPT copper fittings
fixed to the corner post, which eliminate the need for backup pipe
wrenches.
With vertical units, the condensate connection shall be a 3/4 in.
[19.1 mm] PVC socket with internally-trapped hose that can be
routed to front or side corner post locations.
Hanger Kit
(included with horizontal units only - field installed)
The hanger kit shall consist of galvanized steel brackets, bolts,
lock washers, and isolators and shall be designed to fasten to the
unit bottom panel for suspension from 3/8 in. threaded rods. Unit
sizes 009-070 shall include four brackets. Brackets shall not inhibit
filter removal in any way.
Accessories
Thermostat (field-installed)
A multi-stage auto-changeover electronic digital thermostat shall
be provided. The thermostat shall offer two heating stages and
one cooling stage with precise temperature control. An OFF-HEAT-
AUTO-COOL-EMERG system switch, OFF-AUTO blower switch,
and indicating LEDs shall be provided. The thermostat shall
display in °F or °C.
Hose Kits – Ball Valves (field-installed)
A flexible steel braid hose featuring Kevlar
®
reinforced EPDM
core with ANSI 302/304 stainless steel outer braid and fire rated
materials per ASTM E 84-00 (NFPA 255, ANSI/UL 723 & UBC
8-1). Ball valve at one end; swivel connector with adapter at the
other end (swivel to adapter connection via fiber or EPDM gasket).
Swivel connection provides union between heat pump and piping
system. The hoses feature brass fittings, stainless steel ferrules.
A full port ball valve shall be provided with integral P/T (pressure/
temperature) port on supply hose.
Specifications:
• Temperature range of 35°F [2°C] to 180°F [82°C].
• Max. working pressure of 400 psi [2757 kPa] for 1/2 in.
and 3/4 in. hose kits; max. working pressure of 350 psi
[kPa] for 1 in. and 1-1/4 in. hose kits.
Hose Kits – Automatic Balancing and Ball Valves
(field-installed)
A flexible steel braid hose featuring Kevlar
®
reinforced EPDM core
with ANSI 302/304 stainless steel outer braid and fire rated materi-
als per ASTM E 84-00 (NFPA 255, ANSI/UL 723 & UBC 8-1). Ball
valve at one end; swivel connector with adapter at the other end
(swivel to adapter connection via fiber or EPDM gasket). Swivel
connection provides union between heat pump and piping system.
The hoses feature brass fittings, stainless steel ferrules. A full
port ball valve shall be provided with integral P/T (pressure/tem-
perature) port on supply hose and automatic balancing valve with
integral P/T ports and full port ball valve on return hose.
Specifications:
• Temperature range of 35°F [2°C] to 180°F [82°C]
• Max. working pressure of 400 psi [2757 kPa] for 1/2 in.
and 3/4 in. hose kits; max. working pressure of 350 psi
[2413 kPa] for 1 in. and 1-1/4 in. hose kits
• Minimum burst pressure of four times working pressure
Hose Kits – Automatic Balancing and Ball Valves with ‘Y’
strainer (field-installed)
A flexible steel braid hose featuring Kevlar
®
reinforced EPDM
core with ANSI 302/304 stainless steel outer braid and fire rated
materials per ASTM E 84-00 (NFPA 255, ANSI/UL 723 & UBC
8-1). Ball valve at one end; swivel connector with adapter at the
other end (swivel to adapter connection via fiber or EPDM gasket).
Swivel connection provides union between heat pump and piping
system. The hoses feature brass fittings, stainless steel ferrules.
A “y” strainer is provided on one end for fluid straining and integral
“blowdown” valve. A full port ball valve shall be provided with
integral P/T (pressure/temperature) port on supply hose and
automatic balancing valve with integral P/T ports and full port ball
valve on return hose.
Specifications:
• Temperature range of 35°F [2°C] to 180°F [82°C]
• Max. working pressure of 400 psi [2756 kPa] for 1/2 in.
and 3/4 in. hose kits; max. working pressure of 350 psi
[2413 kPa] for 1 in. and 1-1/4 in. hose kits
• Minimum burst pressure of four times working pressure
Hot Water Pump Kit
An accessory pump kit is available for hot water generation option.
This kit includes hot water pump, fittings, and water heater kit
necessary for potable water application. Order DPK5 for use with
Aurora and FX10 controls.
Engineering Guide Specifi cations cont.