Specifications

84
ENVISION COMMERCIAL SPECIFICATION CATALOG
The 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˝ threaded rods.
Unit sizes 009-030 shall include four brackets. Unit sizes 036-
072 shall include six 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 three heating and
two cooling stages 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˝ •
and 3/4˝ hose kits; max. working pressure of 350 psi
[kPa] for 1˝ and 1-1/4˝ 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 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
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˝ •
and 3/4˝ hose kits; max. working pressure of 350 psi
[2413 kPa] for 1˝ and 1-1/4˝ 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/tempera-
ture) 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˝ •
and 3/4˝ hose kits; max. working pressure of 350 psi
[2413 kPa] for 1˝ and 1-1/4˝ hose kits.
Minimum burst pressure of four times working pressure.•
Electronic Air Cleaner (field-installed)
A 1˝ [25 mm] electronic air cleaner, cleanable 97% efficiency at
0.3 microns and larger, shall be provided in lieu of the standard
throwaway filter. The initial pressure drop across the filter shall
not exceed 0.2 in. w.g. at 300 fpm force velocity.
Electrostatic Air Cleaner (field-installed)
A 1˝ [25 mm] electrostatic air cleaner, cleanable 90% efficiency,
shall be provided in lieu of the standard throwaway filter. The
initial pressure drop across the filter shall not exceed 0.15 in. w.g.
at 300 fpm force velocity.
AlpinePure MERV 13 Filter
A 2˝ thick [51 mm] MERV 13 filter can help fulfill a credit under
the LEED Rating System. Its low initial resistance promotes low
energy consumption (0.21 in. w.g. @ 300 fpm) and provides
nearly twice the life of a standard filter (300 fpm vs. standard
500 fpm application).
4˝ Pleated Filter Accessory
A 4˝ thick [102 mm] MERV 11 filter and filter rack shall be pro-
vided in lieu of the standard filter and rack.
Earth Loop Flow Center (field-installed)
A self-contained module shall provide all liquid flow, fill and
connection requirements for ground source closed loop sys-
tems up to 20 GPM. The pumps shall be wired to a power block
located in the nearest unit. The heat pump units shall contain
low voltage pump slaving control so that two units may share
one flow center.
Auxiliary Heater (field-installed 208-230V units only)
An electric resistance heater shall provide supplemental and/or
emergency heating capability. Vertical units shall have the con-
trol box and resistance heater coil assembly mounted internally.
For horizontal units, the control box shall be mounted internally
while the resistance heater coil assembly shall be mounted
externally. A low voltage plug shall be provided in each unit
for quick auxiliary heat connection. The heater shall operate in
sequenced stages as controlled by the unit’s Premier micro-
processor. The heater shall feed line voltage power to the unit
blower and transformer to provide emergency heat capability in
the event of an open compressor circuit breaker.
Hot Water Generator
An optional heat reclaiming hot water generator coil of vented
double-wall copper construction suitable for potable water shall
be provided. The coil shall be factory mounted inside the unit. An
internal pump is not included. Order DPK4 for field installed pump
and temperature limit.
Engineering Guide Specications cont.