McQuay PDAE Especificaciones Pagina 29
- Pagina / 32
- Tabla de contenidos
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
Catalog 1301 / Page 29 of 32
Engineering Guide Specications – 16" × 44" Flat Top Conguration
Hydronic Heat - Heat Fan Lock Out – When the control is in the heat mode and calling for heat, the indoor fan
shall not turn on until the HFLO sensor is above 115°F. If at any time while the unit is in heat mode the HFLO sensor
is below 95°F, the indoor fan shall turn off immediately. Control will check if the HFLO sensor temperature is above
115°F for 2 seconds before resuming indoor fan operation.
Hydronic with Intermediate Electric heat – Upon the call for heating and thereafter the HFLO sensor temperature
will be monitored. A trend in HFLO sensor Temperature shall determine which form of heat is to be used. If during
the 90 seconds that Hydronic is the heat source and the HFLO sensor is above 105°F and is increasing at 2°F per
minute then Hydronic is the heat source. If during this 90 seconds, the temperature of the HFLO sensor is above
105°F and is not increasing at 2°F per minute then Electric is the heat source. The hydronic valve is opened for 90
seconds. After 90 seconds whether Hydronic or Electric provides the heating is determined by the following:
If HFLO sensor temperature is less that 105°F, Electric provides the heat.
If HFLO sensor temperature is greater than 115°F, Hydronic provides the heat
Reverse Cycle Heat Pump with back-up electric heat – The reversing valve, the compressor, the outdoor
condenser fan motor and the indoor fan motor shall be energized. Reverse cycle heating shall occur when the outdoor
temperatures are 35°F and above. If outdoor coil temperature drops below 20°F or the Outdoor air temperature drops
to 35°F or less, Electric heat is the only source of heat. When the Outdoor coil temperature raises back to 40°F and
above, then the Compressor reverse cycle or Electric heater is used.
A temperature-sensing device shall be used to monitor the outdoor coil temperature to limit frost buildup. Defrosting
of the outdoor coil will be activated when outdoor coil temperature drops below 20°F of outdoor air temperature drops
to 35°F or less. Defrosting is terminated when outdoor coil temperature rises back to 40°F. During defrosting, both
compressor and the outdoor fan are turned off. The indoor fan will run at its set speed.
Condensation accumulated during reverse cycle heating must NOT be evaporated against the indoor coil so as
to prevent contamination of the indoor air with pollutants and odors. Condensation must be disposed of using a
(external) (internal) drain system as shown on plans.
On heat pump models, a Low Ambient temperature limit Sensor (OAS) shall be incorporated to energize the electric
resistance heaters at 35°F outdoor air temperature.
Reverse Cycle Heat Pump without back-up electric heat – The reversing valve, the compressor, the outdoor
condenser fan motor and the indoor fan motor shall be energized. Reverse cycle heating shall occur when the outdoor
temperatures are 35°F and above. If outdoor coil temperature drops below 20°F or the Outdoor air temperature drops
to 35°F or less, the compressor stops and there is no source of heat. When the Outdoor coil temperature raises back to
40°F and above, then the compressor reverse cycle is the heat source.
A temperature-sensing device shall be used to monitor the outdoor coil temperature to limit frost buildup. Defrosting
of the outdoor coil will be activated when outdoor coil temperature drops below 20°F of outdoor air temperature drops
to 35°F or less. Defrosting is terminated when outdoor coil temperature rises back to 40°F. During defrosting, both
compressor and the outdoor fan are turned off.
The indoor fan will stop if indoor coil temperature falls below 78°F. It will restart at its set speed when indoor coil
temperature rises back to 80°F.
Condensation accumulated during reverse cycle heating must NOT be evaporated against the indoor coil so as
to prevent contamination of the indoor air with pollutants and odors. Condensation must be disposed of using a
(external) (internal) drain system as shown on plans.
Control module – The PDAC/HP Control module is used to control a PDAC or PDHP unit that includes both an
integral air conditioner and a source of heat. The Digital Control is operated with a Touchpad, IR Remote or 24 volt,
Wall Mounted Thermostat.
- Catalog 1301 1
- Table of Contents 3
- Catalog 1301 / Page 4 of 32 4
- Room comfort 5
- The hydronic experts 6
- Quiet running 8
- Exceptionally Quiet Operation 8
- Digital touchpad control 10
- Display inputs: 11
- Other Customization Options 13
- Chassis Customization Options 13
- ARI Performance Data 14
- Top View 15
- Front View 15
- Side View 15
- 2" 16
- 8" (86mm) 16
- Accessories 17
- Wiring Diagrams 24
- During the cooling cycle: 28
- During the heating cycle: 28
- Inputs and outputs 30
Relacionado con productos y manuales para Acondicionadores de aire del sistema de división McQuay PDAE
(88 paginas)© 2020, manymanuals.es. Todos los derechos reservados | 0.051 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentarios a estos manuales