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Programmable Thermostats DPH521 Programmable 5-2 Heat Pump Thermostat Features: • Energy Star certified. • Separate programs for weekdays and weekends. • Preprogrammed – up to 4 programs per day. • Separate programs for heating and cooling. • Either system powered with battery backup or battery powered, (2) “AA” batteries included. • Lighted display with large liquid crystal display. • 5 minute air conditioning compressor delay. • Temporary and constant temperature override. • Total isolation between system power and thermostat. • For 2 stage heat pump applications. • Includes second stage and emergency heat indicator. Compatible With: • Most single stage 24V gas, oil, electric heating and air conditioning systems, including single stage heat pumps. • 2 wire hydronic systems. • Millivolt systems. • Hydronic air handler systems. Temperature Control Range: • 45ºF to 90ºF Program Settings: • 4 preset programs per day heating and cooling. All may be easily reprogrammed in 1º and 15 minute increments with programming dial. Circuit Protection: • Circuit protection is built-in, no isolation relays required. mfr# DPH521
description 5/2 Programmable Heat Pump Thermostat
webb# 320351
Pro 4000 5-2 Programmable Thermostat
Switching Positions MFR#
F.W. Webb Heating Catalog
Application
SYSTEM
Fan
Stages
TH4110D1007 1 Heat / 1 Cool Conventional and Heat Pump
COOL-OFF-HEAT
AUTO-ON
1 Heat/1 Cool
245718
TH4210D1005 2 Heat / 1 Cool Heat Pump
COOL-OFF-HEAT- AUTO-ON EM. HEAT
2 Heat/1 Cool
367579
F.W. Webb Company
WEBB#
169
thermostats
The PRO series provides programmable thermostats for 24 Vac conventional and heat pump systems or 750 mV heating systems. • Weekday/Weekend programming – 5-2 (Weekdays, Weekends) programming to fit your lifestyle. • Backlit digital display – both current and set temperatures are easy to read in various lighting conditions. Setting Temperature Range: • Heat: 40ºF to 90ºF
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