As7812 non-programmable electronic thermostat installation, operation & application guide • controls single stage heating/ cooling systems • single stage heat pump systems • compatible with gas, oil or electric systems • millivolt and hydronic (water or steam) system compatible • mercury-free, envir...
Table of contents parts diagrams .....................................................................................................1 specifications ........................................................................................................2 important safety information .................
Parts diagrams as7812 g o b y c r w non hp–hp gas elec sc2001 reset switch electric/gas jumper mode switch fan switch freeze switch high temp. Switch non hp – hp jumper.
Important safety information input: • voltage: 18-30 vac output: • maximum: 1 amp per terminal (3 amp total for all terminals) • temperature control ranges: 45°f to 90°f accuracy: ± 1°f • differential range: 1°f to 3°f • system configurations: single-stage heat, single-stage cool or single-stage hea...
Package contents/tools required package includes: as7812 non-programmable thermostat on base, thermostat cover, wiring labels, screws and wall anchors, installation, operation and application guide. Tools required for installation: drill with 3/16” bit, hammer, screwdriver. • the as7812 thermostat i...
To remove existing thermostat electrical shock hazard – turn off power at the main service panel by removing the fuse or switching the appropriate circuit breaker to the off position before removing the existing thermostat. 1. Turn off power to the heating and cooling system by removing the fuse or ...
To install thermostat (continued) 2. Move the fan auto/on switch to auto . 3. To remove cover, insert and twist a coin or screwdriver in the slots on the top of the thermostat. 4. Put thermostat base against the wall where you plan to mount it (be sure wires will feed through the wire opening in the...
Replace the old labels with the enclosed new labels: replacing wiring labels old new type f, g g fan control relay o o cool active reversing valve b b heat active reversing valve y, y6 y cooling control h, w, 4 w heating control c transformer, common side m, 4, rh, rs, r r transformer, hot side c y ...
4 or 5-wire, single transformer 24 vac t h e r m o s t a t r c y g 120 vac hot transformer fan control w b o heating control (optional) cooling control as7812 wiring diagrams heating and cooling.
4-wire, single transformer 24 vac t h e r m o s t a t r c y g 120 vac hot transformer fan control w b o heating control 3-wire, single transformer 24 vac t h e r m o s t a t r c y g 120 vac hot transformer w b o heating control heating only.
T h e r m o s t a t r c y g w b o t h e r m o s t a t r c y g w b o t h e r m o s t a t r c y g w b o 24 vac 120 vac hot transformer 24 vac 120 vac hot transformer 24 vac 120 vac hot transformer fan relay fan relay fan control cooling control compressor contactor reversing valve compressor contactor...
0 caution! : do not switch system to cool if the temperature is below 50°f. This can damage the air conditioning system and may cause personal injury. Do not short jumper across terminals on the gas valve or at the system control to test installation. Action: set the cool/off/heat switch to cool . P...
Setting the room temperature (setpoint temperature) step 1: press one of the arrow buttons; the current temperature setting displays. Step 2: press the or arrow button until the desired temperature setting displays. The new temperature setting is automatically saved. After 5 seconds, the display ret...
Symptom remedy the system isn’t turning on check the wiring (see installation, page 7) lcd is blank 24 vac is at thermostat. Thermostat is not properly controlling the fan check that the gas/electric jumper setting matches your system (gas or electric) thermostat is continuously turning on and off i...
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One-year limited warranty the seller warrants its products against defects in material or workmanship for a period of one (1) year from the date of manufacture. The liability of the seller is limited, at its option, to repair, replace or issue a non-case credit for the purchase prices of the goods w...
