Honeywell T8400C1099 manual

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Table of contents for the manual

  • Page 1

    ® U.S. Regi stered T rademar k Copyright © 2002 Honeywell • • All Righ ts Reserved INSTALLATION INSTRUCTIONS 69-1484-2 T8400C1099, T8401C1031 Electronic Thermostats The T8400 and T8 401 Thermostats provide single- stage, non-program mable temper ature control for 24V heat ing- cooling s ystems wi th manual c hangeover from heat to cool. Heat [...]

  • Page 2

    T8400C1099, T8401C103 1 ELECTRONI C THERMOSTATS 69-1484-2 2 Fig. 1. T ypical lo cation of thermost at. Fig. 2. Moun ting wallplate to wall. Setting Fan Operatio n (Fuel) Switch The fan oper ation (fuel) switc h is preset at the factory in the F position. See Fig. 3. This is the correct setting for most systems. If this system is an e lectric heat s[...]

  • Page 3

    T8400C1099, T8 401C1031 ELE CTRONIC THER MOSTATS 3 69-1484-2 Fig. 4. R estrict wiri ng to shad ed area (T8400C10 99 shown). Fig. 5. Wi ring connectio ns (T8400C 1099 shown). Fig. 6. T ypical ho okup of T8400C1 099 in heat-c ool system wit h single tran sformer . Fig. 7. T ypical ho okup of T8400C1 099 in heat-c ool system wi th two tr ansformers . [...]

  • Page 4

    T8400C1099, T8401C103 1 ELECTRONI C THERMOSTATS 69-1484-2 4 Fig. 9. T ypical ho okup of T8401C1 031 in heat-c ool system. Fig. 10. T ypica l hookup of T840 1C1031 in sin gle- stage heat pump s ystem. Mounting Thermostat to Wallplate 1. Engage the tabs at the top of the thermostat and wallplate. 2. Swing down the th ermostat and press t he lower edg[...]

  • Page 5

    T8400C1099, T8 401C1031 ELE CTRONIC THER MOSTATS 5 69-1484-2 SYSTEM Switch System swi tch setti ngs contr ol thermos tat op eratio n as follows: Cool: The thermo stat controls the coo ling system. Off: Both heati ng and cool ing are of f. Heat: The the rmostat controls the he ating system. Slide the SYSTEM switch in the bottom rig ht corner of the [...]

  • Page 6

    T8400C1099, T8401C103 1 ELECTRONI C THERMOSTATS 69-1484-2 6 NOTE: In installer setup mo de only , e ach press of th e ▲ key momentarily display s 01. Each press of the ▼ key momentarily displays 02 . When the keys are relea sed, these two- digit codes ar e no longer di splayed. 3. Press the ▲ key . Factory information is d isplayed. A typical[...]

  • Page 7

    T8400C1099, T8 401C1031 ELE CTRONIC THER MOSTATS 7 69-1484-2 3. Press the ▲ key to raise the tempera ture sett ing above the roo m temperature . Cooling system should shut do wn. NOTE: T o bypass the five-minute delay , see the Optional System C heckout section. Fan 1. Slide the SYSTEM switch to Off and the F AN switch t o On. The fa n shoul d ru[...]

  • Page 8

    69-1484-2 G .H. Rev . 1 1-02 Printed in Me xico www .honeywell.com/yourhome T8400C1099, T8401C103 1 ELECTRONI C THERMOSTATS Automation and Control Solu tions Honeywell Honeywell Limite d-Honeywell Lim itée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55 422 Scarborough, Ontar io M1V 4Z9[...]