Emerson 850 manual

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The rules should oblige the seller to give the purchaser an operating instrucion of Emerson 850, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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First and foremost, an user manual of Emerson 850 should contain:
- informations concerning technical data of Emerson 850
- name of the manufacturer and a year of construction of the Emerson 850 item
- rules of operation, control and maintenance of the Emerson 850 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Emerson 850 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Emerson 850, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Emerson service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Emerson 850.

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Table of contents for the manual

  • Page 1

    Installation Instructions for Heating & Cooling Digital Model 850 5/1/1 Day Pr ogrammable Thermostat CONTENTS Preparations .................................................. 1 Thermostat Details ........................................ 1 Removing Old Thermostat ............................ 1 Mounting and Wiring .................................[...]

  • Page 2

    MOUNTING AND WIRING Take care when securing and routing wires so they do not short to adjacent terminals or rear of thermostat. Personal injury and/or property damage may occur. CAUTION ! ATTENTION! This product does not contain mercury. How- ever, this product may replace a unit which contains mercury. Do not open mercury cells. If a cell becomes [...]

  • Page 3

    www.white-rodgers.com MOUNTING AND WIRING CONTINUED FROM SECOND PAGE 4 ‡ The 24 Volt neutral connection to terminal C on the thermostat is not required if the batteries are replaced once a year with fresh “ AA ” Energizer ® alkaline batteries. RH 24 VAC 120 VAC Hot Neutral THERMOSTAT SYSTEM G W Figure 2. Typical wiring diagram for heat only,[...]

  • Page 4

    CHECK THERMOST A T OPERA TION www.white-rodgers.com 5 The Display 9 Indicates day of the week. 10 Flame icon ( ) is displayed when the SYSTEM switch is in the HEAT position. Snowflake icon ( )is displayed (non- flashing) when the SYSTEM switch is in the COOL position. Snowflake is displayed (flashing) if the thermostat is in lockout mode to prevent[...]

  • Page 5

    www.white-rodgers.com 1) Select Temporary Hold Time - The thermostat can hold any temperature you set it to for the amount of time you select on this option. Your choices are 0:00 to 8:00 hours in 15 minute increments. 0:00 disables the function Example: 1. You have selected 3:00 hours for the Temporary Hold time period. 2. With the thermostat set [...]

  • Page 6

    www.white-rodgers.com PROGRAMMING Y OUR THERMOST A T 6 This section will help you plan your thermostat ’ s program to meet your needs. For maximum comfort and efficiency, keep the following guidelines in mind when planning your program. • When heating (cooling) your building, program the tempera- tures to be cooler (warmer) when the building is[...]

  • Page 7

    Symptom P ossible Cause Corrective Action No Heat/No Cool/No Fan 1. Blown fuse or tripped circuit breaker . Replace fuse or reset breaker . (common prob lems) 2. Fur nace pow er switch to OFF . T ur n s witch to ON. 3. Fur nace blo wer compar tment door or Replace door panel in proper position to engage panel loose or not properly installed. safety[...]

  • Page 8

    Symptom P ossible Cause Corrective Action No Heat (continued) 5. Heating system requires ser vice or Diagonistic: Set SYSTEM Switch to HEA T and thermostat requires replacement. raise the setpoint abov e room temperature . Within a f ew seconds the thermostat should make a soft click sound. This sound usually indicates the thermostat is operating p[...]