Crestron CHV-TSTATEX Guia de Instalação descarregar pdf (Página 32)

Thermostats Crestron CHV-TSTAT and CHV-THSTAT

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Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163E

3. Slab Systems Definitions

Slab heating works from the ground up. The heating components are

installed below the floor or are embedded in a concrete slab. Heat radiates

from the floor to warm the space above. The CHV-TSTAT and

CHV-THSTAT support seven variations of slab heat systems.

SLAB 1: Floor warming only. Operates the slab heat to maintain a

particular slab temperature. System mode is enabled/disabled with Floor

Warming Heat and OFF inputs. Slab is maintained at the slab setpoint

temperature value. Connection to the slab output relay is terminal W1.

Refer to “Slab 1 – Floor Warming Only” which starts on page 35.

SLAB 2: 1-stage space heat with slab maximum. Maintains a particular air

temperature using the slab to heat the space. Does not heat over the slab

maximum temperature even if this results in the space being under-heated.

Connection to the slab output relay is terminal W1. Refer to “Slab 2 – 1-

Stage Space Heat with Slab Maximum” which starts on page 39.

SLAB 3: 1-stage space heat with slab maximum and slab minimum.

Performs the same operation as SLAB 2, and also keeps the slab at least as

warm as slab setpoint. This may result in the space being overheated to

maintain the slab minimum temperature. Connection to the slab output relay

is terminal W1. Refer to “Slab 3 – 1-Stage Heat with Slab

Minimum/Maximum” which starts on page 43.

SLAB 4A: 2-stage space heat with slab maximum and 1-stage cool.

Maintains the air temperature using the slab for heat, up to the slab

maximum. Augments the air heating by using a second stage of heat

(generally a forced air system). Allows the second stage to operate by itself

should the slab reach is maximum temperature and shut off. Cools the

space with cooling call. Intended for heat-cool type forced air systems, with

relay output connections to terminal W1 for slab, terminal W2 for second

stage heat, and terminal Y1 for cooling. Refer to “Slab 4A – 2-Stage

Heat/1-Stage Cool with Slab Maximum” which starts on page 47.

SLAB 4B: Same operation as SLAB4A, but intended for a heat pump type

second stage. Relay output connections are terminal W1 for slab heat, with

heat pump-type connections on terminals Y1/O/G for cooling and heating

calls. Aux heat is on terminal W2. Refer to “Slab 4B – 2-Stage Heat/

1-Stage Cool with Slab Maximum (Heat Pump)” which starts on page 51.

SLAB 5A: 1-stage space heat and cool with floor warming. Combines the

operation of a space heating/cooling thermostat with a floor-warming

thermostat. Maintains the slab at slab setpoint, and maintains the space at

the heat, cool, or auto setpoints. Systems effectively operate independently.

Heat/Cool/Auto/Off sets the space control modes, and Floor Warming

HEAT/OFF sets the slab mode. Intended for heat-cool style systems, with

slab connection on terminal W1, space heat on terminal W2, and space cool

on terminal Y1. Refer to “Slab 5A – 1-Stage Heat/Cool with Floor

Warming” which starts on page 55.

SLAB 5B: Same as SLAB5A, but for heat pump space systems, with slab

heat on terminal W1, and space heat/cool on terminals Y1/O/G. Aux heat is

on terminal W2. Refer to “Slab 5B – 1-Stage Heat/Cool with Floor

Warming (Heat Pump)” which starts on page 59.

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