Introduction; Device Description; Control Application - Honeywell T7350 System Engineering

T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT

INTRODUCTION

Device Description

The T7350H is a L M
ON ARK
networking capability in a L
transformer-coupled Free Topology Transceiver (FTT). See
Fig. 1.
The T7350H communicates with many L
including the following:
— Other T7350H Communicating Commercial Thermostat
devices.
— T7300F/Q7300H Commercial Thermostat/Communicating
Subbase.
— Excel 15 S7760A Command Display.
— Excel 10 W7750A,B,C Constant Volume Air Handler Unit
(CVAHU) Controller.
— Excel 15 W7760A, B, C Building & Plant Managers.
— Excel 10 W7751B, D, F, H, J Variable Air Volume Terminal
Unit Controllers.
— Excel 10 W7752D, E, F, G Fan Coil Unitcontrollers.
— Excel 10 W7753A Unit Ventilator Controller.
— Excel 10 W7762A,B Hydronic Controllers.
— Excel 10 W7763C, D, E Chilled Ceiling Controllers.
NOTEBOOK PC
MODEM
63-4368
®
certified thermostat that provides
®
W system using a
ON ORKS
ARK ®
M devices
ON
BUILDING MANAGER
EXCEL 15
W7760
17
RS-232
SERIAL
PORT
SLTA
MODEM
BUILDING MANAGER
EXCEL 15
W7760
17
RS-232
SERIAL
PORT
SLTA
Fig. 1. Typical T7350H L

Control Application

The T7350H programmable communicating Thermostat
controls commercial single zone heating, ventilating and air
conditioning (HVAC) equipment through staged and
modulating outputs. The T7350H consists of a two piece
assembly with a thermostat cover and subbase. The
thermostat cover includes the keypad and display for 7-day
programming. Calendar programming is available through a
direct connect PDA (Configuration Tool) or network
(L S ™ with model T7350H) tool configuration. The
ON PEC
subbase includes equipment control, inputs and network
connections. The subbase mounts on the wall and the
thermostat cover mounts to the subbase. In addition, the
T7350H model can communicate local sensor data, schedule
information, master clock operations and accept configuration
and override instructions to or from other devices/tools in a
ORKS ®
L W
ON
application in a three-stage heat and two-stage cool heat
pump system. For additional hookups, see Fig. 10 through 12.
1 4 8 12 16
23 30 31 37 44
LonWorks
S7760
Select
Back
1 4 8 12 16
23 30 31 37 44
LonWorks
S7760
Back Select
ORKS ®
W network diagram.
ON
2
network. Fig. 9 shows a typical T7350H
WALL MODULE
EXCEL 10
CVAHU
BUS
T7350H
WALL MODULE
EXCEL 10
CVAHU
BUS
T7350H
M22490