Honeywell 202152TXR, 202150TXR User Manual

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e528 Smart Digital Thermostat

Product Guide

Overview

INNCOM's e4 Smart Digital Thermostat is a powerful, multi-purpose Direct Digital Control (DDC) device that can control virtually any HVAC system found in hotel guestrooms.

The three e4 models meet different application requirements. The e528 and e527 are wired and are typically used for new installation. The e529 is battery-powered and is designed to meet the needs of existing properties where rewiring is not practicable.

This document describes Model e528; information on the e529 and e527 can be found in their respective product guides.

Application

In its most basic form, the e528 functions as a programmable DDC thermostat, automatically adjusting fan speeds and valves to achieve set temperature (Note: Guests can manually select heat or cool by pressing the OFF/AUTO button and

cycling through OFF, AUTO, HEAT and COOL). The e528 is also an “intelligent” device capable of linking ancillary sensors and serving as an information gateway. For example, coupled with a magnetic door switch (wired or wireless), motion detectors, and other devices, the e528 becomes the brain of a highly effective Energy Management System (EMS) application, communicating EMS information requirements to central servers. It comes standard with five relays and can be equipped with an onboard Infrared (IR) or radio frequency (RF) transceiver and Passive Infrared (PIR) motion detector.

Figure 1 e528 Digital Thermostat

The e528 interfaces with all common HVAC unit voltage configurations (24 volt to 277 volt). The e528 can be installed in a wired or wireless INNCOM guestroom control system, which makes installation feasible and affordable in either new construction or retrofit installations.

Through interfaces with other devices and sensors, the e528 supports the following functions:

• Remote HVAC control

• Guestroom HVAC diagnostics

• Remote room occupancy indication

• Automatic lighting control

• Remote mini-bar access reporting

• Remote smoke detector annunciation

• Central Electronic Lock control

• Humidity control

• Remote drape control

• Outside temperature display

• Peak demand load shedding

• Property/Building Management System (PMS/BMS) interface

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Figure

2 e528 Graphic Inter

face

A centrally controlled EMS package is created when the e528 is connected to the property's Central Interface Network (CINET) with a pair of low voltage wires or by the property’s high-speed TCP/IP network with the addition of a TCT (an Ethernet gateway device). RF networking is possible with radio equipped models.

The e528 features a guest-friendly graphic interface with intuitive controls (Figure 2). A user guide for the e528, written primarily for installers and facility management personnel, is available (see References below).

Wireless Communication

2.4Ghz wireless RF

Table 1 e528 RF Characteristics

Performance 0dB 20dB

RF Data Rate 250kbps 250kbps Antenna Type SMT SMT

Indoor Range 70ft 100ft

Outdoor/ RF line-of-sight range 540ft 1000ft+ Transmit Power 1mW 10mW

Receive Sensitivity -94.6dBm -94.6dBm Frequency Band 2.4Ghz 2.4Ghz

Encryption AES-128 AES-128

Protocol 802.15.4 802.15.4 Frequency Channels 11-26 11-26

Ranges are determined by performing an RF link quality test using two identical e528 thermostats containing radios as defined in tables 2 and 3. The maximum distance threshold is based on a 95% overall link quality. Outdoor ranges were conducted in a low noise, free air environment. Indoor ranges are for reference. Indoor ranges are impacted by the ambient environmental noise floor, and building construction materials.

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IR5 (Infrared)

Table 2 e528 IR5 Characteristics

Performance IR5

Indoor Range Up to 80ft IR Data Rate 2500 bps

The IR Eye5 works within INNCOM's System-5 protocol and can be used in a fluorescent light environment. However, it may be subject to interference from plasma televisions, and care must be taken in situating the device if a plasma television is present.

Installation Requirements

Location: The e528 must be located on a partitioning interior wall, approximately 1.5 m (5 ft) above the floor, in a site of average temperature. It is important to ensure that the thermostat is located away from direct sunlight or radiant heat, air discharge grills, stairwells, outside doors, steam or water pipes, warm air stacks, unheated/uncooled areas, or sources of electrical or radio interference. The unit should not be placed on an outside wall or behind a door. It is essential that the e4 is mounted flush to the wall and mounted level in both the horizontal and vertical planes; incorrect mounting can degrade IR, PIR, and temperature measurement performance.

Installation Requirements for e4 equipped with PIR Motion Detection

The e4 thermostat can be equipped with a PIR detector to augment the energy management scheme by detecting motion in the guestroom. Consider the PIR’s view angle, range characteristics, and mounting position to ensure proper coverage. Figure 3 below shows the ranges of the flat and standard PIRs.

Flat PIR Detection Range (Single Pyro) Standard PIR Detection Range (Dual Pyro)

Figure 3 PIR Detection Ranges

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Figure

4 Mounting Assembly

Mounting: The e528 is usually mounted on a standard double-gang (4 x 4) junction box. If mounted on a single-

gang box, the left side (display side) of the e528 overlaps the wall area to the left of the junction box. A lowvoltage mounting plate, mud ring, or low-voltage caddy may be used for mounting 24 volt applications.

To mount the e528:

1) Remove the two small screws at the base of the e528.

2) Pull the bottom of the back-mounting plate slightly away from the front housing and then pull the backmounting plate down.

3) Position the back plate insulator within the mounting plate as shown in Figure 4.

4) Attach the mounting plate to the junction box, using the mounting screws provided with the e528. Ensure that the plate is mounted with the raised arrow pointing UP.

To simplify installing and removing the e528, the headers and sockets described below and shown in Figure 5 are located on the back of the e528. These accept pre-made wiring harnesses provided by INNCOM. (Note: Take care to note which e528 model is being used. Each model has slightly changed headers and connectors as identified in the drawings below.)

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Figure

5 Back View Showing Headers and Sockets

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Headers

The headers for the e528.2G, 3G and 4G* thermostats are substantially the same, though the layouts and labeling on the PCB are slightly different (see Figure 5 above). The statements and tables below detail only the headers that differ in function.

Low Voltage comm / device connector: This header accepts the provided 6-pin harness used to connect low voltage communication, door/window position switch, and other room devices to the e528. Table 3 shows the pinout for the 2G low voltage comm / device connector and lists typical functions for each pin. Table 3a shows pinout and function for the 3G and 4G. For specifics, refer to the as-built wiring diagrams.

Table 3. e528 2G Low Voltage Harness (P/N 62-1462) Pinout

Wire Color Female

Connector

Brown 1 1 Common GND Red 2 2 12VDC Out/In 12VDC Supply Orange 3 3 S5 Bus Data Tx/Rx or IN 2 Communication Bus Yellow 4 4 IN 1 Door, Window, PIR, Other Green 5 5 CINET B RS485 Twisted Pair Blue 6 6 CINET A RS485 Twisted Pair

Table 3a. e528 3G/4G Low Voltage Harness (P/N 62-1467) Pinout

Wire Color Female

Connector

Brown 1 1 Common GND Red 2 2 12VDC Out/In 12VDC Supply Orange 3 3 S5 Bus Data Communication Bus Yellow 4 4 Digital Input Door, Window, PIR, Other Green 5 5 No Connection Blue 6 6 No Connection

Male

Connector

Male

Connector

Function Comment

External temperature control sensor: This header accepts the wiring harness from an external temperature probe

that can be used to supply the e528 with remote temperature measurements. The e528 uses a 10K 1% thermistor for external temperature measurement. This external temperature sensor can be used to monitor room temperature at a different location from where the e528 is mounted or to monitor pipe water temperature.

RS485 Networks: (refer to Figure 5)

E528.2G can be connected to the RS485 FLN5 network by installing the 02-9496 module, then connecting the

RS485 network to pins 5 and 6 of the low voltage comm /device connector as described in Table 3 above.

E528.3G cannot act as the media gateway for in-room traffic towards the RS485 network. The most common way to connect the e528.3G is to connect a PC-485.S5 (P/N: 01-9905) on the S5bus.

E528.4G

E528.4G to 2G RS485 Networked Application: with or without door switch input (See Figure 6 below)

• Using the adapter (P/N 203-251), connect the harness from the wall box (P/N 62-1462) previously

connected to the thermostat being replaced to H1 of the adapter.

• Connect the harness H3 (rainbow) of 203-251 to the low voltage comm/device connection of the e528.4G

“2G,” “3G,” and “4G” are internal INNCOM product designations used for convenience to differentiate individual hardware configurations. No difference in device capability or effectiveness is implied. Due to end-oflife for certain 2G and 3G components, the e528.4G is now the standard INNCOM install, but 2G and 3G installations are still supported.

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