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Table Of Contents

INSTALLATION INSTRUCTIONS

66-1202-01

W8735ER Wireless Outdoor Reset

Module

APPLICATION

The W8735ER Wireless Outdoor Reset Module, when

connected to the C7089R1013 Wireless Outdoor Sensor,

works with any AquaReset enabled Aquastat® such as the

L7224/48 Aquastat, S9360/61/80 Integrated Boiler Control,

and R7910 SOLA Control via the EnviraCOM™ 3-wire bus.

The Wireless Outdoor Reset Module enables efficiency

control functionality, such as Outdoor Temperature Reset,

Boost function, and Warm Weather Shutdown function to

generate average operational savings of up to 15%.

SPECIFICATIONS

Electrical Ratings: Voltage: 24 Vac, 60 Hz.

Environmental Ratings:

Temperature: -30 °F to +150 °F (-34 °C to +66 °C).

Humidity: 0 to 95% relative humidity, non-condensing.

Accessories (Can be ordered separately):

C7089R1013 Wireless Outdoor Temperature Sensor

FEATURES

• RedLink™ wireless communication protocol

• Fast wireless connection to outdoor sensor

• Enables Boiler Outdoor Temperature Reset

• Enables Warm Weather Shutdown

• Enables Boost Override

• Simple low-voltage, 3-wire installation to combustion

control (3 EnviraCOM)

• EnviraCOM™/RedLink Enabled

INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow them

could damage the product or cause a hazardous condi-

tion.

2. Check the ratings given in the instructions and on the

product to make sure the product is suitable for your

application.

3. The installer must be a trained, experienced service

technician.

4. After installation is complete, check out product opera-

tion as provided in these instructions.

CAUTION

Electrical Shock Hazard.

Can cause electrical shock or equipment damage.

Disconnect power supply before connecting wiring.

5. The Outdoor Reset Module can be wall mounted in any

orientation desired or dictated by the surroundings.

6. The holes are sized for the #6 sheet metal screws

(included).

7. Precise leveling of the product is not required.

Summary of content (8 pages)

PAGE 1
W8735ER Wireless Outdoor Reset Module INSTALLATION INSTRUCTIONS FEATURES • RedLink™ wireless communication protocol • Fast wireless connection to outdoor sensor • Enables Boiler Outdoor Temperature Reset • Enables Warm Weather Shutdown • Enables Boost Override • Simple low-voltage, 3-wire installation to combustion control (3 EnviraCOM) • EnviraCOM™/RedLink Enabled INSTALLATION When Installing this Product... 1. 2.
PAGE 2
W8735ER WIRELESS OUTDOOR RESET MODULE WIRING C7089R INSTALLATION Mount Outdoor Sensor CAUTION Do not mount the W8735ER on a metallic surface Before installing the C7089 sensor, make sure 2 AA (lithium preferred) batteries are inserted. See Fig. 2. as this can interfere with reception. CAUTION Electrical Interference (Noise) Hazard. Can cause erratic system operation.
PAGE 3
W8735ER WIRELESS OUTDOOR RESET MODULE Sensor Binding 6. The C7089R Outdoor Sensor must be bound with the W8735ER Wireless Outdoor Reset Module in order for communication between the two controls to be established. 7. NOTE: Pressing the CONNECT button on either the W8735ER or wireless sensor for 15 seconds or more will result in the unbinding of the wireless sensor and deactivation of the OTC functionality. To rebind the sensor to the W8735ER follow steps 1-7 in this section.
PAGE 4
W8735ER WIRELESS OUTDOOR RESET MODULE OPERATION 1203 Installation Instructions for more information. For SOLA, set-up of the reset curve is done using the S7910 or S7999 display (See Form Numbers 65-0315, 66-1175, and 68-0295 for more information.
PAGE 5
W8735ER WIRELESS OUTDOOR RESET MODULE Boost (design temperature) is the point at which the boiler should be set to its high limit setting. Setting the boiler temperature too low during the coldest periods will result in the inability to keep up with heat demand. This is the critical setting in avoiding call-backs.
PAGE 6
W8735ER WIRELESS OUTDOOR RESET MODULE Table 4. Programming Parameters. Table 3. Warm Weather Shutdown Settings and Defaults. Parameter name Warm Weather Shutdown Minimum value Aquastat Maximum Value 40 F (or Off) 70 F Default Off BOILER TEMPERATURE High Limit. Hdf High Limit Differential. LL**_ Low Limit. Ldf Low Limit Differential.
PAGE 7
W8735ER WIRELESS OUTDOOR RESET MODULE WIRELESS OUTDOOR RESET MODULE ALARMS AND TROUBLESHOOTING The W8735ER Wireless Outdoor Reset Module’s enhanced diagnostics provides information alerting of deteriorating boiler efficiency or if the system is not running optimally. Outdoor reset-related errors can be displayed on diagnostic tools and displays. Errors are also displayed on the Aquastat's 3-digit display. See Table 5 for available Outdoor reset-related error codes. Table 5.
PAGE 8
W8735ER WIRELESS OUTDOOR RESET MODULE Regulatory information Information sur Ia reglementation FCC Compliance Statement (Part 15.19) (USA only) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1 This device may not cause harmful interference, and 2 This device must accept any interference received, including interference that may cause undesired operation.