Table of Contents
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INSTRUCTIONS
REHAU PD1 AND PD2 THERMOSTAT
Table of Contents
Specifications ..............................................................................................................................................................1
Display / Keypad Operation ......................................................................................................................................2
General.........................................................................................................................................................................2
Sequence of Operation ..............................................................................................................................................4
Installation....................................................................................................................................................................6
View Menu ...................................................................................................................................................................8
Adjust Menu.................................................................................................................................................................9
Error Messages.........................................................................................................................................................15
Wiring Examples .......................................................................................................................................................17
Specifications
Programmable Thermostat PD1 One Stage Heat Art. 236457
Control - Microprocessor PI control; This is not a safety (limit) control.
Packaged weight - 0.46 lb. (210 g), Enclosure J, white PVC plastic.
Dimensions - 2-7/8" H x 2-7/8" W x 13/16" D (73 x 73 x 21 mm)
Approvals - CSA C US, meets ICES & FCC regulations for EMI/RFI.
Ambient conditions - Indoor use only, 32 to 122° F (0 to 50° C), < 90% RH non-
condensing.
Power supply - 24 V ±10% 60 Hz 3 VA
Relays - 24 V (ac) 2 A, Latching
Sensors - NTC thermistor, 10 k
Optional - REHAU #: 070, 071, 072, 073, 079.
Programmable Thermostat PD2 Two Stage Heat / Heat-Cool Art. 236467
Control - Microprocessor PI control; This is not a safety (limit) control.
Packaged weight - 0.46 lb. (210 g), Enclosure J, white PVC plastic
Dimensions - 2-7/8" H x 2-7/8" W x 13/16" D (73 x 73 x 21 mm)
Approvals - CSA C US, meets ICES & FCC regulations for EMI/RFI.
Ambient conditions - Indoor use only, 32 to 122° F (0 to 50° C), < 90% RH non-
condensing.
Power supply - 24 V ±10% 60 Hz 3 VA
Relays - 24 V (ac) 2 A, Latching
Sensors - NTC thermistor, 10 k
Included - None
Optional - REHAU type #: 070, 071, 072, 073, 079.
The information contained herein is believed to be reliable, but no representations, guarantees, or warrantees of any kind are made as
to its accuracy, suitability for particular applications or the results to be attained therefrom. Before using, the user shall determine
suitability of the information for user's intended use and shall assume all risk and liability in connection therewith. To the extent
permitted by law, REHAU DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE.
@ 77° F (25° C ±0.2° C) ß=3892
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@ 77° F (25° C ±0.2° C) ß=3892
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Table of Contents
Related Manuals for Rehau PD1
Summary of Contents for Rehau PD1
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Page 1: Table Of Contents
To the extent permitted by law, REHAU DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE. -
Page 2: Display / Keypad Operation
Display / Keypad Operation The thermostat’s display has four distinct fields. These fields are the Menu field, the Item field, the Number field and the Status field. The four buttons on the face of the thermostat are used to navigate through the menus and items to view and / or adjust the desired settings. - Page 3 ACCESS LEVELS The REHAU Programmable Thermostat has two access levels. These access levels restrict the number of items available in the menus of the thermostat.
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Page 4: Sequence Of Operation
Sequence of Operation PD1 (One Stage Heat) Air Sensor(s) Only Operation When operating with only an air sensor, the on time for the Heat relay is calculated to satisfy the requirements of the air sensor. Slab Sensor Only Operation When operating with only a slab sensor, the on time for the Heat relay is calculated to satisfy the requirements of the slab sensor. - Page 5 When operating with only a slab sensor, the on times for the Heat 1 and Heat 2 relays are calculated to satisfy the requirements of the slab sensor. The thermostat operates to maintain the slab at the minimum slab temperature setting Note: Operating with only a slab sensor can lead to either overheating or underheating of the space Air and Slab Sensor Operation...
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Page 6: Installation
Check the contents of this package. If any of the contents are missing or damaged, please contact your wholesaler or REHAU technical associate for assistance. Type PD1 Includes: One Programmable Thermostat PD1, PD1 / PD2 Instructions Type PD2 Includes: One Programmable Thermostat PD2, PD1 / PD2 Instructions ——————... - Page 7 Either an indoor, slab, or remote sensor may be connected to the S1 input. Connect the two wires from the auxiliary sensor to the Com and S1 terminals (3 and 4). Heat Relay (PD1 and PD2) The Heat (1) terminals (5 and 6) are an isolated output. There is no power available on these terminals from the thermostat.
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Page 8: View Menu
View Menu (1 of 1) – User access level Room Target The current desired air temperature for the space. This item is only available in the Installer access level. (Must have an active air sensor.) Room The current air temperature for the space. If the optional sensor is not used for the floor/slab but for the room, this is the average temperature. -
Page 9: Adjust Menu
3- Depending on the HEAT, COOL or AUTO option selected, the sequence of illustrated below will differ. Mode Current mode of operation the thermostat. OFF, HEAT (PD1) OFF, COOL, AUTO, HEAT (PD2) Room Heat (No Schedule) Desired temperature for heating. (Must have an active air sensor and be set to either Heat or Auto.) - Page 10 Adjust Menu 2 of 6) Room Heat UnOcc Desired temperature during un-occupied times. (Must have an active air sensor and be set to either Heat or Auto) 35 to 100° F (1.5 to 38.0° C) Room Heat Occ Desired temperature for occupied times. (Must have an active air sensor and be set to either Heat or Auto) 35 to 100°F (1.5 to 38.0°...
- Page 11 Adjust Menu (3 of 6) Room Cool Occ Desired temperature for cooling during Occupied times. (Must have an active air sensor and be set to either Cool or Auto) 35 to 100° F (1.5 to 38.0° C) Room Cool Sleep Desired temperature for cooling during Sleep time.
- Page 12 Adjust Menu (4 of 6) Slab Minimum Sleep Minimum slab temperature during Sleep time. (Must have an active slab sensor.) OFF, 34 to 122° F (OFF, 1.0 to 50.0° C) Slab Maximum Maximum slab temperature. This item is only available in the installer access level.
- Page 13 Adjust Menu (5 of 6) Cooling Cycle Determines the number of cycles per hour for the cooling equipment. This item is only available in the Installer access level. Auto, 2 to 12 Cooling Interlock Selects the time delay between the heating and cooling relays. This item is only available in the Installer access level.
- Page 14 Adjust Menu (6 of 6) Lite Sets the operation of the back lighting of the LCD. ON, Tmpy ON, OFF Units The units of temperature used to display the items. ° F, ° C Page 14 of 19...
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Page 15: Error Messages
Error Messages (1 of 2) E01 The thermostat was unable to read a piece of information stored in its memory. The thermostat was required to load the factory settings. The thermostat will stop operation until all settings are checked. To clear this error, select the Installer access level and check all of the settings in the Adjust and Schedule menus. - Page 16 Error Messages (2 of 2) Sensor 1 Open The auxiliary sensor connected to the Sens 1 terminal is open circuit. Locate and repair the problem as described in the appropriate sensor brochure. After the fault is corrected, press any button to clear the error message. Page 16 of 19...
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Page 17: Wiring Examples
(1 of 3) WIRING 24 V (AC) POWER AND AUXILIARY SENSORS 24 V (ac) 120 V (ac) Sensor Wires No Power Wiring to 24 V (ac) Zone Valve WIRING THE PD1 Zone Valve No Power 24V (ac) Class II Transformer... - Page 18 Wiring Examples (2 of 3) WIRING THE PD2 One Stage Heat with Zone Pump and Cooling One Stage Heat with Zone Valve and Cooling Unpowered Relay Zone Pump Zone Valve Cooling No Power Cooling No Power 24V (ac) 24V (ac) Class II Class II Transformer...
- Page 19 Wiring Examples (3 of 3) Two Stage Zone Pump and Zone Valve Two Stage with Zone Pump and Zone Valve Unpowered Relay Typical Powered Relay Stage 1 Zone Stage 1 Stage 2 Pump Stage 2 Zone Zone Zone No Power Pump Valve Valve...