Aiphone IS-HTR Water Heater User Manual


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IS-HTR Instr.
0512JD
Aiphone Corporation
1700 130th AVE NE Bellevue, WA 98005
Ph: (800) 692-0200 Fax: (425) 455-0071
INSTALLATION: Flush mount unit
TOLL FREE TECHNICAL SUPPORT:
(800) 692-0200
E-MAIL: tech@aiphone.com
SPECIFICATIONS:
Temperature: -40°F to 140°F (-40°C to 60°C)
Heater Element: 23.04Ω (Resistive, Non-Inductive Pattern). 25 Watts (REF) at 24V
Thermostatically controlled
Thermostat Activation: On at 59°F (15°C), Off at 77°F (25°C)
Power: 24V AC/DC (Recommend Aiphone PS-2420UL)
Wiring distances (taking into account a maximum allowable voltage drop of 10%):
Wire/ Distance Reference table:
10AWG 11AWG 14AWG 16AWG 18AWG 22AWG
24V (25W) 1150’ 725’ 455’ 285’ 180’ 70’
Special Precautions:
Installation and servicing should only be done by qualied service personnel and conform to all local building
and electrical codes.
When a single power source is used for both the sub station and heater module, the sub station power
consumption must be taken into consideration when determining the wire gauge.
Application Suggestion:
Though not a requirement, it is recommended that a site-wide temperature controller be used in conjunction
with the main power source(s) for the heater(s) utilized. Ideally this would prevent unnecessary heater
activation during the summer months where heater operation is not necessary (but temperatures are below
the thermostat set point of 15ºC). Additionally, the reduced operation of the thermostat would also increase
the service lifespan of the heater module itself.
Note: When using the IS-HTR with IS series emergency stations, the external relay board wires
should not be run through the IS-HTR.
1. Ensure that the conformal side (orange) of IS-HTR is facing the door station. Route all door
station wiring through the wiring provision opening on the IS-HTR.
2. Connect the door station wiring to the unit and connect the IS-HTR wires (ying leads) to a power
source, 24V AC/DC.
3. Remove the 4 nuts and washers holding the plastic chassis to the metal front panel. Place the
IS-HTR as shown and reuse the nuts and washers to secure the IS-HTR to the door station.
Note: Ensure that there are no gaps between the door station and heater when installed.
4. Mount the door station and heater together to the desired backbox using the supplied hardware.
1. 2. 3.
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