Recognize this symbol as a safety precaution. Attention installing personnel prior to installation, thoroughly familiarize yourself with this installation manual. Observe all safety warnings. During installation or repair, caution is to be observed. It is your responsibility to install the product s...
2 to prevent the risk of property damage, personal injury, or death, do not store combustible materials or use gasoline or other flammable liquids or vapors in the vicinity of this unit. Carbon monoxide poisoning hazard - special warning for installation of furnace or air handling units in enclosed ...
3 2.2 handling use caution when transporting/carrying the unit. Do not move unit using shipping straps. Do not carry unit with hooks or sharp objects. The preferred method of carry- ing the unit after arrival at the job site is to carry via a two- wheel hand truck from the back or sides or via hand ...
4 dfk-b downflow kit dfk-c downflow kit dfk-d downflow kit aruf18b14** aruf30c14** aruf48d14** aruf24b14** aruf36c14** aruf60d14** aruf30b14** aruf42c14** arpt36d14** arpt18b14** arpt36c14** arpt42d14** arpt24b14** aspt30c14** arpt48d14** arpt30b14** aspt36c14** arpt60d14** aspt24b14** asuf39c14** a...
5 upflow downflow figure 2 figure 3 horizontal left figure 4 horizontal right figure 5 downflow bracket center support filter bracket control deck upper tie plate filter access panel internal part terminology figure 6 note: if removing only the coil access panel from the unit, the filter access pane...
6 important note: ensure coil slides on the rails along the groove provided on the drain pan side walls. Failure to do so will result in improper condensate drainage. Coil slides on the downflow bracket coil installation for downflow figure 8 access panel configuration for downflow or horizontal rig...
7 note: the use of a heat shield is strongly recom- mended when brazing to avoid burning the serial plate or the finish of the unit. Heat trap or wet rags must be used to protect heat sensitive components such as ser- vice valves and txv valves sensing bulb. 7.4 tubing connections for flowrator mode...
8 a secondary condensate drain connection has been provided for areas where the building codes require it. Pitch all drain lines a minimum of 1/4" per foot to provide free drainage. Provide required support to the drain line to prevent bowing. If the secondary drain line is required, run the line se...
9 the heating mode temperature rise is dependent upon the system airflow, the supply voltage, and the heat kit size (kw) selected. Use data provided in tables 2, 3 and 4 to deter- mine the temperature rise (°f). Note: for installations not indicated above the following formula is to be used: tr = (k...
10 3 5 6 8 10 15 19 20 25 29 715 715 715 715 875 39 1170 1170 1170 1170 1345 1345 49 1170 1170 1170 1170 1345 1345 59 1590 1590 1590 1590 1715 1715 1715 *asuf heater (kw) *table applies to asuf**14** table 7 minimum cfm required for heater kits 12 electrical and control wiring important: all routing...
11 12.4 electrical connections – supply voltage important note: use copper conductors only. Knockouts are provided on the air handler top panel and sides of the cabinet to allow for the entry of the supply voltage conductors, as shown in figure 13. If the knockouts on the cabinet sides are used for ...
12 13 achieving 2% low leakage rate ensure all the gaskets remain intact on all surfaces as shipped with the unit. These surfaces are areas between the upper tie plate and coil access panel, blower access and coil ac- cess panels, and between the coil access and filter access panels. Ensure upon ins...
13 airflow data (cfm) for aruf**14** models table 9 airflow data (cfm) for arpt**14** models table 10 airflow data notes: • airflow data indicated is 230v without air filter in place. • the chart is for information only. For satisfactory operation, external static pressure must not exceed value show...
14 airflow data airflow data (cfm) for aspt**14** models table 11 notes: • airflow data indicated is 230v without air filter in place. • the chart is for information only. For satisfactory operation, external static pressure must not exceed value shown on rating plate. The shaded area indicates rang...
15 high voltage! Disconnect all power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. Warning wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. Room thermostat w y...
16 wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. High voltage! Disconnect all power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. Warning important: if outdo...
17 aspt/asuf thermostat connections notes: 1) outdoor thermostat (ot-1) should be the first to close and the last to open. 2) jumper w1 and w2 together if ot-2 is not used. 3) remove wire when using outdoor thermo- stat. Nomenclature: ot - outdoor thermostat (optional) ehr - emergency heat relay (op...
18 wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. High voltage! Disconnect all power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. Warning notes: 1) outdoor t...
19 high voltage! Disconnect all power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. Warning wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. Notes: 1) outdoor t...
20 wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. High voltage! Disconnect all power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. Warning 120/240vac tstat op...
21 high voltage! Disconnect all power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. Warning wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. Aruf**14**/arpt**14...
22 wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. High voltage! Disconnect all power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. Warning aspt**14**/asuf**14...
23 high voltage! Disconnect all power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. Warning wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. M9 m10 tl fl htr1 h...
24 split systems air conditioning and heat pump homeowner’s routine maintenance recommendations we strongly recommend a bi-annual maintenance checkup be performed before the heating and cooling seasons begin by a qualified servicer. Replace or clean filter important note: never operate unit without ...