Installation guide

ManualsBrandsPayne ManualsAir HandlerOfficial Payne fan coil

Installation Instruction

Direct Expansion Fan Coil Units

Sizes 018m071

PF1MNB

NOTE: Read the entire instruction manual be_bre starting the installation.

This symbol -_ indicates a change from the last publication.

SAFETY CONSIDERATIONS

hnproper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may

cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance.

The qualified installer or agency must use _actory-authorized kits or accessories when modifying this product. Refer to the individual instructions

packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read

these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and National Electrical Code

(NEC) for special requirements.

Recognize safety information. This is the safety-alert symbol Z_ • When you see this symbol on the unit and in instructions or manuals, be alert

to the potential for personal injury.

Understand the signal word, DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the

most serious hazards which will result in severe personal il_iury or death. WARNING signifies hazards which could result in personal injury or

death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage. NOTE is used

to highlight suggestions which will result in enhanced installation, reliability, or operation.

Z_ WARNING: Before installing or servicing unit, always turn off all power to unit. There may be more than '1 disconnect

switch. Turn off accessory heater power if applicable. Electrical shock can cause personal injury or death.

INTRODUCTION

Model PF1MNB Fan Coil Units are designed for flexibility and can be used for upflow, horizontal, or downflow applications.

----) These units are designed to meet the low air leak requirements cun'ently in effect. Because of this, the units need special attention in the condensate

pan and drain connection area and when brazing tubing. These units are available for application in systems of 18,000 through 60,000 Btuh

nominal cooling capacities. (See Fig. 2 and 3.) Factory-authorized, field-installed electric heater packages are available in 3 through 30 kw. See

Product Data for available accessory kits.

--> HEATER PACKAGES

This unit may or may not be equipped with an electric heater package. For units not equipped with _actory installed heat, a _actory-approved, field

installed UL listed heater package is available from your equipment supplier. See unit rating plate lbr a list of factory approved heaters. Heaters

that are not factory approved could cause damage which would not be covered under the equipment wan'anty. If fan coil contains a factory installed

heater package, minimum circuit ampacity (MCA) and maximum fuse/breaker may be different than units with a same size field installed accessory

heater. The difference is not an error and is clue to calculation difference per UL guidelines.

INSTALLATION

---> PROCEDURE I--CHECK EQUIPMENT

Unpack unit and move to final location. Remove carton taking care not to damage unit.

Inspect equipment for damage prior to installation. File claim with shipping company if shipment is damaged or incomplete. Locate unit rating

plate which contains proper installation information. Check rating plate to be sure unit matches job specifications.

PROCEDURE 2--MOUNT UNIT

Unit can stand o1" lie on floor, or hang from ceiling o1"walh Allow space for wiring, piping, and selwicing unit.

IMPORTANT: When unit is installed over a finished ceiling and/or living area, building codes may require a field-supplied secondary condensate

pan to be installed under entire unit. Some localities may allow as an alternative, the running of a separate, secondary condensate line. Consult

local codes for additional restrictions or precantions.

A. Upflow Installation

If return air is to be ducted through a floor, set unit on floor over opening and use 1/8- to 1/4-m. thick fireproof resilient gasket between duct,

unit, and floor.

Side return is a field option on slope coil models. Cut opening per dimensions. (See Fig. 1.) A field-supplied bottom closure is required.

Form: IM-PF1M-04 Cancels: IM-PF1M-03 Printed in U.S.A. 1-03 Catalog No. 53PF-1M5

Summary of content (20 pages)

PAGE 1
Installation Instruction PF1MNB Direct Expansion Fan Coil Units Sizes 018m071 NOTE: Read the entire This symbol instruction -_ indicates manual a change from be_bre starting the installation. the last publication. SAFETY hnproper installation, adjustment, alteration, cause personal injury or property The qualified installer or agency packaged (NEC) when CONSIDERATIONS maintenance, damage.
PAGE 2
POWER ENTRY --_ OPTIONS _ _ IELD SUPPLIED SUPPLYDUCT OWVOLOPTIONS 018-060 21-1N. FRONT SERVICE 07024-1N. CLEARANCE UNIT A 0!8/024 12 In. 030/036 17 In. 042 !9 In. UPFLOW/_ 2°w FIELD MODIFIED PRIMA_ A SIDE RETURN LOCATION FOR UNITS ONLY SLOPE COIL UPFLOW/DOWNFLOW SECONDARY DRAIN II UPFLOW/DOWN FLOW _/ PRIMARY DRAIN FIELD SUPPLIED RETURN PLENUM A00069 Fig. l--Slope B.
PAGE 3
!RIMARY FIELD _ SUPPLIED HANGING _ DRAIN , DRAIN STRAPS 018-060 21-IN. 070 24-1N. FRONT SERVICE CLEARANCE (FULL FACE [ OF UNIT) UNIT LOW VO LT ENTRY OPTIONS " ccgss o SECONDARY DRAIN POWER ENTRY OPTIONS A00070 Fig.
PAGE 4
COIL MOUNTING BLOWER ASSEMBLY COIL SUPPORT RAIL SLOPE COIL SKI •PRIMARY DRAIN CONNECTIONS SECONDARY DRAIN A03001 -e Fig. 4--Conversion for Horizontal Right Applications Using a Slope Coil SEAL CONNECTIONS HORIZONTAL RIGHT APPLICATION SUPPORT RAIL BRACKET DRAIN SUPPORT BRACKET COIL_ SUPPORT RAIL BRACKET DRAIN PAN HORIZONTAL SECONDARY HORIZONTAL RIGHT DRAIN RIGHT A00071 Fig. 5--Conversion for sure the pan cap in the fitting door is properly ----) 6. Make ---) 7. Add gaskets 8.
PAGE 5
FACTORY SHIPPED HORIZONTAL LEFT APPLICATION COIL COIL SUPPORT RAIL DRAIN PAN SUPPORT BRACKET COIL HORIZONTAL DRAIN PAN PRIMARY DRAIN HORIZONTAL LEFT AIR SEAL \ ASSEMBLY___ SECONDARY DRAIN HORIZONTAL LEFT REFRIGERANT CONNECTIONS A00072 Fig. 6---A-Coil 4. Slide coil and pan assembly 5. Remove horizontal 6. Convert air-seal &ain air-seal b. Remove air splitter c. Remove d. Install filler plate e. Remove f. Install 7. Install ---) troughs 2 snap-in horizontal 12.
PAGE 6
PROCEDURE NOTE: A. 4--ELECTRICAL See B for electrical Sizes CONNECTIONS connection 018 Through of size 071. 070 All products fi'om the factory utilize a printed-circuit board (PCB) which selection terminal (SPT), and time delay relay (TDR) jumper. To disable When a _actory-approved connections accessory heater to be sure none were package loosened has been installed, in transit Z_ CAUTION: If a disconnect switch electrical or refrigerant components. or installation.
PAGE 7
FAN COIL 'CONTROL' THERMOSTAT FAN COIL 'CONTROL' THERMOSTAT _R _zZL__ G [] W3 W3 E E AIR COND. AIR COND. A94058 Fig, 8--Wiring Layout (Cooling Air Conditioning Only) FAN COIL (CONTROL) THERMOSTAT A94059 Unit Fig.
PAGE 8
FAN COIL 'CONTROL' TH ERMOSTAT [2> RED HEAT PUMP (CONTROL R R G []- c C BLU ODTS! [] []- W2 ] [] [] O Y EMERGENCY HEAT RELAY A94062 Fig. 12--Wiring Layout Heat Pump Unit (Cooling and 2-Stage Heat with 2 Outdoor Thermostats) YEL BLK PRIMARY A94067 NOTE: In low static Sizes 018 through applications, lower 036 have 2 motor speed taps. Sizes 042 through unit applications. Medium speed (blue) systems of straight matched systems. B.
PAGE 9
PCB FAN SINGLE INSULATING CAP(2) MOTOR SPEED TAPLEADS 2 OR3 SPEED TAP TERMINAL WRAPPER J COMMON YELLOW FANDECK A94068 Fig.
PAGE 10
Thermostat Subbase 07! UNIT Outdoor Terminal BIock Circuit Board rq m DFq El-DE_13-- D --t-q A97011 Fig. 15--Single-Speed GROUND Heat Pump z_x WARNING: The cabinet must have an uninterrupted or unbroken codes to minimize personal injury if an electrical fault should occur. conduit ground shock, when installed in accordance with existing wire must be used. (See Ground/Conduit fire, NOTE: Use accomplished ground electrical codes. If conduit connection uses Note below.
PAGE 11
PROCEDURE 7--CONDENSATE DRAINS --_ z_ CAUTION: The conversion of the fan coil to downflow requires special procedures A-coil and Slope units. The vertical drains have an overflow hole between the primary and secondary drain applications except downflow, but must be used for downflow. During the conversion process, remove the plastic cap covering the vertical drains only the overflow hole and discard.
PAGE 12
UNIT t 2" MIN DO NOT USE SHALLOW RUNNING TRAPS! A03013 A03002 --_ Fig. 17--Recommended Condensate Trap -_ Fig. 18--Insufficient Condensate Trap CONTROL BOARD OVAC "If' FAN RELAY SPT ACCESS PANEL T C C TO ii I 2o8,23OVAC COM MOTOR (USE FACTORY KIT OR FIELD-SUPPLIED TRAP OF SUFFICIENT DEPTH. STANDARD P-TRAPS ARE NOT SUFFICIENT.
PAGE 13
LOW VOLTAGE TERMINAL PRINTED BLOCK CIRCUIT BOARD --___ A z W/ MOLEX 12-PIN CONNECTOR A95275 Fig. 21--Detail EASY SELECT of PFIMNB071 Printed-Circuit Board _ FAN COIL AUX1 AUX2 (C) (G) r'_J 230VAC OR 115 VAC BRANCH CKT GND HOTNEUT cl _ _ WriT TO EAC J A95277 Fig. 22--PCB Mounted with Wiring Cleaner Relay and Accessory Air A98625 Fig.
PAGE 14
FAN COIL CONTROL) THERMOSTAT HEAT PUMP CONTROL gS._ R _G FAN COIL CONTROL THERMOSTAT _--c _-_R W3 [] [] %: G ,E , W2 O I [] i _ I I _ I ........ _ I I i C:5 y I L --I C I m FAN HUMIDIFIE :I / BL55_ W3 AIR COND. I I _1 .......... i 7 RELAY I _,', I ' m L____I I I -- -11 I 11 [] , , I L--4 I ...... FAN HUM_ H_AT A95295 A95294 Fig. 24--Wiring Layout of Humidifier F_ Fig.
PAGE 15
ELECTRIC HEAT OR EMERGENCY HEAT Thermostat closes R to W. W energizes nonnally closed contacts on fan relay. de-energized B. after heater PF1MNB071 closes COOLING MODE Thermostat closes HEAT R to Y/Y2, HEATING circuit of Operation closes fan airflow. single-speed 02"W2. Fan coil delivers electric cooling airflow. MODE the selected heat airflow. MODE circuit R to Y/Y2, HEATING closes runs at continuous R to O, and R to G.
PAGE 16
i. Thestandard 90secoffdelay (Factory setting) at100percent airflow. 2. No delay option used for servicing unit 3. A 30 sec on delay with no airflow/90 to heat-up/cool-down 4. ENH, enhanced This profile F. selection, CONTINUOUS 2. MED factory speed move 3. HI speed G.
PAGE 17
Table I--PFIM UNIT FAN SIZE 071 OUTDOOR INIT (APA(ITY BTUH ELECTRIC LO NOM HI LO NOM HI LO NOM HI LO NOM HI 36.000 1100 1100 1250 1350 1350 1350 * * * * * * 42.000 1t40 1270 1460 1350 1350 1460 1525 1525 1525 * * * 48.000 1305 1450 1665 1350 1450 1665 1525 1525 1665 1750 1750 1750 1810 2085 1630 1810 2085 1630 1810 2085 1750 1810 2085 0 60.
PAGE 18
PAGE 19