Plans (2) ( 0) Lr Mechanical General Notes:
/�Qj I �' } NN 1. Cooling equipment does not exceed the load of the calculated requirement.
lE,~� 2. All steel ducting will be 26 ga minimum galvanized. Flex per Mfg.
/ ��14 'OA"- 3. Heating and cooling ducting to be designed to not exceed 0.5 wc positive (supply)and 0.5 wc
�v negative(return).
ey 4. Provide programmable thermostat. 5 degree deadband minimum. 7 day. Microprocessor. Set
�� program for night energy savings.
5. Seal ducting with UL listed mastic or mastic tape.
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6. Fan motor does not exceed allowable,first available above BHP.
t ( / 7. Max leakage rate of OSA or exhaust dampers to be 4 cfm/sft @ 1.0 sp.
8. Provide 0 and M to building owner.
.1— -7 , t RECEIVE®
.- �_ _iI I 1 SEP 18 2019
I CITY OF TIGARD
— �0 BUILDING DIVISION
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1/ Scope of Work
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L._ Oregon Heating and Air Conditioning will perform the following scope of work:
‘•-.° �,-O> , 1. Provide and install (1) new packaged heat pump to replace existing heat pump.
2. Provide (6) ceiling mount exhaust fans. ,
(,...\\A\ \4di" 3. Ducting and air distribution as drawn.
Ventilation Requirements- based on 2014 OMSC table 403.3
Equipment Schedule
HP1-. Bryant 607CNXC42000- 3.5 ton, 7).08/1/60, 96/107 MCA, 100/110 MOCP. 42,000
HP1 single zone Patient room Btu cooling, 14.1 seer. 15 KW strip heat. Manual OSA damper. On Ground.
1400 sft breathable zone
Persons-25 cfm X 10p/1400sft= 350 cfm VALIDITY OF PERMITEF1- Nutone AEN80- 75 cfm @ 0.25sp. on timer.
Area-0.12 cfm/sft= 168 cfm THE ISSUANCE OF A PERMIT EF2- Nutone AEN110- 90 cfm @ 0.25sp. on timer.
Vbz =350 cfm BASED ON CONSTRUCTION EF3- Panasonic FV 20VQ3- 190 cfm @0.25sp. on stat.
Ez =0.7(supply and floor return) DOCUMENTS AND OTHER M 1
Voz= 500 cfm YY
DATA SHALL NOT PREVENT
THE CODE OFFICIAL FROM
RTU3- REQUIRING THE CORRECTION
SA= 1400 cfm OF ERRORS.OSSC 105.4
RA= 900 cfm OHAC
OSA= 500 cfm
CCB # 137653